CFP Forensic Photographer Evidence Preservation & Analysis 2

Question 1

Why must the original digital image file be preserved unaltered after capture at a crime scene?

Accepted Answer

It serves as the primary evidence and baseline for authenticating any working copies

Answer

The original file is the primary evidence, and all analysis or enhancement must be performed on duplicates so authenticity can be verified against it.

Question 2

A forensic photographer arrives at a scene where bloodstain evidence is exposed to approaching rain. What is the most appropriate first action?

Accepted Answer

Photograph the evidence immediately in its original condition before it is altered or protected

Answer

Transient or fragile evidence must be photographed in its original, unaltered state before environmental conditions destroy it.

Question 3

What is the primary purpose of maintaining a photo log at a crime scene?

Accepted Answer

To document each exposure's details so the images can be authenticated and reconstructed later

Answer

A photo log records frame numbers, subjects, settings, and locations, supporting authentication and scene reconstruction in court.

Question 4

When photographing an impression in soil for later comparison analysis, the film or sensor plane should be positioned how?

Accepted Answer

Parallel to the impression to avoid perspective distortion

Answer

Keeping the sensor plane parallel to the impression prevents perspective distortion that would invalidate dimensional comparisons.

Question 5

Which practice violates proper chain of custody for digital images?

Accepted Answer

Deleting blurry or 'bad' frames from the memory card before download

Answer

Deleting any frames breaks the continuity of the record and invites allegations that exculpatory or unfavorable images were destroyed.

(CFP) Certified Forensic Photographer Practice Test

(CFP) Certified Forensic Photographer Practice Test

CFP Forensic Photographer Evidence Preservation & Analysis 2