Forensic Science Unit 1 Review

Locard’s Exchange principle implies all of the following except:

• Fibers can be transferred from one person to another.

• Blood spatter is used to identify blood type.

• Cat hair can be transferred to your pants.

• Soil samples can be carried from the yard into your home.

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

The documented and unbroken transfer of evidence is known as ____.

• Frye Standard

• Locard’s Exchange Principle

• Chain of Custody

• Daubert Ruling

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

• Police officer

• Judge

Which of the following is completed during “searching the scene?”

• Evidence is marked

• Evidence is collected

• Evidence is analyzed

• the crime scene is marked off with tape or a barricade

Which of the following evidence is considered to be direct evidence?

• A fingerprint left on a door knob

• A fiber from a suspect’s couch found on the victim’s shirt.

• Blood from a victim found under the fingernails of a suspect.

• A signed confession in a police report

Which of the following evidence is considered to be biological?

• impressions

• Fingerprints

• Shell Casings

• Hair

Good observation skills come naturally to investigators, they do not need to be trained.

• True

• False

If a witness remembers seeing something happen, we can trust that it happened just as they remembered.

• True

• False