Forensic Science Unit 1 Exam

Front

What is Locard’s Exchange Principle?

Back

The principle states that whenever two objects come into contact, there is always a transfer of material between them.

Front

What does it mean when a witness's memory is considered unreliable?

Back

It means that eyewitness accounts can be influenced by various factors and may not accurately reflect what happened.

Front

What is the primary reason for wrongful convictions according to the Innocence Project?

Back

Inaccurate eyewitness accounts.

Front

What type of evidence is hair classified as?

Back

Biological evidence.

Front

What is direct evidence?

Back

Evidence that directly links a suspect to a crime, such as a confession or a fingerprint.

Front

What is an example of Locard’s Exchange Principle in action?

Back

Fibers from a suspect's clothing found on a victim.

Front

Why is blood spatter analysis important in forensic science?

Back

It helps to determine the type of blood and the circumstances of the crime.

Front

What are the 7 S's of Crime Scene Investigation?

Back

Secure the scene, Separate witnesses, Scan the scene, See the scene, Sketch the scene, Search for evidence, and Secure evidence.

Front

What is the difference between direct and circumstantial evidence?

Back

Direct evidence directly links a suspect to a crime, while circumstantial evidence requires inference to connect it to a conclusion.

Front

What role does a forensic scientist play in a criminal investigation?

Back

They analyze physical evidence collected from crime scenes to help solve cases.