CFC Forensic Science Principles & Investigative Methods 2

Question 1

Which principle states that every contact between two objects leaves a trace that can be detected?

Accepted Answer

Locard's Exchange Principle

Answer

Locard's Exchange Principle holds that any physical contact between two surfaces results in a mutual transfer of material.

Question 2

What is the primary purpose of establishing a chain of custody for physical evidence?

Accepted Answer

To document everyone who handled the evidence and ensure its integrity

Answer

Chain of custody documents the chronological history of evidence handling to ensure it has not been tampered with or contaminated.

Question 3

In forensic investigations, what does 'class evidence' refer to?

Accepted Answer

Evidence that can narrow an item to a group but not a single source

Answer

Class evidence shares characteristics common to a group of items, such as a shoe print matching a particular brand, but cannot uniquely identify a single source.

Question 4

What is the correct sequence for processing a crime scene?

Accepted Answer

Secure, document, collect, analyze

Answer

Crime scenes must first be secured to prevent contamination, then thoroughly documented before any evidence is collected and later analyzed.

Question 5

Which type of fingerprint pattern is the most common in the general population?

Accepted Answer

Loop

Answer

Loop patterns account for approximately 60–65% of all fingerprints, making them the most frequently encountered pattern type.

(CFC) Certified Forensic Consultant Practice Test

(CFC) Certified Forensic Consultant Practice Test

CFC Forensic Science Principles & Investigative Methods 2