Forensic Science Unit 1

Initial Response/ Receipt of Information Principle: 

One of the most important aspects of securing the crime scene is to preserve the scene with ___________________________________________________. 

• numerous officers entering the scene in various locations

• evidence tape so the media crossing into the scene can take pictures of the evidence

• minimal contamination and disturbance of physical evidence

The initial responding officer(s) should:

A. Control all individuals at the scene—prevent individuals from _________________________ by restricting movement, location and activity while ensuring and maintaining safety at the scene. 

• altering/destroying physical evidence

• looking at physical evidence

• pointing at physical evidence

• telling officers the location of evidence

Two general types of evidence: direct and physical

_________________ evidence in the form of a statement made under oath.

• Physical

• Direct

Two general types of evidence: direct and circumstantial

_____________ evidence any and all objects and materials that are relevant in a crime

• circumstantial

• Direct

4 most common search pattern

1.Spiral

2.Linear

3.Grid

4.______

• Strip

• Wheel or Ray

• Zone

• Quadrant

a person who saw or can give a firsthand account of a crime

• witness
• victim
• accomplice
• forensic science
• hunch

What are the two types of crime scenes?

• primary crime scene/secondary crime scene

• Original location crime scene/alternate location crime scene

• There is only one type of crime scene

• There are no types of crime scene

Which of the following is in the correct order when processing a crime scene? 

•  a) Searching for fingerprints and other evidence, photographs and sketches, surveying the scene, recording location of evidence and documenting, measuring and mapping
•  b) Recording location of evidence and documenting, searching for finger prints and other evidence, measuring and mapping, photographs and sketches, surveying the scene
•  c) Surveying the scene, photographs and sketches, measurements and mapping, searching for fingerprints and other evidence, recording location of evidence and documenting
• d) Surveying the scene, photographs and sketches, measurements and mapping, recording location of evidence and documenting, searching for fingerprints and other evidence 

What does Locard's exchange principle state?

• Every crime will be solved

• Every contact leaves trace evidence

• All physical evidence provides information

• Crimes cannot be solved without physical evidence

What type of evidence cannot prove 100% that a person was at the crime scene during the crime?

• Direct

• Circumstantial