In Manggagawa ng Komunikasyon sa Pilipinas v.
National Labor Relations
Commission,[23] this Court held that:
      [A]ctual adversarial proceeding becomes necessary only for clarification
      or when there is a need to propound searching questions to unclear
      witnesses. This is a procedural right which the employee must, however,
      ask for it is not an inherent right, and summary proceedings may be
      conducted. This is to correct the common but mistaken perception that
      procedural due process entails lengthy oral arguments. Hearings in
      administrative proceedings and before quasi-judicial agencies are neither
      oratorical contests nor debating skirmishes where cross examination
      skills are displayed. Non-verbal devices such as written explanations,
      affidavits, positions papers or other pleadings can establish just as
      clearly and concisely aggrieved parties predicament or defense. What is
      essential is ample opportunity to be heard, meaning, every kind of
      assistance that management must accord the employee to prepare
      adequately for his defense.
      While this Court looks with disfavor on affidavits of desistance, still,
      its effect on the instant case cannot be ignored. Doromals Affidavit
      of Desistance includes an explicit admission that he fabricated the
      charges against Bungubung. Therefore, Doromals Affidavit of
      Desistance is an express repudiation of the material points alleged
      in his Complaint-Affidavit, and not a mere expression of his lack of
      interest to pursue his complaints against Bungubung. Since
      Doromal willfully and knowingly executed his Affidavit of
      Desistance, there being no showing that he was made to do so
      fraudulently or under duress, then it may be admitted and
      considered as evidence which considerably puts into question the
      probative value of the Affidavit-Complaint he executed earlier and
      he now repudiates.
In Montemayor v. Bundalian,[29] this Court laid down the following guidelines for
the judicial review of decisions rendered by administrative agencies in the exercise
of their quasi-judicial power:
     First, the burden is on the complainant to prove by substantial evidence
     the allegations in his complaint. Substantial evidence is more than a
     mere scintilla of evidence. It means such relevant evidence as a
     reasonable mind might accept as adequate to support a conclusion, even
     if other minds equally reasonable might conceivably opine otherwise.
     Second, in reviewing administrative decisions of the executive branch of
     the government, the findings of facts made therein are to be respected so
     long as they are supported by substantial evidence. Hence, it is not for
     the reviewing court to weigh the conflicting evidence, determine the
     credibility of witnesses, or otherwise substitute its judgment for that of
     the administrative agency with respect to the sufficiency of
     evidence. Third, administrative decisions in matters within the executive
     jurisdiction can only be set aside on proof of gross abuse of discretion,
     fraud, or error of law. These principles negate the power of the
     reviewing court to re-examine the sufficiency of the evidence in an
     administrative case as if originally instituted therein, and do not
     authorize the court to receive additional evidence that was not submitted
     to the administrative agency concerned.
     Bungubung is being charged with the administrative offense of Grave
Misconduct, which has been authoritatively defined in Amosco v. Judge
Magro[35] as:
     Misconduct in office has a definite and well-understood legal
     meaning. By uniform legal definition, it is a misconduct such as affects
     his performance of his duties as an officer and not such only as affects
     his character as a private individual. In such cases, it has been said at all
     times, it is necessary to separate the character of the man from the
     character of the officer x x x. It is settled that misconduct, misfeasance,
     or malfeasance warranting removal from office of an officer, must have
     direct relation to and be connected with the performance of official
     duties amounting either to maladministration or willful, intentional
     neglect and failure to discharge the duties of the office. x x x.