CFP Study Guide 2026

Periodically recomputing and verifying hash values against the original baselines confirms stored images have not been corrupted or altered over time, maintaining evidentiary integrity.

Before admission, the court requires the forensic photographer to demonstrate expertise and authenticate the photographs as fair and accurate representations of the scene.

A very fast shutter speed indoors admits very little light, resulting in an underexposed image that may fail to capture critical evidentiary detail.

The very first step in preserving physical evidence is to secure and restrict access to the crime scene. This action prevents contamination, destruction, or alteration of evidence by unauthorized personnel, which is paramount for maintaining the integrity of the scene. Establishing a perimeter and controlling entry ensures that evidence remains undisturbed until it can be properly documented and collected.

Tire width measurements can be matched to manufacturer databases to identify compatible vehicle types, aiding reconstruction engineers in determining the involved vehicle's characteristics.

Using neutral, objective terminology such as 'decedent' or 'individual' rather than 'victim' avoids pre-judging the case outcome and reduces the risk of the photographic evidence being challenged for bias.