(2008) 1 SLR (R)
(2008) 1 SLR (R)
Rampant drug addiction among our young men and women will also
strike at the very foundations of our social fabric and undermine our
economy. Once ensnared by drug dependence they will no longer be
productive digits contributing to our economic and social progress.
They will not be able to carry on with their regular jobs. Usually for the
young men, they turn to all sorts of crime, and for the girls, to
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[2008] 1SLR(R) Tan Kiam Peng v PP 15
prostitution to get money to buy their badly needed supply of drugs.
Thus, as a developing country, our progress and very survival will be
seriously threatened.
Singapore, as it is situated, is in a rather vulnerable position. The
Golden Triangle straddling Thailand, Laos and Burma, which is the
source of supply of narcotics, is not far from Singapore. Being a busy
port, an important air communication centre and an open coastline
easily accessible from neighbouring countries, it makes detection of
supplies of narcotics coming in difficult. Further, the manufacture of
morphine and heroin is not a complicated process and can be done in
as small a space as a toilet. Our Central Narcotics Bureau has
intelligence information that much of the heroin brought into
Singapore has been manufactured in illicit laboratories clandestinely
established in a neighbouring country. The Central Narcotics Bureau
also reported that there was an abortive attempt to set up an illicit
heroin laboratory in Singapore itself.
Heroin is one of the most potent and dangerous drugs. In the first half
of 1974 only nine out of 1,793 drug abusers arrested consumed heroin.
In the corresponding period this year 1,007 out of 1,921 drug abusers
arrested consumed heroin. Thus the number of heroin abusers arrested
increased by almost 112 times in 12 months. This is an explosive
increase by any reckoning. Equally significant is the fact that the
number of traffickers arrested for dealing in heroin had also increased
from six in the first half of 1974 to 26 in the corresponding period this
year.
28 And, in the judicial context, F A Chua J, delivering the grounds of
judgment of the court in the Singapore Court of Criminal Appeal decision
of Ng Kwok Chun v PP [1992] 3 SLR(R) 256, observed (at [19]) that [i]t is
unnecessary to stress the damage that non-medical use of heroin and
morphine can inflict upon the society at large. Further, in the court below,
the Judge observed thus (GD at [8]):
The drug trade is a major social evil. While drug peddlers may not be
visibly seen or caught taking away or damaging lives, they nonetheless
inflict alarmingly insidious problems on society that have the potential
to destroy its very fabric if left unchecked. Each successful trafficker
has the disturbing potential to inflict enormous and enduring harm
over an extremely wide circle of victims. Apart from the harm that
drugs inflict on an addicts well-being, drug trafficking engenders and
feeds a vicious cycle of crime that inexorably ripples through the
community.
29 So much by way of a summary of the underlying policy of the Act.
Before proceeding to analyse s 18(2) of the Act proper, it would be
appropriate to clarify a House of Lords decision that has been cited
numerous times by Singapore courts.
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16 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
The significance of Warner v Metropolitan Police Commissioner
30 One of the most oft-cited decisions in the context of the local case law
is the House of Lords decision of Warner v Metropolitan Police
Commissioner [1969] 2 AC 256 (Warner). This is not surprising as the
case itself contains much general discussion specifically, on the meaning
of the concept of possession. However, we are of the view that, the
particular advantage just mentioned notwithstanding, it must also be borne
in mind that the rest of the discussion in Warner is (owing to the different
statutory contexts) irrelevant and that the application of Warner ought
therefore to be confined only to the point of general principle (with respect
to the concept of possession).
31 Simply put, the facts in Warner were as follows. The accused had two
packages in his car when he was stopped by the police. His defence was that
he believed that both packages contained scent, whereas one of the
packages contained a prohibited drug. He was charged under s 1(1) of the
then UK Drugs (Prevention of Misuse) Act 1964 (c 64) (the 1964 UK
Act). A point of law of general public importance was in fact stated by the
Court of Appeal for decision by the House, as follows:
Whether for the purposes of section 1 of the Drugs (Prevention of
Misuse) Act 1964, a defendant is deemed to be in possession of a
prohibited substance when to his knowledge he is in physical
possession of the substance but is unaware of its true nature.
32 The material part of the s 1(1) of the 1964 UK Act itself read as
follows:
[I]t shall not be lawful for a person to have in his possession a
substance for the time being specified in the Schedule to this Act unless
33 The actual holding with regard to the issue just stated is clear: The
majority of the House in Warner held that that provision created an
absolute offence (in this regard, however, Lord Reid delivered a powerful,
albeit lone, dissenting judgment).
34 It should be noted, at the outset, that, unlike the provisions of the Act,
s 1(1) of the 1964 UK Act was silent with respect to the issue as to whether
or not mens rea was required; the word knowingly and/or allied words
did not appear in the provision itself (this was particularly emphasised by
Lord Guest in Warner at 300). It should also be noted that s 1(1) of the 1964
UK Act also expressly sets out exceptions under which the persons
concerned could lawfully possess drugs thus suggesting that all other
situations would fall within the ambit of the provision, regardless of
whether or not mens rea was present (a point emphasised, for example, by
Lord Pearce and Lord Wilberforce in Warner at 304305 and 312,
respectively). However, it should also be noted that the reasoning of the
various law lords (even amongst the majority) did differ. An excellent
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[2008] 1SLR(R) Tan Kiam Peng v PP 17
summary may in fact be found in the UK Law Commissions Report on the
Mental Element in Crime (Law Com No 89, 1978) (Law Commission
Report) at paras 3334, and we therefore do not propose to examine the
various judgments in Warner in detail, save where certain passages might
throw light on the interpretation of the Act. However, it should be noted
that although the majority found that the offence concerned was an
absolute one, it also held that the summing-up by the trial judge to the jury
was wanting. The majority nevertheless proceeded to hold that the evidence
was so strong that no jury properly directed would have acquitted the
accused and therefore dismissed the accuseds appeal, applying the proviso
to s 4(1) of the UK Criminal Appeal Act 1907 (c 23) (as amended by s 4 of
the UK Criminal Appeal Act 1966 (c 31)).
35 One key distinction between the situation in Warner and that under
the Act is that, unlike the 1964 UK Act, the Act does not create absolute
offences. It is true that the Act does lay down (inter alia, in ss 18(1) and
18(2)) presumptions that the accused must rebut on a balance of
probabilities (see below at [60]). However, the situation under the Act is
nevertheless an advance over a situation where (as in Warner) the statutory
offences are absolute in nature (and see per Choo Han Teck J, delivering the
judgment of the court in the Singapore Court of Appeal decision of
Iwuchukwu Amara Tochi v PP [2006] 2 SLR(R) 503 at [9] (Tochi) (see also
at [41] below)). It should, nevertheless, be noted that even in Warner itself,
despite the holding of the majority that s 1 of the 1964 UK Act created an
absolute offence, most of the law lords in the majority did not, in effect, go
so far as to adhere to this particular holding without any qualification
whatsoever (apart from Lord Guest). Indeed, the following view expressed
by Lord Parker CJ in the English Court of Appeal decision of Lockyer v
Gibb [1967] 2 QB 243 (at 248) was clearly endorsed in Warner itself:
In my judgment it is quite clear that a person cannot be said to be in
possession of some article which he or she does not realise is, for
example, in her handbag, in her room, or in some other place over
which she has control. That I should have thought is elementary; if
something were slipped into your basket and you had not the vaguest
notion it was there at all, you could not possibly be said to be in
possession of it. [emphasis added]
36 Further, Lord Pearce, despite endorsing the proposition to the effect
that s 1 of the 1964 UK Act created an absolute offence, did proceed to
observe thus (Warner at 305306):
The situation with regard to containers presents further problems. If a
man is in possession of the contents of a package, prima facie his
possession of the package leads to the strong inference that he is in
possession of its contents. But can this be rebutted by evidence that he
was mistaken as to its contents? As in the case of goods that have been
planted in his pocket without his knowledge, so I do not think that he
is in possession of contents which are quite different in kind from what
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18 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
he believed. Thus the prima facie assumption is discharged if he proves
(or raises a real doubt in the matter) either (a) that he was a servant or
bailee who had no right to open it and no reason to suspect that its
contents were illicit or were drugs or (b) that although he was the
owner he had no knowledge of (including a genuine mistake as to) its
actual contents or of their illicit nature and that he received them
innocently and also that he had had no reasonable opportunity since
receiving the package of acquainting himself with its actual contents.
For a man takes over a package or suitcase at risk as to its contents
being unlawful if he does not immediately examine it (if he is entitled
to do so). As soon as may be he should examine it and if he finds the
contents suspicious reject possession by either throwing them away or
by taking immediate sensible steps for their disposal. [original
emphasis in italics; emphasis added in bold italics]
37 The above observation by Lord Pearce (see also, in similar vein, by the
same law lord at 307308 and by Lord Wilberforce at 312, as well as
Lord Pearces views on Warner itself in the subsequent House of Lords
decision of Sweet v Parsley [1970] AC 132 at 157158; though cf the
interpretation of Lord Pearces judgment in Warner by Michael Hor in
Managing Mens Rea in Singapore (2006) 18 SAcLJ 314, especially at
paras 3043, which, however, is (in turn) to be contrasted with the
observations expressed by Rudi Fortson in the leading UK work, Misuse of
Drugs and Drug Trafficking Offences (Sweet & Maxwell, 4th Ed, 2002)
(Fortson) at para 3-31) was in fact referred to by the Singapore Court of
Criminal Appeal in Chan Chi Pun v PP [1994] 1 SLR(R) 654 (Chan Chi
Pun) (cf also the decision of the Singapore Court of Appeal in Lim Beng
Soon v PP [2000] 3 SLR(R) 213). However, in applying both what it
perceived to be the common law test [emphasis added] under Warner and
the position pursuant to s 18(2) of the Act, the court in Chan Chi Pun
perhaps went, with respect, a little too far. As we shall elaborate in more
detail below, the first port of call in the local context must surely be the
actual language of the relevant provisions of the Act itself. Indeed, in a
decision of this court in Cheng Heng Lee v PP [1998] 3 SLR(R) 747 at [46]
(Cheng Heng Lee), the same observation appeared (in contrast) to be
utilised in the context of rebutting the presumption under s 18(2) of the Act
(cf also another decision of this court in Chou Kooi Pang v PP [1998] 3
SLR(R) 205 at [18][20] as well as the Singapore High Court decision of PP
v Lee Ngin Kiat [1992] 3 SLR(R) 955 at [13][16] (affirmed in Lee Ngin Kiat
v PP [1993] 1 SLR(R) 695 (Lee Ngin Kiat), but without, apparently, any
discussion of this particular issue, simply because counsel for the accused
had conceded that the drugs concerned were in the latters possession)).
38 Whilst still on the key distinction between the Act and the 1964 UK
Act, it would be pertinent to note that at least two of the law lords in
Warner recognised that there might be a need for the enactment of a
statutory provision in the UK context along the lines of s 18(2) of the Act.
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[2008] 1SLR(R) Tan Kiam Peng v PP 19
For example, Lord Reid observed as follows (Warner ([30] supra) at
279280):
So it would be quite sufficient to prove facts from which it could
properly be inferred that the accused knew that he had a prohibited
drug in his possession. That would not lead to an unreasonable result.
In a case like this Parliament, if consulted, might think it right to
transfer the onus of proof so that an accused would have to prove that
he neither knew nor had any reason to suspect that he had a prohibited
drug in his possession. [emphasis added]
39 And in the same case, Lord Pearce observed thus (at 302303):
Thirdly, Parliament may have intended what was described as a half-
way house in the full and able argument by counsel on both sides.
Each acknowledged its possibility and certain obvious advantages, but
neither felt able to give it any very solid support. By this method the
mere physical possession of drugs would be enough to throw on a
defendant the onus of establishing his innocence, and unless he did so
(on a balance of probabilities) he would be convicted. Unfortunately
I do not find the half-way house reconcilable with the speech of
Viscount Sankey L.C. in Woolmingtons case [1935] A.C. 462, 481.
Reluctantly, therefore, I am compelled to the decision that it is not
maintainable. Ultimately the burden of proof is always on the
prosecution unless it has been shifted by any statutory provision.
[emphasis added]
40 More importantly, the same law lord observed, later in his judgment,
as follows (at 307):
It would, I think, be an improvement of a difficult position if
Parliament were to enact that when a person has ownership or physical
possession of drugs he shall be guilty unless he proves on a balance of
probabilities that he was unaware of their nature or had reasonable
excuse for their possession. [emphasis added]
41 It is important to pause at this juncture and note that what was
suggested by Lord Reid as well as Lord Pearce above is, in substance,
already embodied within s 18(2) of the Act itself (interestingly, too, the UK
position is presently governed by s 28 of the Misuse of Drugs Act 1971
(c 38) (the 1971 UK Act), as a result of the invitation of Lord Pearce (see
at [40] above): per Lord Bonomy in the Scottish decision of Salmon v HM
Advocate 1999 SLT 169 at 186, who also observed that [i]n s 28 Parliament
set out defences echoing, to a considerable extent, the views of their
Lordships in Warner about the circumstances which led, or should lead, to
an acquittal on a charge of unlawful possession and reflecting the views of
Lord Pearce about the action which Parliament should take to clarify the
law; see also the English Court of Appeal decision of R v James McNamara
(1988) 87 Cr App R 246 at 251 (McNamara)). Indeed, Lord Pearces
observation (see at [40] above) was referred to by Choo J in Tochi ([35]
supra), thus confirming the point just made. However, any suggestion that
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20 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
the origin of s 18(2) can be traced to this suggestion in Warner is, with
respect, misconceived since (as we shall see below at [64][69]), s 18 had its
statutory analogues much earlier in the local context stretching as far back
as 1927.
42 Returning to Lord Reids observations quoted above (at [38]), the
learned law lord proceeded (contrary to the decision of the remaining
(majority) judges) to hold that the offence prescribed under the 1964 UK
Act was not an absolute one so that, in any event, the accused would be
afforded an opportunity to show that he neither knew nor had any reasons
to suspect that he had a prohibited drug in his possession.
43 Another key point is this: Lord Reid, who (as we have noted)
delivered a powerful dissent, nevertheless proceeded to endorse, first, the
doctrine of wilful blindness, which we shall consider in more detail below
(at [106][132]). Suffice it to state at this relatively preliminary juncture
that wilful blindness is considered, in law, to be the equivalent of actual
knowledge.
