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Photography in Police Work

Photography is used in several ways in police work: 1. Identification of criminals, missing persons, and licenses through photos and fingerprints. 2. Communication through investigative reports, accident files, and transmission of photos using modern electro photography machines. 3. As evidence in crime scenes, accidents, homicides, suicides, and fires to improve details through magnification, contrast, or invisible radiation.

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Zac Garcia
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147 views2 pages

Photography in Police Work

Photography is used in several ways in police work: 1. Identification of criminals, missing persons, and licenses through photos and fingerprints. 2. Communication through investigative reports, accident files, and transmission of photos using modern electro photography machines. 3. As evidence in crime scenes, accidents, homicides, suicides, and fires to improve details through magnification, contrast, or invisible radiation.

Uploaded by

Zac Garcia
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Uses of photography in police work

1. Identification- this is very first use of photography in police work. it is used to identify
criminals, missing persons, lost property, licenses and the civilian or personnel
fingerprint identification.
2. 2. Communication and micro-film files- invetigative report files, accident files,
transmission of photos (wire photos) photographic supplements to reports with modern
day electro photography machines.
3. Evidence- Crime Scenes, traffic accidents, homicides , suicides, fires, objects of
evidence latent fingerprints, evidential traces can frequently be improved by contrast
control by magnification or by invisible radiation.
4. Offender detection- surveillance, burglar traps, confessions, re-enactments of crime.
5. Court Exhibits- Demonstration Enlargements, Individual photos, projection slides, motion
pictures.
6. Reproduction or Copying- Questionable checks and documents, evidential papers,
photographs, official records and notices.
7. Personnel Training- Photographs and films relating to police tactics, investigation
techniques, mob control and catastrophe situation.
8. Crime and Fire Prevention Hazard- Lectures, security clearance detection devices,
photos of hazardous fire conditions made when prevention inspections are made.
9. Public Relations- Film Pertaining to safety programs, juvenile delinquency, traffic
education, public cooperation and civil defense.

PRINCIPLES OF PHOTOGRAPHY
1. A photograph is the  mechanical result of photography.

2. To produce a photograph, light is needed aside from sensitized materials.

3. Lights reflected or radiated by a subject must reach the sensitized materials while all other
lights must be excluded.

4. The exclusion of all unwanted and unnecessary lights is achieved by placing the
sensitized  material inside the camera.

5. The amount of light on the sensitized material after exposure is not immediately visible to
the eyes.

6. To make the formed image visible, it must undergo the developing process.

7. The visual effect that results from the chemical processing is dependent on the quantity
and quality of the exposing light.

8. More light will yield an opaque or black shade on the sensitized material after
development

9. too little light will produce a transparent or white shade.


10. the varying shade of gray will finally form the complete image.

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