CFP Advanced Techniques & Methods 2

Question 1

When photographing bloodstain patterns at a crime scene, which technique best preserves the spatial relationships between individual stains?

Accepted Answer

Aerial overview combined with measured grid reference markers

Answer

Aerial overview shots combined with a measured grid reference system preserve spatial relationships and allow accurate reconstruction of bloodstain pattern distribution.

Question 2

A forensic photographer encounters a shiny metallic evidence item that reflects glare. The most effective technique to reduce specular reflection is:

Accepted Answer

Use a polarizing filter and position the light at a low angle

Answer

A circular polarizing filter, combined with oblique lighting, reduces specular reflection off metallic surfaces without altering the evidence's apparent color.

Question 3

Which shutter speed technique is most appropriate when photographing a crime scene with flickering fluorescent lighting to avoid banding artifacts?

Accepted Answer

1/30s or 1/60s synchronized to the AC cycle frequency

Answer

Shutter speeds of 1/30s or 1/60s synchronize with the 60 Hz AC power cycle, eliminating the banding effect caused by fluorescent light flicker.

Question 4

When documenting tire track impressions in soft soil, which photographic sequence is considered best practice?

Accepted Answer

Establish overall scene, then mid-range with scale, then close-up with scale

Answer

The standard forensic photography sequence progresses from establishing shots to mid-range shots with a scale, and finally to close-up shots with oblique lighting and scale.

Question 5

Alternate Light Source (ALS) photography is best used at a crime scene to:

Accepted Answer

Reveal latent biological evidence such as semen or saliva fluorescing under specific wavelengths

Answer

ALS causes biological fluids like semen and saliva to fluoresce at specific wavelengths, making latent evidence visible that would be missed under normal lighting.

(CFP) Certified Forensic Photographer Practice Test

(CFP) Certified Forensic Photographer Practice Test

CFP Advanced Techniques & Methods 2