Forensic Science Overview

A series of flashcards aimed at helping students review key concepts in forensic science from their lecture notes.

What is forensic science?

Forensic science is the investigation of a crime using scientific means.

What are the main disciplines involved in forensic science?

The main disciplines are biology, chemistry, and physics.

What is the role of forensic investigators at a crime scene?

Forensic investigators collect and analyze physical evidence related to a crime.

What are the areas of forensic science?

Areas include chemistry, biology, and physical science.

What is Locard's Exchange Principle?

It states that every contact leaves a trace.

What are the responsibilities of field officers in forensic science?

Field officers collect physical evidence and document the crime scene.

Who analyzes the evidence collected by field officers?

Lab officers analyze and test the evidence.

What is the significance of a forensic pathologist?

They examine bodies to determine the cause of death during autopsies.

What is class evidence?

Class evidence narrows the identity to a group.

What is individual evidence?

Individual evidence narrows the identity to a single person, like DNA.

What is testimonial evidence?

Testimonial evidence includes oral or written statements from witnesses.

What is circumstantial evidence?

Circumstantial evidence implies but does not directly prove a fact.

Why is the chain of custody important?

It ensures evidence is handled properly and is admissible in court.

What factors can affect eyewitness memory?

Age, stress, time of day, and familiarity with the scene can affect recall.

What are micro expressions?

Micro expressions are facial expressions that reveal emotions and cannot be faked.