44 More importantly, perhaps, even Lord Reid was of the view that it was
unnecessary for the prosecution to prove that the accused knew that he had
the precise drugs concerned in his possession (indeed, this was not,
apparently, what the accused himself had argued for in Warner: see, for
example, at 290 and 300, per Lord Morris of Borth-y-Gest and Lord Guest,
respectively). As the learned law lord observed (Warner ([30] supra)
at 279):
Further it would be pedantic to hold that it must be shown that the
accused knew precisely which drug he had in his possession. Ignorance
of the law is no defence and in fact virtually everyone knows that there
are prohibited drugs. So it would be quite sufficient to prove facts from
which it could properly be inferred that the accused knew that he had a
prohibited drug in his possession. [emphasis added]
The observation embodied in the above quotation is, in fact, of general
import. And it is an important one, to which we shall return later in this
judgment (at [86][87]).
45 In a similar vein, Lord Morris observed thus (Warner at 286):
I think that the notion of having something in ones possession
involves a mental element. It involves in the first place that you know
that you have something in your possession. It does not, however,
involve that you know precisely what it is that you have got. [emphasis
added]
Again, the learned law lord later observed thus (at 289):
The question resolves itself into one as to the nature and extent of the
mental element which is involved in possession as that word is used
in the section now being considered. In my view, in order to establish
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[2008] 1SLR(R) Tan Kiam Peng v PP 21
possession the prosecution must prove that an accused was knowingly
in control of something in circumstances which showed that he was
assenting to being in control of it: they need not prove that in fact he
had actual knowledge of the nature of that which he had. [emphasis
added]
Later on in his judgment, Lord Morris also stated (at 295) that:
[B]efore the prosecution can succeed they must prove that a person
knowingly had in his possession something which in fact was a
prohibited substance. In my view, the prosecution discharged that
onus in this case. Was it, however, for the prosecution to prove that the
appellant knew the nature and quality of that which he had? In my
view, it was not. [emphasis added]
46 And Lord Wilberforce had occasion to observe thus (at 310311):
[I]n addition to physical control, he has, or ought to have imputed to
him the intention to possess, or knowledge that he does possess, what
is in fact a prohibited substance. If he has this intention or knowledge,
it is not additionally necessary that he should know the nature of the
substance. [emphasis added]
The same law lord, referring to the decision of Lockyer v Gibb ([35] supra),
later proceeded to state as follows (at 311):
One can only hold this decision to be wrong if the view is taken that to
constitute possession under this legislation knowledge not merely of
the presence of the thing is required but also knowledge of its attributes
or qualities. But (except perhaps under the old law of larceny) no
definition or theory of possession requires so much, nor does the
language or scheme of the Act postulate that such a degree of knowledge
should exist. I think the line was drawn here at the right point.
[emphasis added]
47 Likewise, Lord Pearce also observed as follows (at 304):
But when a man knows that he physically has an article in his
possession, how far does a mistake as to its essential attributes nullify
the apparent possession? It would be, for instance, quite unreal (and
particularly in such a context as one is here considering) to say that a
man who bought and kept a so-called authentic Rembrandt for years,
never had it in his possession because he later found by X-ray
examination that it was a skilful fake. When one draws a distinction
between a thing and its qualities, one gets involved in philosophic
intricacies which are not very appropriate to a blunt Act of Parliament
intended to curb the drug traffic. [emphasis added]
48 Perhaps more importantly, Lord Pearce proceeded, later on in his
judgment, to observe thus (at 305):
One may, therefore, exclude from the possession intended by the Act
the physical control of articles which have been planted on him
without his knowledge. [see also at [35] above] But how much further is
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22 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
one to go? If one goes to the extreme length of requiring the prosecution
to prove that possession implies a full knowledge of the name and
nature of the drug concerned, the efficacy of the Act is seriously
impaired, since many drug pedlars may in truth be unaware of this. I
think that the term possession is satisfied by a knowledge only of the
existence of the thing itself and not its qualities, and that ignorance or
mistake as to its qualities is not an excuse. This would comply with the
general understanding of the word possess. Though I reasonably
believe the tablets which I possess to be aspirin, yet if they turn out to
be heroin I am in possession of heroin tablets. This would be so I think
even if I believed them to be sweets. It would be otherwise if I believed
them to be something of a wholly different nature. At this point a
question of degree arises as to when a difference in qualities amounts to
a difference in kind. That is a matter for a jury who would probably
decide it sensibly in favour of the genuinely innocent but against the
guilty. [emphasis in italics and additional emphasis in bold italics
added]
49 Indeed, the words in bold italics in the above quotation were applied
by this court in Tan Ah Tee v PP [19791980] SLR(R) 311 (Tan Ah Tee)
(see also the Singapore High Court decision of PP v Tan Siew Lam [2000]
SGHC 161 at [15]). And, in the Singapore High Court decision of Shan Kai
Weng v PP [2004] 1 SLR(R) 57, Yong Pung How CJ observed thus (at [24]):
The position under our law, therefore, is that possession is proven once
the accused knows of the existence of the thing itself. Ignorance or
mistake as to its qualities is no excuse. The appellant knew that the
tablet was in his car. He believed it to be a sleeping pill, which, like the
aspirin of the hypothetical in Warner and Tan Ah Tee, is a drug. As
such, his ignorance as to the qualities of the tablet did not provide him
a defence to the charge of possession, and his contention that he did
not understand the nature of his plea could not stand. [emphasis
added]
50 However, we are of the view that that part of Lord Pearces
observations quoted at [48] above to the effect that if the accused
reasonably believed the tablets he or she possessed to be aspirin but that if
the tablets concerned turned out to be heroin, the accused would still be
assumed to be in possession of heroin tablets even if he or she believed them
to be sweets goes a little too far (see also GD, especially at [33]), and can
be explained on the basis that the learned law lord was of the view that s 1 of
the 1964 UK Act created an absolute offence. Nevertheless, to the extent
that they relate to the general principle to the effect that it is unnecessary for
the accused to know the precise nature of the drug concerned, Lord Pearces
observations are both relevant and helpful. Further, as the learned law lord
himself proceeded to point out, the accused would not be in possession of a
thing if he or she believed it to be something of a wholly different nature
and that [a]t this point a question of degree arises as to whether a
difference in qualities amounts to a difference in kind, which was itself a
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[2008] 1SLR(R) Tan Kiam Peng v PP 23
matter for a jury (see above at [48]). Indeed, this last-mentioned
observation emphasises the very factual nature of the entire inquiry. It is
also important to note that even Lord Reid (who was of the (minority) view
that s 1 of the 1964 Act did not create an absolute offence) expressed a
similar view with respect to the general principle just mentioned (see at [44]
above). In the circumstances, therefore, it might, with respect, have been
preferable, in fact, for this court in Tan Ah Tee to have cited Lord Reids
view instead.
51 This particular aspect of Warner is, as alluded to in the preceding
paragraph and as we shall see (at [87] below), one of general applicability, as
it deals with the concept of possession. However, as already pointed out
above, the central thrust of Warner is quite different from the situation
embodied within the Act (and ss 18(1) and 18(2) thereof in particular).
Hence, apart from this particular aspect of Warner (which we endorse
below (at [86][87])), we are of the view that Warner should play little or no
part in the Singapore jurisprudence in this particular area of the law.
52 Warner was, in fact, given much prominence in Tan Ah Tee ([49]
supra). There has also been a very long line of local cases that have
continued to cite both Tan Ah Tee as well as Warner. Indeed, in this courts
decision in Fun Seong Cheng v PP [1997] 2 SLR(R) 796 (Fun Seong
Cheng), it was observed (at [55]) that [a] long line of cases have since
followed Tan Ah Tee v PP and Warner v Metropolitan Police
Commissioner. This is no exaggeration and it would serve no purpose to
list out the numerous cases in this particular regard. Indeed, there was even
one instance where Warner was applied, with the court holding that no
reliance need be placed on s 18(1) of the Act (see the Singapore Court of
Criminal Appeal decision of Low Kok Wai v PP [1994] 1 SLR(R) 64),
although this particular decision can be explained on the basis that it was
clear, on the facts, that the accused not only had the only key to the car in
which the drugs were found but also knew that the said drugs were in the
car. Looked at in this light, it was clear that there was no need to rely on the
presumption in s 18(1) of the Act as such.
53 What is important in the context of the Act in general and this appeal
in particular is the fact that Tan Ah Tee only endorsed that part of
Lord Pearces judgment in Warner which dealt with the general concept of
possession. It is important to emphasise, once again, that the same approach
is, in fact, also to be found in the judgment of Lord Reid in the same
decision. Indeed, because the learned law lord differed from Lord Pearce
with regard to the interpretation to be accorded to s 1 of the 1964 UK Act, it
is clear beyond peradventure that he was indeed dealing with the general
concept of possession (see also at [44] and, especially, [50] above)). It is also
important to note that the different statutory regimes embodied,
respectively, in both Warner and the Act (as noted above) do not therefore
impact in any way on the views expressed on this general concept.
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24 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
Introduction to section 18(2) of the Act
54 As already mentioned, the principal focus in the present appeal is on
s 18(2) of the Act. However, s 18(2) must be read together with s 18(1) to
the extent that if the accused successfully rebuts the presumption under
s 18(1), the presumption under s 18(2) will not arise (see the Singapore
Court of Appeal decision of Lim Lye Huat Benny v PP [1995] 3 SLR(R) 689
(Lim Lye Huat Benny) at [19]). This follows, in fact, from the language as
well as logic of ss 18(1) and 18(2) themselves. It will therefore be useful to
set out both provisions, which read as follows:
Presumption of possession and knowledge of controlled drugs
18.(1) Any person who is proved to have had in his possession or
custody or under his control
(a) anything containing a controlled drug;
(b) the keys of anything containing a controlled drug;
(c) the keys of any place or premises or any part thereof in
which a controlled drug is found; or
(d) a document of title relating to a controlled drug or any
other document intended for the delivery of a controlled drug,
shall, until the contrary is proved, be presumed to have had that drug
in his possession.
(2) Any person who is proved or presumed to have had a controlled
drug in his possession shall, until the contrary is proved, be presumed
to have known the nature of that drug.
It should, however, also be clarified that if the prosecution actually proves
that the accused is, in fact, in possession of a controlled drug, then the
presumption under s 18(2) of the Act would still operate (unless, of course,
it is proved that the accused has actual knowledge of the nature of the drug,
in which case there would be no need to invoke the presumption under
s 18(2)). In such a situation (viz, one where the prosecution actually proves
that the accused is, in fact, in possession of a controlled drug), there is
simply no need to invoke the presumption under s 18(1) of the Act in the
first instance. This is, in fact, the situation in the present appeal.
55 This is therefore clearly not a situation where mens rea has been
dispensed with by Parliament (the general principles governing such a
situation are set out succinctly by the Judicial Committee of the Privy
Council in Lim Chin Aik v The Queen [1963] AC 160 and Gammon (Hong
Kong) Ltd v Attorney-General of Hong Kong [1985] AC 1, both cases of
which were applied in the Singapore High Court decision of PP v Phua
Keng Tong [19851986] SLR(R) 545, and the latter case of which was
applied in the (also) Singapore High Court decision of PP v Teo Kwang
Kiang [1991] 2 SLR(R) 560). However, because of the policy underlying the
Act as well as the practical difficulty (in the nature of things) for the
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[2008] 1SLR(R) Tan Kiam Peng v PP 25
prosecution to prove possession and knowledge on the part of the accused,
the presumptions in ss 18(1) and 18(2) have been introduced to mitigate
this particular difficulty and ensure not only that the policy underlying the
Act is not frustrated but also that it is fulfilled.
56 At this juncture, we should note that the charge against the appellant
in the present case involves the offence of importing a controlled drug
under s 7 of the Act. Section 7 itself reads as follows:
Import and export of controlled drugs
7. Except as authorised by this Act, it shall be an offence for a
person to import into or export from Singapore a controlled drug.
57 And, in s 2(1) of the Interpretation Act (Cap 1, 2002 Rev Ed),
export and import are, unless there is something in the subject or
context inconsistent with such construction or unless it is therein otherwise
expressly provided, assigned the following respective meanings:
export, with its grammatical variations and cognate expressions,
means to take or cause to be taken out of Singapore by land, sea or air;
(d) any person who is found to have had in his custody or under
his control any dangerous drug shall, until the contrary is proved,
be deemed to have been in possession of such drug and shall, until
the contrary is proved, be deemed to have known the nature of
such drug;
(e) any person who is found to have had in his possession or under
his control or subject to his order any document of title relating to
any dangerous drug shall, until the contrary is proved, be deemed
to have known the nature of such drug;
[emphasis added]
69 The important point to reiterate is that ss 18(1) and 18(2) of the Act
are therefore by no means novel, having had antecedents going as far back
as 1927. More importantly, as a consequence, the popular view to the
effect that the presumptions in ss 18(1) and 18(2) of the Act were motivated
by the decision in Warner (([30] supra); see also GD at [15]) is, with respect,
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30 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
misconceived. All these legislative antecedents, to re-emphasise an
important point, antedated the decision in Warner. This is not to state that
the general principles as well as approaches in Warner are necessarily
irrelevant. However, it is imperative to emphasise that the first and
foremost guidance must come from the actual language of the Act itself
(and, in particular, in the context of the present proceedings, s 18(2)).
70 In this regard, in the Singapore Privy Council decision of Ong Ah
Chuan v PP [19791980] SLR(R) 710 (which was also referred to in the GD
at [17]), Lord Diplock, who delivered the judgment of the Board, observed
thus (at [28]):
In a crime of specific intent where the difference between it and some
lesser offence is the particular purpose with which an act, in itself
unlawful, was done, in their Lordships view it borders on the fanciful
to suggest that a law offends against some fundamental rule of natural
justice because it provides that upon the Prosecutions proving that
certain acts consistent with that purpose and in themselves unlawful
were done by the accused, the court shall infer that they were in fact
done for that purpose unless there is evidence adduced which on the
balance of probabilities suffices to displace the inference. The purpose
with which he did an act is peculiarly within the knowledge of the
accused. There is nothing unfair in requiring him to satisfy the court that
he did the acts for some less heinous purpose if such be the fact.
