FREE Law Enforcement Criminal Investigation Fundamentals Questions and Answers

Question 1

What is the primary legal purpose of maintaining a strict chain of custody for an item of physical evidence?

Accepted Answer

To prove the evidence has not been altered or substituted.

Answer

To determine the monetary value of the seized item.

Answer

To create an inventory list for departmental records.

Answer

To inform the prosecutor which officer found the item.

Question 2

An investigator is speaking with a person who witnessed a crime but is not considered a suspect. The goal is to gather as much factual information as possible about the circumstances. This type of non-accusatory questioning is best described as a(n):

Accepted Answer

Interview

Answer

Deposition

Answer

Interrogation

Answer

Arraignment

Question 3

An investigator must process a large, open field where a victim's personal belongings are believed to have been scattered. To ensure the most thorough coverage, which search pattern would be most effective for this type of scene?

Accepted Answer

Grid search

Answer

Zone/Quadrant search

Answer

Spiral search

Answer

Wheel/Ray search

Question 4

In criminal investigation, the legal principle of "corpus delicti" requires the prosecution to establish that:

Accepted Answer

A specific crime has actually been committed.

Answer

The suspect has been properly identified by a witness.

Answer

The body of the victim has been recovered.

Answer

The arresting officer followed all procedures.

Question 5

During a burglary investigation, a crime scene technician discovers a single carpet fiber on the jagged edge of a broken window pane. This small, often microscopic piece of evidence, which was likely transferred from the suspect's clothing, is best classified as:

Accepted Answer

Trace evidence

Answer

Testimonial evidence

Answer

Demonstrative evidence

Answer

Prima facie evidence

Question 6

Which of the following represents the most critical initial responsibility of the first officer arriving at a major crime scene?

Accepted Answer

Ensure officer safety, render aid, and secure the scene.

Answer

Immediately begin interviewing all potential witnesses.

Answer

Start collecting fragile evidence before it degrades.

Answer

Establish a command post for media briefings.