Forensics Unit 1 review 2025

The ability to establish the exact whereabouts of an item of evidence and under whose control it was from its collection at the crime scene to its presentation in the courtroom and everywhere in between is called

• chain of command
• record of evidence
• chain of custody

the first responding police officer should keep a record of anyone who enters or leave the crime scene.  This is called

• chain of command
• evidence log
• security log

In a crime scene sketch, there should always be an arrow to show which way is

• South
• East
• West
• North

What are the four patterns to search for evidence

• spiral, round, linear, quadrant
• grid, round, linear, zone
• spiral, grid, quadrant, no pattern
• spiral, grid, linear, quadrant

Define the "Locard's Principle."

• the scientific examination of evidence in a criminal investigation
• states that criminals always take a trace of something with them or leave a trace of something behind at the scene of the crime
• a type of evidence
• the person who runs the Locard School

The reason that it is important to separate witnesses at a crime scene is to__.

• Prevent contamination of the evidence

• Prevent fighting among witnesses

• Prevent the witnesses from talking to one another

• Protect them from the perpetrator.

Correct collection of evidence requires which of the following?

• Documenting the location where the evidence was found.

• Correct packaging of the evidence.

• Maintaining proper Chain of Custody.

• All of the above

Which of the following is NOT a member of the Crime Scene Investigation team?

• Police officer

• Judge

Which of the following evidence is considered to be biological?

• impressions

• Fingerprints

• Shell Casings

• Hair

Whenever two people come in contact with each other, a physical transfer occurs. To a forensic examiner, these transferred materials constitute what is called:

• trace evidence.

• class evidence.

• direct evidence.

• None of these.