Presumptions of this kind are a common feature of modern legislation
concerning the possession and use of things that present danger to society
like addictive drugs, explosives, arms and ammunition. [emphasis
added]
71 Lest it be thought that this is a uniquely Singaporean approach, the
same view was also acknowledged (albeit in the context of the then UK
drugs legislation) by none other than one of the most accomplished and
famous common law scholars of the twentieth century
Prof A L Goodhart. In his influential article, Possession of Drugs and
Absolute Liability (1968) 84 LQR 382, Prof Goodhart examined the
holdings and implications of Warner ([30] supra). Indeed, he described
Warner as probably the most interesting case in many years that has been
decided on the subject of possession (see ibid at 383). More importantly,
the learned author referred to the rationale underlying the approach
adopted by the majority in Warner (ibid at 386):
[I]t is essential to note that if the physical possession of an
unauthorised drug does not create absolute liability, then an addict or a
drug pedlar may be able to persuade a jury that there was a possibility
that the tablets had got into his possession by accident, or had been
planted on him, or that he had been told by his supplier that they were
an innocent remedy. The inevitable result would be that the
enforcement of the law would become far more difficult. It must be
remembered that vast sums of money are involved in the drug trade. It
costs very little to manufacture these drugs, but the expense of getting
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[2008] 1SLR(R) Tan Kiam Peng v PP 31
them distributed is very large because the distributors, both the large
and the small ones, are not willing to face the chance of imprisonment
unless the profits they make are commensurate with the risk. The
traffickers will, therefore, take every possible step to protect their agents
against a possible conviction. Is it unreasonable in these circumstances
to suggest that [the UK] Parliament did intend to provide that the
physical possession of unauthorised drugs, which it is comparatively
easy to prove, is absolute proof of guilt, even at the faint risk that the
possessor was morally innocent, especially as evidence concerning this
moral innocence could be given when the question of sentence was
under consideration? Moreover, in how many instances is it likely that
drugs will be planted on an innocent man? [emphasis added]
72 We have, of course, seen (at [35] above) that, unlike the 1964 UK Act,
ss 18(1) and 18(2) do not, in fact, adopt an absolute approach. However, the
policy factors enunciated by Prof Goodhart in the above quotation are no
less relevant to the Singapore context or the context of any other country
for that matter in so far as this particular sphere of the law is concerned.
73 Prof Goodhart also commented on the suggestion for legislative
reform by Lord Pearce (above at [40]) that would result in the statutory
equivalent of ss 18(1) and 18(2) of the Act and, in particular, on one
possible objection to it, as follows ([71] supra at 389):
The first objection, which is a minor one, is that the suggested
provision seems to be in conflict with the golden rule as stated in the
Woolmington case [[1935] AC 462] that throughout the web of the
English criminal law one golden thread is always to be seen, that it is
the duty of the prosecution to prove the prisoners guilt. The answer to
this objection is that no rule is so golden that there cannot be an
exception to it if justice requires it. After all, the function of the
Woolmington rule is to protect an accused person, so that an exception
to it, which may benefit him, has much to be said in its favour.
[emphasis added]
[Significantly, the last sentence is a reference to the mitigation of the
absolute approach under the 1964 UK Act, which is, however, not
present in ss 18(1) and 18(2) of the Act.]
74 It is also noteworthy that the UK Law Commission itself has
considered the arguments both for as well as against having statutory
presumptions in the context of the mental element in crime: see the Law
Commission Report ([34] supra, especially at paras 7985).
75 There has, however, been some dissatisfaction expressed with regard
to the presumptions contained in the Act in general and (in the context of
the present proceedings) ss 18(1) and 18(2) thereof in particular (see, for
example, Michael Hor, Misuse of Drugs and Aberrations in the Criminal
Law (2001) 13 SAcLJ 54). The general thrust of such dissatisfaction is that
the concept of mens rea has been undermined. In a practical context, it is
true that the accused bears the burden of rebutting applicable presumptions
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32 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
under the Act. However, that is not only what the relevant provisions of the
Act require. The Act is also undergirded by twin policies that are
inextricably connected with each other ensuring that the general policy of
the Act is not undermined as well as simultaneously ensuring that (unlike
the UK legislation at issue in Warner ([30] supra)) the concept of mens rea
is still retained. The Act is structured in such a manner as to ensure that
truly innocent persons are (in so far as the issue of possession is concerned)
able to rebut the initial presumption (in s 18(1)) without any difficulties.
However, this structure also ensures that accused who are truly guilty under
the relevant provisions of the Act are not given carte blanche to deny
possession by mere assertion, without more, hence undermining the
general policy of the Act itself. As we shall elaborate in the conclusion to
this judgment, the inimical effects that would result from a frustration of
the general policy of the Act generate not only social ills and tragedy but
also simultaneously violate the individual rights of those who are adversely
and directly impacted by the availability (and, hence purchase as well as
consumption) of controlled drugs on the open market (including, in many
instances, innocent members of their respective families as well). These
very important aspects have generally been downplayed by critics of the Act
who, at best, mention them in passing without more only to revert to the
alleged contravention of the rights of the accused against whom (in their
view) no presumptions should operate against. However, these critics never
directly address the issue as to what the reality would be if no presumptions
were in operation a reality that even Prof Goodhart acknowledged in the
UK context (see at [71] above). In any event, the courts must observe these
considerations of policy enacted by the Legislature by applying the law
objectively to the facts at hand. That having been said, we are of the view
that these considerations of policy are not only valid and practical but also
(as we have already mentioned) protect the precious individual rights of
others in society. A purely theoretical discourse which tends to abstract
itself from the realities and adopts a one-sided approach (which, at bottom,
favours only the accused) tends to not only implode by its very abstraction
but also ignores the fact that, in an imperfect and complex world, there is
necessarily a whole compendium of rights, all of which must be balanced.
Looked at in this light, any theoretical discourse which tends to favour only
one conclusion whilst ignoring other approaches as well as considerations
and (worse still) other wider consequences, gives, with respect, a distorted
view (see also Chan Sek Keong, The Criminal Process The Singapore
Model (1996) 17 Sing L Rev 433, especially at 494498). However, such
discourse is nevertheless important as well as helpful in reminding us that
we must also never forget the rights of the accused and that, where the context
and facts warrant it, the presumptions should be rebutted accordingly.
However, to argue that the presumptions should be jettisoned altogether
just because they might (potentially) operate against an accused not only
ignores the reality of things but also throws out the baby together with the
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[2008] 1SLR(R) Tan Kiam Peng v PP 33
bathwater. To put it simply, all lives and rights are precious. To this end, the
Legislature has put in place a structure that balances the rights of accused
persons on the one hand and the rights of persons in the wider society on
the other.
The issue
76 Indeed, this appears to be, to the best of our knowledge, one of the
very rare occasions when it has been sought to argue, in the context of
s 18(2) of the Act and in the most specific of fashions, that although the
accused did in fact know that he was in possession of a controlled drug, he
did not know that he was in possession of the specific drug in question. A
similar argument was made in the Singapore Court of Appeal decision of
Wong Soon Lee ([60] supra). In that case, the accused stated that he did not
know that the drugs he was carrying were heroin and that he had believed
that they were less serious drugs for which he, if convicted, would at the
most have to pay a fine only. The trial judge found, on the facts, that the
accused actually knew that he was in possession of heroin. The Court of
Appeal affirmed the trial judges decision, but appeared to rely upon the
doctrine of wilful blindness instead. Yong Pung How CJ, who delivered the
grounds of judgment of the court, observed thus (at [45]):
Having considered all the arguments canvassed, we were unable to
accept the appellants contention that the trial judge erred in coming to
the decision he came to. First, the circumstances in which the appellant
received the drugs were so suspect that any reasonable man would have
gone one step further and ascertained for himself the precise nature of
the drugs. This the appellant had failed to do. The only reason why he
failed to do so was because he either knew the precise nature of the drugs
or he did not care to know. If the appellant chose to turn a blind eye and
merely relied on the assurance given by Ah Kee, he would not be able to
rebut the statutory presumption of knowledge. [emphasis added]
It is also worthy to note that, in Wong Soon Lee, the Court of Appeal
emphasised the trial judges findings of fact, especially with regard to the
accuseds credibility. This is of course an obvious point but is, more often
than not, of special importance owing to the very factual nature of an
accuseds attempts to rebut the presumptions under the Act and, on
occasion, may even be crucial (see, for example, the Singapore Court of
Appeal decisions of Lau Boon Huat v PP [1997] 2 SLR(R) 534 and PP v Ko
Mun Cheung [1990] 1 SLR(R) 226 (affirmed in Ko Mun Cheung v PP [1992]
1 SLR(R) 887 (Ko Mun Cheung)). While we do not exclude the possibility
that there could well be a case where an accused does not have knowledge of
the nature of the drugs, we note the observations made by Yong Pung
How CJ in Wong Soon Lee where he said thus ([60] supra at [48]):
The difficulty which the court faces in such situations is that the defence
of lack of knowledge of the precise nature of the drugs is all too often
raised by drug couriers. It is very hard for the court to believe, as in this
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34 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
case, that the appellant had no knowledge that the drugs were heroin
on the following grounds. He had agreed to deliver something which
he knew were illegal drugs to someone in Singapore, he did not know
the identity of the recipient, he received these drugs in a dark alley and
he was promised RM$1,000.00 in return for his trouble. [emphasis
added]
77 The above observations, with respect, generate some ambiguity. On
one reading, the court appears to be suggesting that the argument that
knowledge of the precise nature of the drugs is necessary is one that is to be
frowned upon as it will be raised by accused persons both often as well as
indiscriminately. However, on another reading, the court did refer to the
accuseds knowledge of the precise drug in the case itself (viz, heroin).
Nevertheless this reference is not conclusive simply because, as noted
above, the decision of the court in this case turned on the fact that the
accused had actual knowledge that the drug was heroin in any event. Of
some ambiguity, too, with respect to this particular issue is the decision of
this court in Lim Lye Huat Benny ([54] supra). We note, however, that
neither party to this appeal canvassed this ambiguity. However, because this
ambiguity raises a threshold interpretive issue, we pause to deal with it
before dealing with the further issue as to the type of knowledge required
under s 18(2) of the Act as well as whether or not the appellant has, in the
circumstances, rebutted the presumption embodied within s 18(2) itself.
78 Returning to the threshold interpretive issue that arises from a
reading of s 18(2) of the Act itself, there are, in our view, at least two
possible interpretations open to the court.
Two possible interpretations
(a) Introduction
79 As already mentioned, there are two possible interpretations.
80 The first possible interpretation is that the reference to knowledge in
s 18(2) of the Act is to knowledge that the drug concerned is a controlled
drug.
81 The second is the interpretation contended for by the appellant in the
present proceedings and referred to at the outset of the present part of this
judgment: That the reference to knowledge in s 18(2) of the Act is to
knowledge that the drug concerned is not only a controlled drug but also the
specific drug which it turns out the accused was in possession of. It should
be noted that, in the court below, this particular interpretation was assumed
to be the correct one, and the Judge certainly proceeded to render his
decision on this basis (see GD, especially at [36]). With respect, however,
the situation (as we shall see) is not as clear-cut as the Judge assumed it to
be.
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[2008] 1SLR(R) Tan Kiam Peng v PP 35
82 It would be appropriate to consider the arguments both for as well as
against each of these interpretations.
(b) The first interpretation
83 There are a number of arguments in favour of the first interpretation
that knowledge in s 18(2) of the Act is only a reference to knowledge that
the drug concerned is a controlled drug.
84 However, looking, first, at the literal language of s 18(2) itself
(reproduced above at [19] and [54]), it appears, at first blush, that the
second alternative must prevail. After all, the reference in that provision is
to knowledge of the nature of that drug.
85 Let us, however, now turn to the case law which, as we shall see,
supports the first interpretation especially when viewed in the context of
the underlying policy of the Act itself.
86 In this courts decision in Fun Seong Cheng ([52] supra), the following
passage from Lord Pearces judgment in Warner ([30] supra at 305) was
cited (at [54]):
One may, therefore, exclude from the possession intended by the Act
the physical control of articles which have been planted on him
without his knowledge. But how much further is one to go? If one goes to
the extreme length of requiring the prosecution to prove that possession
implies a full knowledge of the name and nature of the drug concerned,
the efficacy of the Act is seriously impaired, since many drug pedlars may
in truth be unaware of this. I think that the term possession is satisfied
by a knowledge only of the existence of the thing itself and not its
qualities [emphasis added]
87 The above observations by Lord Pearce, cited and adopted by this
court in Fun Seong Cheng, clearly exclude the need by the prosecution to
prove that the accused knew of the precise nature of the drug; the
prosecution need only prove that the accused knew that the drug is (in the
Singapore context) a controlled drug. This would, in fact, be an appropriate
juncture to emphasise that this basic approach was not only embodied
within the quotation above but generally within Warner itself a point
which emerges from our analysis of Warner above (at [44][48] and [50]).
Indeed, the court in Fun Seong Cheng proceeded to point out ([52] supra at
[55]) that this particular meaning of possession (enunciated by, inter alia,
Lord Pearce in Warner) had in fact been adopted by this court as well in the
earlier decision of Tan Ah Tee ([49] supra; see also the decision of this court
in Gulam bin Notan Mohd Shariff Jamalddin v PP [1999] 1 SLR(R) 498 at
[66]). Tan Ah Tee is, in fact, a seminal decision where the court cited, in
addition to the observations quoted above, in extenso from the judgment of
Lord Pearce in Warner. As we have already emphasised (above at
[50][52]), to the extent that the court in Warner was dealing with the
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36 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
general concept of possession, then that approach (adopted, as we have just
seen, in Tan Ah Tee as well as other Singapore decisions) clearly supports
the view that s 18(2) does not refer to the specific drug in question but,
rather, simply to controlled drugs generally. Indeed, Lord Pearces views in
Warner (quoted above at [48]) find a similar expression in Lord Guests
observations in the same case, as follows (([30] supra) at 301):
If the correct interpretation of section 1 [of the 1964 UK Act] is that the
prosecution are required to prove knowledge by the accused of the
existence of the substance this will be, in my view, a drug pedlars
charter in which a successful prosecution will be well-nigh impossible in
the case of the trafficker who conceals the drugs and on questioning
remains silent or at any rate refuses to disclose the origin of the drug.
