CRIME SCENE INVESTIGATION CHAPTER 1 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

CRIME SCENE INVESTIGATION CHAPTER 1 UPDATED
ACTUAL QUESTIONS AND CORRECT ANSWERS

Question:
1. Locard Exchange principle
Answer:
When two objects come into contact there will be a cross transfer of traces of materials

Question:
2. Criminalistics
Answer:
The specialty of forensic science

Question:
3. Comparative analysis
Answer:
The process where by the class and individual characteristics of an item of questioned source are compared
with those of an item of a known source to ascertain whether the two items originated from the same
source

Question:
4. Recognized
Answer:
The first step in the process of physical evidence collection at a crime scene. If an item is not recognized as
evidenced then the value of that item is lost.

Question:
5. Chain of possession/ chain of custody
Answer:
A process used to maintain and document the chronological history of the evidence from the time it was
collected until it is presented in court.

Question:
6. Class characteristics
Answer:
Those characteristics that define a class

Question:
7. Class only evidence
Answer:
Physical evidence that possess only class characteristics meaning that the individual source can not be
identified

Question:
8. Comparison standard

, Answer:
A material or object collected from a known source for comparison with an item with a unknown source

Question:
9. Contamination
Answer:
The unwanted transfer of material from another source to a item or peace of physical evidence

Question:
10. Exemplar
Answer:
A portion of a known sample used in a comparative analysis
Must be an accurate representation of a known sample
An example

Question:
11. Individualization
Answer:
The identification of the individual source of an evidence item

Question:
12. Identification
Answer:
The process of identifying the type or class of an object

Question:
13. Investigative leads
Answer:
Information that leads an investigator to a suspect or toward a solution to a case

Question:
14. Linkage triangle
Answer:
The concept that the transfer of physical evidence may link a suspect, victim, and crime scene

Question:
15. Linkage
Answer:
Connection of a suspect to a victim, crime scene

Question:
16. Reference standard
Answer:
A standard sample kept in collection of like substances used for comparison with evidence item to
establish it's class