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Forensic photography


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Forensic photography

  2. 2. It is photographic documentation of evidence and specific details for presentation of an argument in court of law
  3. 3. Three types of photography overviews Mid range closeup
  4. 4. overviews Mid range close-up
  5. 5.  Secure the scene: In all forensic investigations, the first step is to secure the crime scene.  Evaluate conditions: Next, the photographer should evaluate the available light and weather conditions and adjust camera settings appropriately.
  6. 6. Shoot the scene:  The photographer should take photographs before anything is disturbed.  Many shots should be taken, from the entire scene.  A tripod, a level, and a small ruler should also be available for photography  Always use the designated safe route when moving through the scene. Avoid disturbing the scene
  7. 7.  When it is necessary to alter the scene, such as by placing placards or disassembling equipment, always take photographs of the scene before and after alteration, and with scale when appropriate.  Take a complete set of pictures, including overall (long-range), midrange and close-ups.  Date and time mode should be enable.  The series of shots should include victims (if present) to show locations, injuries and condition.
  8. 8.  Each piece of evidence should be photographed to illustrate where it was found. This establishes the relationships of the evidence to the victim, the victim to the room and so on.  These photographs should be taken from straight above or straight on at right angles, eliminating potential distance distortions.
  9. 9.  Re-‐shoot for new evidence: If investigators mark new evidence, the whole series of shots should be repeated, including all evidence shots.  Alternate light sources (ALS) – such as lasers, blue or green lights and colored filters that help detect processed latent fingerprints or other hidden evidence and illuminate for photographing  Remove the film or download the digital images and store in a secure location according to departmental regulations when photography is completed.
  10. 10.  Once working copies of all the photographs have been created, investigators can select images for analysis and enhancement. This is normally done by the photographer or, if available, within the audio/visual department in the laboratory
  11. 11.  Selected photographs of particular evidence or parts of a scene may need additional enhancement  This can be done within the department if the appropriate software is available or may be sent to a regional specialist. The most common enhancements include cropping, brightness and contrast adjustments and color processing  When submitted for courtroom use, the original photograph must be available for comparison and the technician or examiner must be able to show and describe any enhancements that were done, and why.