If, therefore, this is not an absolute offence the prosecution will, in my
view, require to establish knowledge by the accused not only of possession
of the actual substance but also knowledge of the nature of the substance,
namely, that it is a prohibited drug under the Act. This would, in my
view, lead to wide-scale evasion of the Act. [emphasis added]
Interestingly and perhaps even significantly, this particular approach
towards the concept of possession has apparently been retained in the UK
context, despite the presence of a quite different statutory regime to that
which existed at the time Warner was decided: see, for example, the English
Court of Appeal decisions of McNamara ([41] supra) at 251252; R v
Gareth Edmund Lewis (1988) 87 Cr App R 270 at 276 and John A Leeson v R
[1999] EWCA Crim2176 (Leeson); as well as the House of Lords
decisions of R v Boyesen [1982] AC 768 at 773774 and Regina v Lambert
[2002] 2 AC 545, especially at [16], [56][59], [61][71], [120][123] and
[126] (cf also s 28(3)(a) of the 1971 UK Act itself as well as Fortson ([37]
supra, especially at paras 3-673-76) and Robert Ribeiro & John Perry,
Possession and Section 28 of the Misuse of Drugs Act 1971 [1979] Crim
LR 90, especially at 100101).
88 To summarise the general point at issue here, adoption of the first
interpretation is consistent with the general policy underlying the Act. In
contrast, adoption of the second interpretation will tend to undermine the
general policy of the Act. Take, for example, the facts of this very appeal.
Put simply, was it the intention of the Legislature that it is sufficient if the
prosecution proves that the accused knew that he was in possession of a
controlled drug or must it go further and prove that the accused knew that
it was a specific type of controlled drug (in this case, heroin)? The fact that
s 18(2) of the Act is required demonstrates how difficult it is for the
prosecution to prove knowledge on the part of the accused for, indeed, it is
all too easy for an accused to simply assert that he or she did not know that
what he or she was carrying contained a controlled drug, let alone a specific
controlled drug. One approach that Parliament could have adopted to
obviate this problem was to have simply made all offences under the Act
absolute ones which did not require proof of mens rea. This was, according
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[2008] 1SLR(R) Tan Kiam Peng v PP 37
to the majority of the House in Warner, precisely what the UK Parliament
did in so far as the 1964 UK Act was concerned. As we have already pointed
out, the Singapore Parliament did not adopt such an extreme approach.
However, to now interpret s 18(2) of the Act as requiring knowledge on the
part of the accused of the specific type of controlled drug in question is, in
substance and effect, to swing to the other extreme.
89 Indeed, looking closely at the various offences under the Act itself, it
will be seen that all of them only refer to the offence concerned in relation
to a controlled drug. It is of course true that, depending on the specific type
of controlled drug concerned, the punishment (under the Second Schedule
of the Act) would differ and drastically at that. However, the fact that the
substantive offences themselves do not make any reference to specific drugs
but, rather, to controlled drugs generally supports the first interpretation (cf
also Leeson ([87] supra), interpreting s 5(3) of the 1971 UK Act). Indeed,
the strongest evidence in support of the first interpretation can be found in
the general scheme of the Act itself. First, as just stated, the substantive
offences under the Act do not make any reference to any specific drugs but
only to controlled drugs, with a controlled drug defined under s 2 of the
Act to mean any substance or product which is for the time being specified
in Parts I, II or III of the First Schedule or anything that contains any such
substance or product. Second, the punishments for offences under the Act
are referred to in s 33 and the Second Schedule. To ascertain the
punishment for the offence committed by the accused, one looks under the
first column. Then one looks across the schedule for the specific offence or
type and quantity of the drug involved under the second column. The
punishment for the offence committed by the accused depends in large part
on whether the controlled drug has been classified as a Class A drug,
Class B drug, Class C drug, or is an offence for which the punishment will
vary depending on the quantity of the controlled drug with which the
accused was charged. The fact that the punishment concerned would differ
according to the specific type of controlled drug concerned is a logically
separate issue. Indeed, it has not been argued that an offence concerning a
drug which carries the death penalty (which punishment, incidentally, was
introduced after s 18(2) had been enacted in the original Act) should be
treated more leniently than the same offence concerning a drug which
carries a less severe criminal penalty. This is plainly correct, lest inequality
of treatment ensue as a result of such an approach. Is it then correct to argue
that because there may be harsher punishments meted out under law
depending on the type of controlled drug in question, an approach should
be adopted towards s 18(2) of the Act which would tend to undermine the
general policy of the Act itself? As we point out below (at [91]), however,
the possibility of harsher punishments may, albeit in another sense,
nevertheless be a relevant consideration and supports the second
interpretation to which our attention must now turn.
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38 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
(c) The second interpretation
90 As already mentioned above, the key argument in favour of the
second interpretation (that the reference to knowledge in s 18(2) of the Act
is to knowledge that the drug concerned is not only a controlled drug but is
also the specific drug which it turns out the accused was in possession of) is
the literal wording of s 18(2) itself. However, as we have also seen, the literal
wording of this provision is also (at least arguably) consistent with a
contrary interpretation (see generally above at [83][89]). More
importantly, we have also referred to the fact that the second interpretation
would tend to undermine the general policy of the Act itself.
91 In summary, it would appear that there are fewer arguments that
support the second interpretation. The fact that an accused charged under
the Act might receive very harsh punishments is, in and of itself, not
conclusive. However, it does not thereby follow that this particular fact is
wholly irrelevant. What is of direct relevance for the purposes of the present
issue is this: That where the possible punishments are harsh and may even
result in the imposition of the death penalty, the fact that an ambiguity in
the statutory language exists (thus giving rise to these two possible
interpretations) does tend to suggest that the benefit of the doubt ought to
be given to the accused in the light of the fact that adoption of the first
interpretation would tend, on balance, to work against him or her (cf also
GD at [37]). Indeed, the present appeal is precisely one such instance. In
this regard, it is important to note that the very strict approach in Warner,
albeit general in nature, was adopted in the context of punishments that
were less harsh than those under the Act, and which certainly did not
include the death penalty. In our view, this particular argument appears to
be the strongest in so far as support for the second interpretation is
concerned. Indeed, it might even be argued that there is no ambiguity in the
statutory language and that the literal language is, instead and in addition to
the argument just mentioned, the strongest argument in favour of the
second interpretation. We also pause to observe that there has been, to the
best of our knowledge, no local decision that has in fact adopted the first
interpretation.
(d) Conclusion
92 Unfortunately, no detailed argument with respect to which of these
two interpretations was to be preferred was proffered by counsel before this
court.
93 In the circumstances, we cannot and ought not to express a
definitive conclusion. This being the case, and in fairness to the appellant,
our analysis and decision will proceed on the footing that the second
interpretation applies (which interpretation in fact constituted the nub of
his argument before this court).
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[2008] 1SLR(R) Tan Kiam Peng v PP 39
94 Indeed, it is important to note that had we accepted the first
interpretation as being the conclusive one to adopt, that would, in the
nature of things, have concluded the present appeal. It will be recalled that
the appellant knew that he was in possession of a controlled drug, although
he had argued that he did not know that it was the precise or specific
controlled drug which he was in fact carrying, viz, heroin. Hence, since the
first interpretation entails that the reference to knowledge in s 18(2) of the
Act is to knowledge that the drug concerned is a controlled drug only, and
the appellant in the present proceedings had actual knowledge that he was
in possession of a controlled drug, his appeal would necessarily have failed if
the first interpretation was adopted.
95 However, given the specific language of s 18(2) of the Act, the need
(given the extreme penalties prescribed by the Act) to resolve any
ambiguities in interpretation (if they exist) in favour of the accused, as well
as the fact that no case has (to the best of our knowledge) adopted the first
interpretation, it would appear, in our view, that (whilst not expressing a
conclusive view in the absence of detailed argument) the second
interpretation appears to be the more persuasive one and (as pointed out at
[93] above) will in fact be adopted in the present appeal. It is, nevertheless,
important to note that it would be necessary to consider the further
question as to whether, on the second interpretation, the appellant in the
present proceedings had knowledge that what he was in possession of was
heroin. This raises, in turn, a further issue, which would apply equally to the
first interpretation what is the nature of the knowledge required under
s 18(2). We turn now to consider this particular issue. However, before
proceeding to do so, it should be noted that if it is actually proven, on the
facts of this particular case, that the appellant had actual knowledge that the
drugs he was carrying were not only controlled drugs within the meaning of
the Act but also that they contained heroin, then the presumption under
s 18(2) of the Act need not even be invoked in the first instance.
The issue of knowledge
(a) The issue stated
96 The answer to the question posed in the preceding paragraph turns
on the interpretation of the meaning of the word known in s 18(2) of the
Act. In other words, is the accused required to prove, on a balance of
probabilities (see generally above at [60]), that he or she did not have actual
knowledge of the nature of the drug concerned, or is the accused required
to go further and prove (once again, on a balance of probabilities) that he or
she did not have constructive knowledge of the nature of the drug
concerned?
97 The latter requirement (viz, that of constructive knowledge) is more
onerous in so far as the accused is concerned simply because the accused
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40 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
would have to prove that he or she not only did not have actual knowledge
of the nature of the drug concerned but also that he or she ought not, as a
reasonable person, to have known of the nature of the drug concerned. The
Judge did not accept such a requirement. However, by way of a preliminary
observation, we would point out that the concept of constructive
knowledge ought to be clearly distinguished from the doctrine of wilful
blindness, which is the legal equivalent of actual knowledge (cf also per
Willes J in the English Court of Criminal Appeal decision of R v William
Sleep (1861) CLC 472 at 480). Indeed, as we point out below, the Judge
himself accepts that wilful blindness constitutes (in the eyes of the law)
actual knowledge as well.
98 The Judge did not, strictly speaking, need to deal with the issue set out
in the preceding paragraph as he had (as already noted above) found that
the appellant possessed actual knowledge of the drug he was transporting or
was at least wilfully blind to the fact that he was transporting the said drug
(which wilful blindness was tantamount to actual knowledge) (see, for
example, GD at [55] and [65]). In the circumstances, therefore, there was
no need to even invoke the presumption in s 18(2) of the Act in the first
instance. To put it simply, the appellant would not even be needed to rebut
the presumption that he had actual knowledge of the nature of the drug
because, on the evidence, it was clear that he had actual knowledge of the
nature of the drug.
99 The Judge nevertheless proceeded to consider the interpretation of
s 18(2) in more general terms. Strictly speaking, the Judges observations in
this regard are obiter dicta. However, they are no less important or
significant from a legal as well as a practical perspective because of this.
100 Unfortunately, although counsel for the appellant, Mr Rengarajoo,
appeared (not surprisingly, perhaps) to support the Judges (albeit obiter)
approach, counsel for the respondent, Mr David Khoo, stated that the
prosecution was not taking a definite position on this particular issue in the
present appeal. However, because the issue is an extremely fundamental
one which the Judge took pains to analyse as well as expound upon, it
would be remiss of us if we did not consider it. We would point out, at this
juncture, however, that what is often perceived to be constructive (as
opposed to actual) knowledge might (as we shall see at [132] below) be
actual knowledge that arises from the application of the doctrine of wilful
blindness a doctrine which the Judge himself accepts as constituting actual
knowledge. Bearing this important observation in mind, we turn now to an
analysis of s 18(2) of the Act in general and the knowledge required under it
in particular.
(b) Analysis
101 The Judge, in commencing his analysis of the issue of knowledge in
the context of s 18(2) of the Act, began by considering the famous (or
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[2008] 1SLR(R) Tan Kiam Peng v PP 41
infamous, depending on the perspective one takes) observations on the five
levels of knowledge enunciated by Peter Gibson J (as he then was) in the
English High Court decision of Baden, Delvaux and Lecuit v Socit
Generale pour Favoriser le Dveloppement du Commerce et lIndustrie en
France SA [1983] BCLC 325 (Baden), as follows (at [250]):
What types of knowledge are relevant for the purposes of constructive
trusteeship? Counsel for the plaintiff (Mr Price) submits that
knowledge can comprise any one of five different mental states which
he described as follows: (i) actual knowledge; (ii) wilfully shutting ones
eyes to the obvious; (iii) wilfully and recklessly failing to make such
inquiries as an honest and reasonable man would make; (iv) knowledge
of circumstances which would indicate the facts to an honest and
reasonable man; (v) knowledge of circumstances which would put an
honest and reasonable man on inquiry. More accurately, apart from
actual knowledge they are formulations of the circumstances which
may lead the court to impute knowledge of the facts to the alleged
constructive trustee even though he lacked actual knowledge of those
facts. Thus the court will treat a person as having constructive
knowledge of the facts if he wilfully shuts his eyes to the relevant facts
which would be obvious if he opened his eyes, such constructive
knowledge being usually termed (though by a metaphor of historical
inaccuracy) Nelsonian knowledge. [emphasis added]
102 The Judge pertinently observed that the view of Peter Gibson J just
quoted had been severely criticised in the context of the law relating to
constructive trusts and, indeed, had been abandoned in so far as the specific
issue of knowing assistance (as opposed to knowing receipt) was concerned
(for developments in the context of knowing receipt, see, for example,
Jill E Martin, Hanbury & Martin Modern Equity (17th Ed, Sweet &
Maxwell, 2005), especially at paras 12-01612-019 and Hayton and
Marshall Commentary and Cases on the Law of Trusts and Equitable
Remedies (Sweet & Maxwell, 2005, 12th Ed by David Hayton & Charles
Mitchell), especially at paras 11-2111-27; cf also the observations in the
recent House of Lords decision of Criterion Properties plc v Statford UK
Properties LLC [2004] 1 WLR 1846). This abandonment was, in fact,
effected by the Judicial Committee of the Privy Council in Royal Brunei
Airlines Sdn Bhd v Philip Tan Kok Ming [1995] 2 AC 378 (Royal Brunei
Airlines) (noted by Hans Tjio, No Stranger to Unconscionability [2001]
JBL 299; see also GD at [22]). Indeed, as we point out below, this
abandonment as well as subsequent developments are not really germane to
the issues before us in the present appeal. This is not unfortunate as the
subsequent developments in this particular area of the law relating to
constructive trusts have been, to say the least, rather complex (see, for
example, the House of Lords decision in Twinsectra Ltd v Yardley [2002]
2 AC 164 (Twinsectra) (noted by T MYeo and HTjio, Knowing What Is
Dishonesty (2002) 118 LQR 502); the Privy Council decision of Barlow
Clowes International Ltd v Eurotrust International Ltd [2006] 1 All ER 333
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42 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
(noted by T MYeo, Dishonest Assistance: a Restatement from the Privy
Council (2006) 122 LQR 171); and the English High Court decisions of
Abou-Rahmah v Abacha [2006] 1 All ER (Comm) 247 (affirmed recently by
the English Court of Appeal in Abou-Rahmah v Abacha [2007]
1 All ER (Comm) 827) and Attorney General of Zambia v Meer Care &
Desai [2007] EWHC 952 (Ch)). Indeed, the entire area of law as a whole has
been and continues to be rife with conceptual as well as practical
difficulties (see, for example, the perceptive accounts in Charles Harpum,
The Stranger as Constructive Trustee (Part I) (1986) 102 LQR 114
(Part II, dealing, in the main, with knowing receipt was published in (1986)
102 LQR 267) and Simon Gardner, Knowing Assistance and Knowing
Receipt: Taking Stock (1996) 112 LQR 56). Significantly, though, the issue
of dishonesty may be closely related to the doctrine of wilful blindness (as is
evidenced from the discussion in both Royal Brunei Airlines as well as
Twinsectra). The doctrine of wilful blindness is an important one in the
present context and will, in fact, be dealt with in more detail below (see
generally at [106][128]).
103 Turning, now, to the issue of actual knowledge, it has been described
by Yong Pung How CJ, in the Singapore High Court decision of PP v Koo
Pui Fong [1996] 1 SLR(R) 734 (Koo Pui Fong) thus (at [14]):
I think that it would be reasonable to say that a person knows a
certain fact if he is aware that it exists or is almost certain that it exists
or will exist or occur. Thus knowledge entails a high degree of
certainty.
104 The practical reality, however, is, as Yong CJ put it in Koo Pui Fong,
that [o]f course, we would never have the benefit of going into the mind of
another person to ascertain his knowledge and in every case, knowledge is a
fact that has to be inferred from the circumstances (([103] supra) at [14];
see also the Singapore Court of Appeal decision of Tay Kah Tiang v PP
[2001] 1 SLR(R) 577 (Tay Kah Tiang) at [34]). Likewise, a finding of
wilful blindness is solely dependent on the relevant inferences to be drawn
by the trial judge from all the facts and circumstances of the particular case,
giving due weight, where necessary, to the credibility of the witnesses (per
Abdul Malik Ishak J in the Malaysian High Court decision of Public
Prosecutor v Tan Kok An [1996] 1 MLJ 89 at 101; see also per
Lord Esher MR in the English Court of Appeal decision of The English and
Scottish Mercantile Investment Company, Limited v Brunton [1892] 2 QB
700 at 708 (Brunton) (the relevant passage of which is quoted at [109]
below)). Indeed, short of a clear admission (which will, in the nature of
things, be extremely rare), inferences drawn from the precise facts and
circumstances of the case concerned are the only viable material available to
the court in order to ascertain whether or not either actual knowledge or
wilful blindness exists. It is, at this juncture, important to note, once again,
that wilful blindness has always been treated, in law, as the equivalent of
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[2008] 1SLR(R) Tan Kiam Peng v PP 43
actual knowledge (see also per Yong CJ in Koo Pui Fong, cited at the end of
this paragraph and per Devlin J in Roper v Taylors Central Garages (Exeter),
Limited [1951] 2 TLR 284 (Roper) (quoted at [116] below), as well as at
[123] below). This is entirely understandable as well as logical and practical
simply because the court cannot read a persons mind (see per Yong CJ in
Koo Pui Fong, supra, as well as per Lord Esher MR in Brunton at [109]
below). As we have just mentioned, a clear admission is going to be
extremely rare. The proof of an actual situation of actual knowledge is, in
the circumstances, going to be equally rare. This is a fortiori the case in so
far as offences under the Act are concerned. Accused persons are hardly
likely to admit to possessing actual knowledge and can (indeed, will) easily
disavow such knowledge even if it existed, given the surreptitious nature
inherent in drug offences as well as the draconian penalties that are
imposed on conviction. In any event, as we have already noted, wilful
blindness has, in any event, always been treated, in law, as actual
knowledge. In this regard, Yong CJ, in Koo Pui Fong, observed that the
concept of wilful blindness does not introduce a new state of mind to that
of knowing and that [i]t is simply a reformulation of actual knowledge
([103] supra at [14]); the learned Chief Justice then proceeded to observe as
follows (see id):
It seems to me that it is wholly in keeping with common sense and the
law to say that an accused knew of certain facts if he deliberately closed
his eyes to the circumstances, his wilful blindness being evidence from
which knowledge may be inferred. Thus I fully agree with the following
passage of Lord Bridge in Westminster City Council v Croyalgrange Ltd
(1986) 83 Cr App R 155 at 164:
it is always open to the tribunal of fact, when knowledge on
the part of a defendant is required to be proved, to base a finding
of knowledge on evidence that the defendant had deliberately
shut his eyes to the obvious or refrained from inquiry because he
suspected the truth but did not want to have his suspicion
confirmed.
105 Yong CJ did then state thus ([103] supra at [15]):
But this is different from saying that wilful blindness should be
automatically equated with knowledge. Hence, if the respondent
suspected that PW1 was an illegal immigrant but deliberately shut her
eyes to the circumstances, that in itself is strictly speaking not an
alternative to knowing that PW1 had entered the country illegally,
although it would be fair and almost irresistible to infer that the
respondent had the relevant knowledge. Despite the distinction, the
practical effect it seems, would usually be the same but the difference
should be borne in mind so as not to confuse the concept of wilful
blindness as being a separate state of mind which is sufficient to form
an alternative to the requirement of knowledge.
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44 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
106 Given the practical reality that a finding of actual knowledge is likely
to be rare, we turn, now to what, as we have just mentioned, is the legal
equivalent of actual knowledge, viz, the doctrine of wilful blindness.
107 Various criteria have been laid down in the context of the doctrine of
wilful blindness. Although many deal with cases from a commercial
perspective, the general principles and reasoning stated therein are
completely on point.
108 For example, Goddard J (as he then was), in the English decision of
Evans v Dell (1937) 53 TLR 310, referred (in the context of the provisions of
the UK Road Traffic Act 1930 (c 34) (as amended)) to the concept of
shutting ones eyes to the obvious (see at 313). And, as far back as 1877,
Lord Blackburn observed, in the House of Lords decision of Jones v Gordon
(1877) 2 App Cas 616, thus (at 629):
If he was (if I may use the phrase) honestly blundering and careless,
and so took a bill of exchange or a bank-note when he ought not to
have taken it, still he would be entitled to recover. But if the facts and
circumstances are such that the jury, or whoever has to try the question,
came to the conclusion that he was not honestly blundering and careless,
but that he must have had a suspicion that there was something wrong,
and that he refrained from asking questions, not because he was an
honest blunderer or a stupid man, but because he thought in his own
secret mind I suspect there is something wrong, and if I ask questions
and make farther inquiry, it will no longer be my suspecting it, but my
knowing it, and then I shall not be able to recover I think that is
dishonesty. [emphasis added]
109 In a similar vein, Lord Esher MR, distinguishing between the
equitable doctrine of constructive notice on the one hand and that of actual
knowledge on the other, observed thus in Brunton ([104] supra at 707708):
The doctrine of constructive notice is wholly equitable; it is not known
to the common law. There is an inference of fact known to common
lawyers which comes somewhat near to it. When a man has statements
made to him, or has knowledge of facts, which do not expressly tell him
of something which is against him, and he abstains from making
further inquiry because he knows what the result would be or, as the
phrase is, he wilfully shuts his eyes then judges are in the habit of
telling juries that they may infer that he did know what was against him.
It is an inference of fact drawn because you cannot look into a mans
mind, but you can infer from his conduct whether he is speaking truly or
not when he says that he did not know of particular facts. There is no
question of constructive notice or constructive knowledge involved in
that inference; it is actual knowledge which is inferred. [emphasis
added]
110 Turning to more modern case law, in the English Court of Appeal
decision of Compania Maritima San Basilo S A v Oceanus Mutual
Underwriting Association (Bermuda) Ltd [1977] QB 49 (Oceanus),
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[2008] 1SLR(R) Tan Kiam Peng v PP 45
Lord Denning MR observed (in the context of marine insurance) thus
(at 68):
To disentitle the shipowner, he must, I think, have knowledge not only
of the facts constituting the unseaworthiness, but also knowledge that
those facts rendered the ship unseaworthy, that is, not reasonably fit to
encounter the ordinary perils of the sea. And, when I speak of
knowledge, I mean not only positive knowledge, but also the sort of
knowledge expressed in the phrase turning a blind eye. If a man,
suspicious of the truth, turns a blind eye to it, and refrains from inquiry
so that he should not know it for certain then he is to be regarded as
knowing the truth. This turning a blind eye is far more blameworthy
than mere negligence. Negligence in not knowing the truth is not
equivalent to knowledge of it. [emphasis added]
Roskill LJ (as he then was) agreed with Lord Denning MR (see id at 76):
But like Lord Denning M.R., I would emphasise that knowledge does
not only mean positive knowledge, but includes that type of knowledge
which is expressed in the phrase turning a blind eye. If the facts
amounting to unseaworthiness are there staring the accused in the face
so that he must, had he thought of it, have realised their implication
upon the seaworthiness of his ship, he cannot escape from being held
privy to that unseaworthiness by blindly or blandly ignoring those facts
or by refraining from asking relevant questions regarding them in the
hope that by his lack of inquiry he will not know for certain that which
any inquiry must have made plain beyond possibility of doubt.
[emphasis added]
And, in the same case, Geoffrey Lane LJ (as he then was) stated (id at 81):
Knowledge of what? Again the subsection is clear. It says
unseaworthiness, not facts which in the upshot prove to amount to
unseaworthiness. Accordingly it seems clear to me that if this matter
were res integra, the section would mean that the assured only loses his
cover if he has consented to or concurred in the ship going to sea when
he knew or believed that it was in an unseaworthy condition. I add the
word believed to cover the man who deliberately turns a blind eye to
what he believes to be true in order to avoid obtaining certain knowledge
of the truth. [emphasis added]
111 An even more recent decision is that of the House of Lords in
Manifest Shipping Co Ltd v Uni-Polaris Insurance Co Ltd [2003] 1 AC 469
(another decision in the context of marine insurance) (Manifest
Shipping). In this case, wilful blindness is succinctly encapsulated within
the phrase blind-eye knowledge. For example, Lord Clyde, referring to this
phrase, then proceeds to elaborate thus (at [3]):
Blind-eye knowledge in my judgment requires a conscious reason for
blinding the eye. There must be at least a suspicion of a truth about
which you do not want to know and which you refuse to investigate.
[emphasis added]
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46 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
112 Lord Hobhouse of Woodborough, after referring to the various views
expressed in Oceanus, opined thus (at [25]):
All these formulations reject the suggestion that even gross negligence
will suffice. The use of the word suspicion and belief are indicative
of the strength of the suspicion that is required. But perhaps the most
helpful guide is to be found in what was said by Roskill LJ and Geoffrey
Lane LJ about the reason for refraining from inquiry in the hope
that by his lack of inquiry he will not know for certain in order to
avoid obtaining certain knowledge of the truth. It is probable that
Lord Denning MR was saying the same thing when he used the phrase
so that he should not know it for certain. The illuminating question
therefore becomes why did he not inquire?. If the judge is satisfied that
it was because he did not want to know for certain, then a finding of
privity should be made. If, on the other hand, he did not enquire because
he was too lazy or he was grossly negligent or believed that there was
nothing wrong, then privity has not been made out. An ambiguity has
arisen from the use by Roskill LJ of the phrase had he thought of it.
This suggests that the test may be objective. If so, that is not correct.
The test is subjective: Did the assured have direct knowledge of the
unseaworthiness or an actual state of mind which the law treats as
equivalent to such knowledge? [emphasis added]
113 Lord Scott of Foscote observed thus (at [112]):
Blind-eye knowledge approximates to knowledge. Nelson at the
battle of Copenhagen made a deliberate decision to place the telescope
to his blind eye in order to avoid seeing what he knew he would see if
he placed it to his good eye. It is, I think, common ground and if it is
not, it should be that an imputation of blind-eye knowledge requires
an amalgam of suspicion that certain facts may exist and a decision to
refrain from taking any step to confirm their existence. [emphasis
added]
This is an obvious reference to what is commonly known as Nelsonian
blindness (for further background, see Michael P Furmston, Some
Themes and Thoughts (2005) 17 SAcLJ 141 at 145147, where it is also
suggested that the account of Nelson placing the telescope to his blind eye
was an embellishment (see also per Peter Gibson J in Baden (at [101]
above)). The learned law lord also observed, a little later on in his judgment,
as follows (at [116]):
In summary, blind-eye knowledge requires, in my opinion, a suspicion
that the relevant facts do exist and a deliberate decision to avoid
confirming that they exist. But a warning should be sounded. Suspicion
is a word that can be used to describe a state-of-mind that may, at one
extreme, be no more than a vague feeling of unease and, at the other
extreme, reflect a firm belief in the existence of the relevant facts. In my
opinion, in order for there to be blind-eye knowledge, the suspicion must
be firmly grounded and targeted on specific facts. The deliberate decision
must be a decision to avoid obtaining confirmation of facts in whose
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[2008] 1SLR(R) Tan Kiam Peng v PP 47
existence the individual has good reason to believe. To allow blind-eye
knowledge to be constituted by a decision not to enquire into an
untargeted or speculative suspicion would be to allow negligence, albeit
gross, to be the basis of a finding of privity. That, in my opinion, is not
warranted by section 39(5) [of the UK Marine Insurance Act 1906 (c
41)]. [emphasis added]
114 Indeed, the views of both Lord Hobhouse and Lord Scott in Manifest
Shipping were expressly referred to by Lord Hoffmann in Twinsectra ([102]
supra at [22]).
115 Numerous cases in the criminal sphere adopt the same principles as
well (see, for example, the English Divisional Court decision of Roper ([104]
supra) and the English Court of Appeal decisions of R v Leslie George
Griffiths (1974) 60 Cr App R 14 and Westminster City Council v
Croyalgrange Ltd [1985] 1 All ER 740 (Westminster City Council)).
116 In Roper ([104] supra), although the court arrived at its decision on a
comparatively narrow ground to the effect that the court below had taken
into account inadmissible evidence and that the defendants appeal had
therefore to be allowed, Devlin J (as he then was) nevertheless proceeded to
make the very pertinent observations, which merit quotation in full, as
follows (at 288289):
There are, I think, three degrees of knowledge which it may be relevant
to consider in case of this kind. The first is actual knowledge, which the
justices may find because they infer it from the nature of the act done,
for no man can prove the state of another man mind; and they may
find it even if the defendant gives evidence to the contrary. They may
say, We do not believe him; we think that that was his state of mind.
They may feel that the evidence falls short of that, and if they do they
have then to consider what might be described as knowledge of the
second degree; whether the defendant was, as it has been called, shutting
his eyes to an obvious means of knowledge. Various expressions have
been used to describe that state of mind. I do not think it necessary to
look further, certainly not in cases of this type, than the phrase which
Lord Hewart, C.J., used in a case under this section, Evans v. Dell
((1937) 53 The Times L.R. 310), where he said (at p. 313): the
respondent deliberately refrained from making inquiries the results of
which he might not care to have.
The third kind of knowledge is what is generally known in the law as
constructive knowledge: it is what is encompassed by the words ought
to have known in the phrase knew or ought to have known. It does not
mean actual knowledge at all; it means that the defendant had in effect
the means of knowledge. When, therefore, the case of the prosecution
is that the defendant fails to make what they think were reasonable
inquiries it is, I think, incumbent on them to make it plain which of the
two things they are saying. There is a vast distinction between a state of
mind which consists of deliberately refraining from making inquiries, the
result of which the person does not care to have, and a state of mind
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48 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
which is merely neglecting to make such inquiries as a reasonable and
prudent person would make. If that distinction is kept well in mind I
think that justices will have less difficulty than this case appears to
show they have had in determining what is the true position. The case
of shutting ones eyes is actual knowledge in the eyes of the law; the case
of merely neglecting to make inquiries is not knowledge at all it comes
within the legal conception of constructive knowledge, a conception
which, generally speaking, has no place in the criminal law.
[emphasis added]
The above observations quoted at length because, as we shall see below, of
their signal importance are instructive. Although the learned judge spoke
of three degrees of knowledge, there are, in point of fact, only two distinct
categories, viz, actual knowledge and constructive knowledge, respectively.
The former, however, comprises two sub-categories first, actual
knowledge in (for want of a better way of putting it) an actual sense and,
secondly, actual knowledge in the form of wilful blindness. And, as Devlin J
aptly put it, the other main category of knowledge, viz, constructive
knowledge has no place in the criminal law. However, as we shall see
below (especially at [133]), the line between actual and constructive
knowledge is not, owing to the very factual nature of the inquiry, always
that clear.
117 The views of Devlin J in Roper (quoted in the preceding paragraph)
were in fact endorsed by the English Court of Appeal in Westminster City
Council ([115] supra). Robert Goff LJ (as he then was) observed thus (at
744):
It is well established that, in cases where knowledge is required,
knowledge may be proved not only by showing actual knowledge, but
also by showing that the defendant in question has deliberately shut his
eyes to obvious means of knowledge or deliberately refrained from
making inquiries, the results of which he might not care to know. We
were referred, very helpfully, by counsel for the respondents to the
judgment of Devlin J in Roper v Taylors Central Garages (Exeter) Ltd
[1951] 2 TLR 284 at 288, in which in the course of his judgment he
reaffirmed that proposition, and treated deliberately shutting ones
eyes to obvious means of knowledge as being equivalent to actual
knowledge. [emphasis added]
118 More importantly, perhaps, Roper was also endorsed in the Singapore
High Court decision of Koo Pui Fong, where Yong Pung How CJ observed
thus (at [20]):
[T]here is a vast difference between a state of mind which consists of
deliberately shutting the eyes to the obvious, the result of which a
person does not care to have, and a state of mind which is merely
neglecting to make inquiries as a reasonable and prudent man would
make. The latter, also known as constructive knowledge, is not
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[2008] 1SLR(R) Tan Kiam Peng v PP 49
knowledge at all: see Roper v Taylors Central Garages (Exeter) Ltd
[1951] 2 TLR 284 at 289.
119 Finally, the UK Law Commission, in its working paper entitled
Codification of the Criminal Law, General Principles The Mental Element
in Crime (Working Paper No 31, 1970), described its conception of wilful
blindness in two alternatives, as follows:
KNOWLEDGE
[emphasis added]
120 The UK Law Commission itself subsequently expressed a preference
for the first alternative set out in the preceding paragraph in the Law
Commission Report already referred to above ([34] supra at paras 4749;
though cf at [127] below).
121 The doctrine of wilful blindness is, in fact, not a novel one in the
Singapore context. It has, in fact, been applied in many decisions in the
context of the operation of the Act itself: see, for example, the Singapore
Court of Appeal decisions of Chan Chi Pun ([37] supra at [20]); PP v
Khampali Suchart [1996] SGCA 38 (Khampali Suchart); Chou Kooi Pang
([37] supra at [20]); Wong Soon Lee ([60] supra at [45]; see also above at
[76]); Zulfikar bin Mustaffah v PP [2001] 1 SLR(R) 181; Yeoh Aik Wei v PP
([60] supra); and Tay Kah Tiang ([104] supra at [34], although it was in fact
proved that the accused had actual knowledge in any event); the Malaysian
Court of Appeal decision of Roslan bin Sabu @ Omar v Pendakwa Raya
[2006] 4 AMR 772; the Singapore High Court decisions of Koo Pui Fong
([104] supra); PP v Mohamed Faizi bin Abdul Rahim [1998] SGHC 335
(affirmed in Mohamed Faizi bin Abdul Rahim v PP [1999] SGCA 14); the
Malaysian High Court decision of Public Prosecutor v Tan Kok An ([104]
supra at 100101); as well as the Singapore District Court decision of PP v
Tseng Yue-Wey [2003] SGDC 288 at [32]. Indeed, even where the doctrine
is not expressly referred to, it is clear that it has, in substance, been applied:
see, for example, the Singapore Court of Appeal decisions of Kong Weng
Chong v PP [1993] 3 SLR(R) 453 (Kong Weng Chong); Ubaka Chris
Chinenye v PP [1994] 3 SLR(R) 401; Lee Yuan Kwang v PP [1995] 1 SLR(R)
778 (Lee Yuan Kwang); Cheng Heng Lee ([37] supra); and Abdul Rauuf
([60] supra); as well as the Singapore High Court decision of Ko Mun
Cheung ([76] supra)). The doctrine of wilful blindness was also emphasised
(3) A PERSON KNOWS OF CIRCUMSTANCES
NOT ONLY WHEN HE KNOWS THEY EXIST,
BUT ALSO WHEN
First
alternative
HE HAS NO SUBSTANTIAL DOUBT THAT
THEY EXIST.
Second
alternative
HE KNOWS THAT THEY PROBABLY EXIST.
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50 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
by Yong Pung How CJ in the Singapore Court of Appeal decision of PP v
Hla Win [1995] 2 SLR(R) 104. Although the learned Chief Justice dissented
in that case, this was due to a difference in view from the majority vis--vis
the facts of that particular case. Indeed, this difference in view only serves to
underscore the point (made below, especially at [123] and [125]) that the
precise factual matrix is of the first importance. In that particular case, the
majority of the court in fact found that the accused had managed to rebut
the statutory presumptions (reference may also be made to Khampali
Suchart (supra), where the accused was held not to have been wilfully blind
to the contents of the bag concerned).
122 It is appropriate at this point to draw the various threads with respect
to the doctrine of wilful blindness together. Indeed, specific central
principles, in our view, emerge from the relevant case law, as follows.
123 The first is that wilful blindness is treated, in law, as being the
equivalent of actual knowledge (see above at [106] as well as Koo Pui Fong
(see at [104] above); Roper (see at [116] above); Leslie George Griffiths ([115]
supra at 18); and Westminster City Council ([115] supra at 744)). Indeed, we
are of the view that, given that both actual knowledge as well as wilful
blindness are, more often than not, inferred from the facts and
circumstances of the case, the line, in practice, between the two is a fine one
and may, on occasion at least, even be blurred. However, it bears repeating
that wilful blindness is not opposed to actual knowledge. Indeed, the
suggestion that this was the case at the trial court stage in Tochi ([35] supra)
was swiftly rejected by the Court of Appeal. Choo Han Teck J, who
delivered the judgment of the court, observed thus (at [6]):
The presumption of knowledge was therefore not rebutted, and all that
remained was to determine whether the act of importing the drugs was
proved. However, a statement in the trial judges grounds requires
clarification. At [48], the trial judge stated, in what appeared to us as an
emphasis to his rejection of the first appellants evidence:
I found he had wilfully turned a blind eye on the contents of the
capsules because he was tempted by the US$2000, which was a
large sum to him. Consequently, even if he may not have
actual knowledge that he was carrying diamorphine, his
ignorance did not exculpate him [emphasis added].
That passage creates an impression that there is a legal duty not to
turn a blind eye. It would thus create a wrong assumption that there
was some sort of positive legal duty, meaning that the first appellant
was bound in law to inspect and determine what he was carrying, and
that consequentially, if he did not do so, he would be found liable on
account of that failure or omission. The Act does not prescribe any such
duty. All that the Act does (under s 18), is to provide the presumptions
of possession and knowledge, and thus the duty of rebutting the
presumptions lay with the accused. There could be various reasons why
a court might not believe the accused person, or find that he had not
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[2008] 1SLR(R) Tan Kiam Peng v PP 51
rebutted the presumptions. The fact that he made no attempt to check
what he was carrying could be one such reason. Whether the court
would believe a denial of knowledge of the articles in the accused
persons possession (made with or without explanation or reasons)
would depend on the circumstances of the individual case. The trial
judge then referred to Yeo Choon Huat v PP [1997] 3 SLR(R) 450 at
[22]:
[I]gnorance is a defence only when there is no reason for
suspicion and no right and opportunity of examination
The above passage, however, was from the judgment in Ubaka Chris
Chinenye v PP [1994] 3 SLR(R) 401 and cited with approval by both the
minority judgment in PP v Hla Win [1995] 2 SLR(R) 104, as well as in
the unanimous judgment in Yeo Choon Huat v PP. It is also pertinent
that the same coram sat in both cases (Yeo Choon Huat v PP and PP v
Hla Win). It will be gleaned from these cases that the true principle is
that, ultimately, a failure to inspect may strongly disincline a court
from believing an absence of knowledge defence. Therefore, to say, as
in this case, that the first appellant thought it was chocolates was
another way of saying he did not know that he was carrying drugs.
Given the evidence, including the evidence that the first appellant did
not inspect the articles when he could have done so (the turning of the
blind eye), the court was entitled to find that the presumption had not
been rebutted.
[emphasis added in bold italics]
124 What is clear from the above observations is that the accused is under
no legal obligation not to turn a blind eye. However, if he does in fact turn a
blind eye, that could, on the facts, be taken to be wilful blindness on his
part. If so, this would be tantamount to actual knowledge in law, and the
accused would have failed to have rebutted the presumption of knowledge
under s 18(2) of the Act. The above observations are important inasmuch as
they clarify what might otherwise have been a misunderstanding of some
observations expressed at first instance in Tochi. In particular, in PP v
Iwuchukwu Amara Tochi [2005] SGHC 233, the learned trial judge had held
(at [42]) that there had been no direct evidence that [the first accused]
knew the capsules contained diamorphine [emphasis added]. Reading this
observation in context, it was clear that the learned trial judge had made a
finding that the first accused did not possess actual knowledge that he was
in possession of the drug concerned. However, it was crystal clear that he
had nevertheless found that the first accused had what is, in law, the
equivalent of actual knowledge as he (the first accused) had clearly been
guilty of wilful blindness on the objective facts before the court; as the
learned trial judge observed (at [48]):
I found that he [the first accused] had wilfully turned a blind eye on the
contents of the capsules because he was tempted by the US$2000,
which was a large sum to him. When Smith, who had befriended him
and had appeared to help him get out of Pakistan, also offered him the
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52 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
US$2000, he did not want to ask any questions or check the capsules
himself. Consequently, even if he may not have actual knowledge that
he was carrying diamorphine, his ignorance did not exculpate him
because it is well established that:
[I]gnorance is a defence only when there is no reason for
suspicion and no right and opportunity of examination
Yeo Choon Huat v PP [1997] 3 SLR(R) 450 at [22] and his defence
cannot stand. He was therefore found guilty and convicted on the
charge he faced.
[emphasis added]
125 The second central principle is that suspicion is legally sufficient to
ground a finding of wilful blindness provided the relevant factual matrix
warrants such a finding and the accused deliberately decides to turn a blind
eye. However, that suspicion must, as Lord Scott perceptively points out in
Manifest Shipping (see at [113] above), be firmly grounded and targeted on
specific facts. Mere untargeted or speculative suspicion is insufficient
(see also Hor ([75] supra) at 73). A decision in this last-mentioned instance
not to make further inquiries is, as the learned law lord correctly points out,
tantamount to negligence, perhaps even gross negligence, and is as such
insufficient to constitute a basis for a finding of wilful blindness. As
Lord Scott aptly put it (see at [113] above), [s]uspicion is a word that can
be used to describe a state-of-mind that may, at one extreme, be no more
than a vague feeling of unease and, at the other extreme, reflect a firm belief
in the existence of the relevant facts. It is important to note that the
(unacceptable) negligence which the Judge referred to in the court below
relates to the level of suspicion required before a decision not to make
further inquiries will be considered to constitute wilful blindness. It is
equally if not more important to emphasise that the Judge was therefore
not stating that suspicion per se would not be sufficient to ground a finding
of wilful blindness. On the contrary, suspicion is a central as well as integral
part of the entire doctrine of wilful blindness. However, the caveat is that a
low level of suspicion premised on a factual matrix that would not lead a
person to make further inquiries would be insufficient to ground a finding
of wilful blindness where the person concerned did not in fact make further
inquiries. What is of vital significance, in our view, is the substance of the
matter which (in turn) depends heavily upon the precise facts before the
court. It is equally important to note that in order for wilful blindness to be
established, the appropriate level of suspicion (as just discussed) is a
necessary, but not sufficient, condition, inasmuch as that level of suspicion
must then lead to a refusal to investigate further, thus resulting in blind eye
knowledge (see also the second quotation from the article by Wasik &
Thompson at [127] below).
126 That having been said, the requirement of suspicion is nevertheless a
vital (and, indeed, threshold) one. So, for example, if the accused makes
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[2008] 1SLR(R) Tan Kiam Peng v PP 53
merely token inquiries because he suspects that making more substantive
inquiries might lead him to the truth which he does not want to know, that
is wilful blindness. If the factual matrix was such that the accused ought to
have been suspicious, the court must then consider the accuseds reasons
for not making further inquiries. We will come to this point below but it
suffices to state at this juncture that a court would be well justified in
thinking that the reason why an accused refused to make further inquiries
may be because he or she was virtually certain that if further inquiries were
made, his or her suspicions would be confirmed. In such a situation, the
level of suspicion is, in fact, quite the opposite of the very first scenario
referred to (in the preceding paragraph), and is one where a person in the
accuseds shoes ought to make further inquiries and the failure to do so
would therefore constitute wilful blindness. As already emphasised above,
what is token and what is substantive (in so far as the making of further
inquiries is concerned) is, of course, a matter of fact (and see at [129][132]
below for brief discussions as well as corresponding analyses). The
propositions canvassed in the present paragraph are of fundamental
importance and will (as we shall see) figure prominently in the analysis of
the factual matrix in the present proceedings in so far as the doctrine of
wilful blindness is concerned.
127 We would venture to state a third central principle. Whilst
Prof Glanville Williams has correctly drawn a clear distinction between
wilful blindness on the one hand and recklessness on the other (see
Glanville Williams, Textbook of Criminal Law (Stevens & Sons, 2nd Ed,
1983) at pp 125126), this distinction must be properly understood in its
proper context. To elaborate, it is clear that wilful blindness, being (as we
have seen) the equivalent of actual knowledge, is distinct from recklessness
which, theoretically at least, falls short of actual knowledge. Indeed, wilful
blindness necessarily entails an element of deliberate action inasmuch as to
the extent that the person concerned has a clear suspicion that something is
amiss but then embarks on a deliberate decision not to make further
inquiries in order to avoid confirming what the actual situation is, such a
decision is necessarily a deliberate one. Looked at in this light, wilful
blindness and recklessness are, ex hypothesi, incompatible with each other.
It is imperative, in order to avoid any unnecessary confusion, that we
emphasise, once again, that wilful blindness is a combination of suspicion
coupled with a deliberate decision not to make further inquiries, whereas the
recklessness that has been referred to by Prof Williams refers to
recklessness in terms of the accuseds conduct in the context of
circumstances which would not otherwise have aroused suspicion on the part
of the accused. We think that it is important to reiterate this point because
it is possible, on another interpretation, to argue that the decision by the
accused not to make further inquiries when faced with suspicious
circumstances may be characterised as reckless conduct. We do not agree
with such an argument and characterisation. Such conduct is wilful
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54 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
blindness that entails a deliberate decision not to make further inquiries
when faced with suspicious circumstances. Semantical confusion must be
avoided, especially when an accuseds life or liberty is at stake. Indeed, as
Prof Williams himself put it (again in his textbook, supra, at p 125):
[The doctrine of wilful blindness] is meant to deal with those whose
philosophy is: Where ignorance is bliss, tis folly to be wise. To argue
away inconvenient truths is a human failing. If a person deliberately
shuts his eyes to the obvious, because he doesnt want to know, he
is taken to know. [emphasis added]
The following observations in a leading article are also pertinent (see
MWasik & MP Thompson, Turning A Blind Eye as Constituting Mens
Rea (1981) 32 NILQ 328 at 330331):
[W]ilful blindness is more than non-coincidence: it is the
construction of a greater mental element than D [the accused] actually
had, by virtue of Ds own fault in closing his eyes. The fault which is
seen to justify this is provided by Ds advertence to the particular fact,
prior to his deliberately turning a blind eye. It would seem that strict
subjective principles of criminal liability are modified, though not
overridden, in the case of liability imposed for wilful blindness.
[emphasis in original]
And, even more to the point, the same writers observe thus (id at 335):
It may well be the case that whilst suspicion alone is not strong
enough to found liability, suspicion plus deliberately refraining from
finding out the truth will be enough, or ought to be enough, because of
Ds fault in turning a blind eye. [emphasis added]
In this regard, the following observation by Stephenson LJ in the English
Court of Appeal decision of R v Keith Ian Thomas (1976) 63 Cr App R 65 at
69 is also helpful:
Suspicion is not knowledge, but knowledge may be inferred from
shutting ones eyes to suspicious circumstances
Finally, it is important to note that the judgment in the court below is, in
large part, consistent with the propositions just made. For example, the
passage the Judge cites (see GD at [24]) from Prof Andrew Ashworths
book, Principles of Criminal Law (Oxford University Press, 3rd Ed, 1999) at
pp 196197, when read closely, confirms the central importance of the
concept of suspicion. It is also interesting to note that where the phrase
virtual certainty is used, it is in fact an alternative instance of the highest
possible form of suspicion; indeed, this particular alternative, in our view,
borders on if not actually epitomises actual knowledge rather than
wilful blindness (see also, especially, per Yong CJ in Koo Pui Fong, set out at
[103] above; and cf at [119][120] above). At this point, the distinction
between actual knowledge (in its purest form) and wilful blindness would
(unjustifiably, wrongfully, and in substance) be erased. In the same vein, the
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[2008] 1SLR(R) Tan Kiam Peng v PP 55
reference by Prof Williams in his work to the phrase virtual certainty
(also cited by the Judge in GD at [25]) should be given the same meaning.
As just mentioned, any other interpretation would be to equate, in effect,
actual knowledge (in its purest form) with wilful blindness. Although the
latter is the legal equivalent of the former, they are, as we have seen in the
analysis above, not identical concepts. The Judge also cites (see GD at [26])
Prof Hors views ([37] supra), but to the extent that the learned author
eschews the concept of suspicion in the context of wilful blindness
altogether, that view is, with respect, erroneous (a similar comment may be
made of the passage cited by the Judge in his GD at [29]). The preferable
view, however, is to interpret the passage cited as referring to various levels
of suspicion (as to which see above at [125]).
128 Finally, a fourth central principle is that whether or not a
presumption (here, of knowledge) under the Act is rebutted (on a balance of
probabilities (see above at [60])) depends, in the final analysis, on the
precise factual matrix concerned. As Choo Han Teck J put it in Tochi ([35]
supra at [9]):
Rebutting the statutory presumption is a matter of fact, and is no
different from any other fact-finding exercise save that the law requires
that a person rebutting a statutory presumption does so on a balance of
probabilities. It is not sufficient for him merely to raise a reasonable
doubt.
Reference may also be made to Koo Pui Fong ([103] supra, especially
at [22]).
129 Indeed, in the context of the doctrine of wilful blindness, while some
illustrations may be helpful, it is nevertheless imperative to note that, owing
to the intensely factual nature of the inquiry, they cannot be representative,
let alone comprehensive. Generally speaking, if an accused has had his or
her suspicions aroused in the manner set out at [125] above, the accused
can still rebut the relevant presumption under s 18 of the Act by
demonstrating that he or she took reasonable steps to investigate by making
further inquiries that were appropriate to the circumstances. What these
circumstances will be will obviously vary from case to case, thus
underscoring (once again) the intensely factual nature of the entire process.
Nevertheless, one obvious situation is where the accused takes no steps
whatsoever to investigate his or her suspicions. The court would naturally
find that there was wilful blindness in such a situation. Where, for example,
an accused is given a wrapped package and is told that it contains
counterfeit currency when it actually contains controlled drugs, we would
have thought that, absent unusual circumstances, the accused should at
least ask to actually view what is in the package. Even a query by the accused
coupled with a false assurance would, in our view, be generally insufficient
to obviate a finding of wilful blindness on the part of the accused under
such circumstances. Indeed, if an accused is told that the package contains
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56 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
counterfeit currency and the package is then opened to reveal that it
contains packets of what are obviously drugs, that ought then to prompt the
accused to make further inquiries. And, where, in fact, only token efforts
are made to investigate ones suspicions, this would be insufficient. But
might it not be argued that the accused in the example just given (relating to
a wrapped packaged) has done all that could reasonably have been done to
investigate further? Much will, of course, depend on the precise facts before
the court but it would appear, in principle, that merely asking and receiving
answers in situations such as that presently considered would be
insufficient simply because the accused concerned would certainly be given
false answers and assurances. Further, denials of knowledge by the accused
are also to be expected and must, in the circumstances, be (in the words of
the Judge in the court below) scrupulously analysed and warily assessed for
consistency and credibility (see GD at [11]). As the Judge aptly put it (see
ibid):
It is only too easy to disingenuously claim I did not know. Associated
with the plea of I did not know are often belated claims of I did not
inspect or I was told it was something else. These pleas are more
often than not flimsy fabrications of last resort without an atom of
credibility.
However, to the extent that the Judge later suggests that it would be wrong
to convict accused persons solely on the basis that they had failed to make
proper inquiries (see GD at [27]), we would respectfully disagree with such
a suggestion. His analysis to the effect that such an approach would equate
wilful blindness with mere negligence or recklessness fails, with respect, to
recognise that a key threshold element in the doctrine of wilful blindness
itself is that of suspicion followed by (and coupled with) a deliberate
decision not to make further investigations. To be sure, and as we have
emphasised above, the level of suspicion ought to be properly grounded
(see above at [125]), this being an intensely factual issue (see also the
acknowledgment by the Judge of the importance of this last-mentioned
point in GD at [31]). Wilful blindness cannot be equated with virtual
certainty for, as already explained above, this would be to equate wilful
blindness with actual knowledge in its purest form. The result would be to
erase the doctrine of wilful blindness from the legal landscape altogether.
That this is not what the Judge intended is evident, for example, from the
following observation where he maintains the distinction between actual
knowledge in its purest form on the one hand and wilful blindness on the
other (see GD at [28]; see also GD at [30]):
[T]he failure to inspect or inquire is relevant and pertinent only where,
together with the ambient circumstances of the case, they go towards
establishing either that the accused knew what he was carrying or was
wilfully blind to the obvious. [emphasis added]
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[2008] 1SLR(R) Tan Kiam Peng v PP 57
130 Situations such as that which exists on the facts of the present appeal
underscore this point since the accused already knows that he or she is
carrying controlled drugs and surely cannot rely merely on the fact that he
or she had asked for assurances that the controlled drugs concerned were
not of a nature which carried the death penalty. If the accused chooses to
take an enormous (indeed, deadly) risk and proceed without establishing
the true nature of the drugs he or she is carrying, that constitutes, in our
view, wilful blindness. To say that this is unfair to the accused concerned is
rather disingenuous, particularly in light of the fact that the countenancing
of false answers and assurances would be precisely to constitute a drug
pedlars charter, for accused persons who are willing to risk imprisonment
but not death (see also the observations of Lord Guest in Warner (at [87]
above)) thus undermining (in a crucial manner) the policy of the Act
itself. It is also clear that the accused has a real choice to decide not to
proceed if satisfactory answers are not forthcoming, especially where liberty
or even life is at stake. Indeed, the Judge himself also observed, in a similar
vein, thus (GD at [65]):
Tan [the appellant] is not a hapless victim caught in the web of
inevitable circumstances beyond his control. He had real choices.
While life may not have been kind to him, he was under no
compulsion to risk his life by committing an illicit act for meagre
returns. He has consciously chosen to run the legal gauntlet and to
leave everything to chance. Given the concatenation of circumstances,
Tans plaintive plea that I am just unlucky as this was my first time
doing it and I was caught is a tragic but futile one.
We pause to observe, however, that if the first interpretation vis--vis
s 18(2) of the Act is adopted (see [80] above), the accused would not be able
to make such arguments in the first instance at least on facts such as those
which obtain in the present appeal since, as noted above (at [94]), the
accused would know that he or she was in possession of a controlled drug in
the first instance. Indeed, even absent actual knowledge such as was
possessed by the appellant in the present case, in situations where the
accused is carrying packets of powder and/or tablets, the possibility of those
packets being controlled drugs is strong. Whether or not the accused is
guilty of wilful blindness would of course depend on the precise facts and
circumstances (these would include, for example, the quantity and weight
of the packets, as well as whether or not the accused was remunerated for
carrying the packets, although obviously no one factor would usually be
conclusive).
131 We also observe that much often turns on the credibility of the
witnesses (in particular, the accused), as was the situation in the present
appeal. For example, the accused might claim to have made inquiries but
this might be disbelieved by the court. Such a finding might well be
determinative of the case itself. The Judge in the court below says as much;
in his words (see GD at [36]):
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58 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
The plain words of s 18(2) of the MDA states that it is for an accused to
prove that he did not know the nature of the drug. That an accused
knows he is carrying a drug is only one aspect of the issue; he can still
be exonerated if he can show that he did not know its nature. As such,
it is still conceivably open to an accused carrying a drug to assert that
he did not know that he was carrying the particular type of drug which
was in fact found on him. His credibility alone forms the crux of the
matter in such cases. [emphasis in original]
The last sentence in the above quotation was emphasised in italics by the
Judge himself. It suggests that the credibility of the accused and that alone
should be the legal lodestar in situations such as that which obtains in the
present appeal (where the only issue is whether or not the accused knew the
specific nature of the controlled drug in question). However, the Judge does
then proceed to suggest that the entire process of inquiry is, in the final
analysis, a factual one (see GD at [37]). This last-mentioned proposition
appears to be the more reasonable approach to adopt although, as we have
observed above, the credibility of the accused will often be an extremely
important and, on occasion, vital factor.
132 However, as we have emphasised, the possible factual scenarios are far
too many to admit of blanket propositions and, hence, the decision of the
court in a given case will have to depend on the precise facts, the evidence
adduced as well as the credibility of the witnesses themselves (not least the
accused) (this was also, as we have seen in the preceding paragraph, the
apparent position ultimately adopted by the Judge in the court below). To
reiterate an obvious (but important) example, where the accused has had
the controlled drugs slipped into a bag without his or her knowledge, it is
clear that no offence under the Act would have been committed (see, once
again, the passage by Lord Parker CJ in Lockyer v Gibb (set out at [35]
above) as well as the GD at [12]). Where, to take another example, the
accused is asked by a close family member to carry a box containing
controlled drugs on the understanding that the box (wrapped up, say, in
ribbons) contains a cake which is to be delivered to another close relative,
there might be a strong case for arguing that the accused could not be said
to be wilfully blind because the circumstances ought not to have aroused his
or her suspicions, let alone entailed further investigation. Again, however,
much would (to reiterate an extremely important point) depend on the
precise facts, evidence as well as credibility of the witnesses (especially the
accused).
133 Given our views on actual knowledge as well as wilful blindness
(which is, in law, a form of actual knowledge), it is unnecessary, in our view,
to consider other forms of knowledge. In particular, and here we agree with
the Judge, it is inappropriate to include constructive knowledge as falling
within the ambit of s 18(2) of the Act. However, given the objective
approach that this (indeed, any) court must adopt as well as the very factual
nature of the inquiry itself, we should emphasise that there might be
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[2008] 1SLR(R) Tan Kiam Peng v PP 59
occasions when the line between actual and constructive knowledge might be
blurred (this may particularly be the case in so far as (in the nature of
things) the application of the doctrine of wilful blindness is concerned).
Indeed, as Scott LJ (as he then was) perceptively observed in the English
Court of Appeal decision of Polly Peck International plc v Nadir (No 2)
[1992] 4 All ER 769 (at 777):
The various categories of mental state identified in Badens case are not
rigid categories with clear and precise boundaries. One category may
merge imperceptibly into another. [emphasis added]
134 Nevertheless we accept that there is and ought to be a distinction,
in principle, between actual knowledge on the one hand and constructive
knowledge on the other. Looked at in this light, it would, in our view,
conduce towards clarity to consider the views on the various types of
knowledge considered in Baden ([101] supra). This is not, we hasten to add,
due to the fact that the concept of knowledge was displaced by that of
dishonesty in the context of the doctrine of knowing assistance vis--vis
constructive trusts (as noted briefly above at [102]; cf, though, Tjio ([102]
supra at 303) on the irreducible role of knowledge even in the context of the
ascertainment of dishonesty). The fact of the matter is that the views on the
various types of knowledge in Baden could nevertheless still furnish
guidance from the perspective of general principle. However, that having
been said, we are of the view, with respect, that the views expressed in
Baden do not really assist since, in our view, the doctrine of constructive
notice ought not to be imported, as it were, into s 18(2) of the Act. In the
circumstances, therefore, that part of Peter Gibson Js judgment in Baden
dealing with constructive notice is really irrelevant to the present appeal.
The only relevant part of that judgment pertains to actual knowledge. This
would include the first three categories enunciated by Peter Gibson J (see
[101] above, and per Knox J in the English High Court decision of Cowan
de Groot Properties Ltd v Eagle Trust plc [1991] BCLC 1045 at 1103). Even
so, it might be argued that the third category falls outside the ambit of the
doctrine of wilful blindness, and this appears to be the view adopted by
Peter Gibson J himself in Baden ([101] supra at [253]). However, it must be
borne in mind that the learned judge was utilising the terminology
concerned in the context of constructive trusts instead of with an eye
towards (as is the situation here) the criminal law in general and the Act in
particular. To this end, one will notice, for example (at [101] above), that
the learned judge equates the doctrine of wilful blindness with constructive
knowledge. However, as we have already pointed out above, the doctrine of
wilful blindness, far from being a form of constructive knowledge, is (in
law) a form of actual knowledge. This slight confusion in terminology
might also, with respect, have influenced Peter Gibson Js own
characterisation of the third category of knowledge in Baden. In any event,
we are of the view that there is no difference in substance between the
second and third categories of knowledge in Baden and would respectfully
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60 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
disagree with Peter Gibson J to the extent that he suggests otherwise (see
also MJ Brindle and R J A Hooley, Does Constructive Knowledge Make a
Constructive Trustee? (1987) 61 ALJ 281 at 289). Indeed, as the two
writers aptly observe, [u]nder category (3), [n]egligence is not
sufficient and [a]ctual or Nelsonian knowledge must be shown (see
Brindle & Hooley, supra, at 290).
135 In the light of the difficulties generated by an interpretation of Baden
as set out briefly in the preceding paragraph, the more helpful precedent, in
our view, is the decision in Roper ([104] supra), where a clear and practical
distinction is drawn (as we have seen) between actual knowledge on the one
hand and constructive knowledge on the other with the former
encompassing the doctrine of wilful blindness as well (see generally above
at [116]). This is, of course, consistent with the view of actual knowledge
which we have adopted in the present judgment. However, such an
approach would appear to be at variance with that adopted by the
Singapore High Court in PP v Teo Ai Nee [1995] 1 SLR(R) 450 at [38][39],
where Peter Gibson Js views in Baden (at [101] above) were preferred to
those of Devlin J in Roper (see at [116] above). It should, nevertheless, be
noted that Yong Pung How CJ did, in PP v Teo Ai Nee, acknowledge that
that particular case related to the Copyright Act (Cap 63, 1988 Rev Ed, and
presently Cap 63, 2006 Rev Ed) (the Copyright Act) which (in turn)
concerned both civil and criminal provisions, instead of merely criminal
provisions which was the situation in both Roper as well as in the present
appeal. That is one salient point of distinction. Another and perhaps more
important point of distinction relates to the fact that the provisions
concerned (viz, ss 136(1)(b) and 136(2)(a) of the Copyright Act) contain
the phrase which he knows, or ought reasonably to know [emphasis
added], thus clearly (and expressly) importing (unlike s 18(2) of the Act) the
concept of constructive knowledge into those particular provisions (see also
GD at [23]). Further, Yong CJ was only of the view (at [39]) that Peter
Gibson Js views might be preferred to Devlin Js observations [emphasis
added]. However, to the extent the learned Chief Justice was of the view that
categories two to five in Baden (see at [101] above) were more appropriately
characterised as instances of constructive knowledge, we must, with the
greatest of respect, beg to differ for the reasons set out above (at [134]).
Conclusion
136 At this particular juncture, a summary of the applicable principles of
law would be appropriate.
137 First, although the statutory contexts under Warner ([30] supra) and
under the Act are different, the explication by the House of Lords in
Warner of the general concept of possession (which was adopted locally in
Tan Ah Tee ([49] supra) and a myriad of other Singapore decisions) is
helpful and, in fact, supports the first interpretation of s 18(2) of the Act to
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[2008] 1SLR(R) Tan Kiam Peng v PP 61
the effect that knowledge in s 18(2) is a reference to knowledge that the
drug concerned is a controlled drug.
138 Secondly, there is a second interpretation which states that the
reference to knowledge in s 18(2) is not only to a controlled drug but also to
the specific drug which it turns out the accused is in possession of. The
strongest arguments for this second interpretation are as follows. First,
there is the literal language of that provision. Secondly, because of the
possibility of harsh punishments (including the death penalty) being
imposed, even if it is argued that an ambiguity in the statutory language
exists, the fact of such ambiguity suggests that the benefit of the doubt
ought to be given to the accused. However, although the second
interpretation appears to us to be more persuasive, we express no
conclusive view in this particular appeal simply because this particular issue
was not argued fully before us.
139 Thirdly, whilst the concept of knowledge in s 18(2) of the Act entails
actual knowledge, the doctrine of wilful blindness should also be
emphasised and is also included within the concept of knowledge in s 18(2)
simply because wilful blindness is the legal equivalent of actual knowledge.
However, the reference, particularly in the court below, to the various
theoretical degrees of knowledge is, in our view, unhelpful and might even
have an adverse impact in the sphere of practical application. This brings us
to a closely related point.
140 In so far as the doctrine of wilful blindness is concerned, the evidence
required to be adduced by the accused to rebut the presumption of
knowledge of the nature of the controlled drug under s 18(2) of the Act is
by no means a mere formality, even though the standard required is the
civil standard (of proof on a balance of probabilities). Such an approach is
not only just and fair but is also consistent with the underlying policy of the
Act itself. However, we have also demonstrated that in situations where the
accused truly does not know the nature of the controlled drug in his or her
possession, it is clear that the accused will be able to rebut the presumption
of knowledge of the nature of the controlled drug under s 18(2) on a
balance of probabilities. This will be the situation where, for example, the
controlled drugs in question were slipped into a package the accused was
carrying without his or her knowledge (see also above at [35] and [132]), or
where the accused is otherwise devoid of actual knowledge and finds
himself or herself in a situation in which the facts and circumstances do not
give rise to that level of suspicion that would entail further investigation lest
a finding of wilful blindness results. All this, again, is consistent with the
underlying policy of the Act.
141 Fourthly, therefore (and still on the issue of knowledge in s 18(2) of
the Act), whilst general regard ought to be had to the concept of actual
knowledge (including the doctrine of wilful blindness), the main focus ought
always to be on the specific or particular factual matrix in the case at hand.
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62 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
The principal difficulty lies in the attempt to divine a universal legal norm
to comprehensively govern what is essentially and, at bottom, a factual
inquiry. This is not to state that, in certain areas of the law, such an
approach is inappropriate. However, in a situation such as the present, such
an approach is less than satisfactory simply because the focus is primarily
factual and (more importantly) the permutations of the factual matrices are
too numerous, varied and complex to admit of a perfect legal solution. It is,
of course, axiomatic that a universal legal norm is necessary. What,
however, should be eschewed is the attempt to formulate a universal legal
norm that purports to comprehensively govern the various (and variegated)
fact situations. This leads, as we shall see, to excessive refinements and fine
distinctions that hinder (rather than facilitate) the task at hand. Indeed, that
s 18(2) of the Act is formulated at a fairly high level of generality is an
acknowledgment of the danger just mentioned. In the circumstances, the
universal norm with respect to knowledge in s 18(2) is that it would
encompass actual knowledge in both its purest form as well as in the form
of wilful blindness and would apply to the specific factual matrix concerned
with the focus being, in the nature of things, on the latter.
142 Having set out the relevant legal principles, we now turn to apply, in
the context of the present appeal, these principles to what we have just
emphasised is the most important aspect of cases of this nature the factual
matrix.
Our decision
Introduction
143 The principal grounds of appeal centred on the various statements
made as well as (in the main) how these statements impacted on the state of
knowledge of the appellant in so far as s 18(2) of the Act was concerned.
The statements made by the appellant to Constable Phua and SI Ong
144 Counsel for the appellant, Mr Rengarajoo, argued that the statements
reproduced above at [12] and [15] were in fact exculpatory in nature and
that that was the reason why the appellant did not challenge them. It bears
repeating that although these statements were not reduced into writing,
they were adduced in evidence as part of the conversations between the
appellant on the one hand and Constable Phua and SI Ong, respectively, on
the other, and which (in turn) were subject to cross-examination.
145 The Judge in fact held that the procedural challenge tendered by the
appellant in so far as these statements were concerned was a mere
afterthought (see GD at [46]). Indeed, we note that the Judge had the
opportunity of assessing the credibility of the respective witnesses and there
is no reason why his finding in this regard should be overturned. We turn
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now to consider the other substantive arguments that were made in the
present appeal.
146 The issue that arose both in the court below as well as in the present
appeal centred on the legal effect of these statements.
147 It will be recalled that the statements contained references by the
appellant to the contents as number 3. Nevertheless, Mr Rengarajoos
argument was that the reference was not to heroin number 3 but, rather,
simply to number 3.
148 The Judge held, in fact, that the appellant, by [intimating]
unequivocally time and again that he knew that the drugs were called
number 3 knew full well that he was carrying heroin and his statements
indicating that the drugs were number 3 were not, by any stretch of the
imagination, benign references to the numerical digit three (see GD at
[52]).
149 It is also clear from the relevant testimony in the court below that
number 3 is in fact a reference, in street talk or parlance, to heroin of a
particular grade. The evidence revealed (and the Judge in fact so found) that
there was, in this context, neither a grade 1 or 2, although there might be a
grade 4. Indeed, the Judge himself was at pains to clarify the significance of
the phrase number 3, particularly as it is understood in its context (see
GD at [51]).
The following clarification from SI Ong is also instructive:
[emphasis added]
Further, whilst such clarification was also sought by the Judge of Insp Teng,
it is of equal importance in relation to the general point now being
considered in relation to Constable Phuas and SI Ongs oral statements. In
particular, Insp Teng clarified that there were different grades of heroin in
the (Singapore) market and that, as noted in the exchange below,
number 3 is one of the grades; and in response to a question from the
court as to what the other grades of heroin were, the following exchange is
instructive:
Court: Let me clarify the point once again for you and
then you can decide. Among drug users in
Singapore or among those who traffic drugs, when
they use the word number 3, does that mean
heroin?
Witness: Yes.
Court: And nothing else? No, number 3 means heroin;
it doesnt mean any other drug?
Witness: That is so.
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64 SINGAPORE LAW REPORTS (REISSUE) [2008] 1SLR(R)
[original emphasis in italics; emphasis added in bold italics]
In a similar vein, the following responses from ASP Herman (during
examination-in-chief by the prosecution counsel) are also instructive:
Court: Can I just clarify something with you, Insp Teng?
Witness: Yes, your Honour.
Court: He [the appellant] used the word, as you said, peh
hoon sar tong [sic], right?
Witness: Peh hoon sar ho.
Court: Sar ho. Now, what does sar ho mean? Because if
peh hoon already means heroin, why the sar ho?
Witness: Your Honour, because theres different grading of
heroin in the market, so you got different grading,
so number 3 is one of the grades.
Court: What are the other grades?
Witness: The common [sic] in Singapore would be grade
number 4 and grade number 3.
Court: And theres grade 1 and 2 as well?
Witness: Not--I havent encountered them, your Honour.