Crime Scene Investigation

Question 1

What is a chain of custody?

Answer 1

• the single most important piece of paper generated at a crime scene.
• documents the movement of evidence from the time it is obtained to the time it is presented in court.

Question 2

What should the first officer or CSI at the crime scene do?

Answer 2

• The primary task of the FO at a crime scene is to secure the scene and prevent destruction or alteration of the critical and sometimes fragile context of a crime scene.

Question 3

Name four safety issues for CSIs.

Answer 3

• Inhalation
• Skin contact
• Ingestion
• Injection
• OR
• Blood-borne pathogens (AIDS,Hepatitis, etc);
• Chemical ; biological agents ; explosives; perpetrator

Question 4

What is provenience?

Answer 4

The provenance is the ORIGIN and derivation of an item in relation to other things and especially in relation to the datum.

Question 5

When is it acceptable to release a crime scene?

Answer 5

A crime scene can be released after the final survey which is an event that should, like all other events, be documented.

Question 6

Who should be involved in the final walk-through of a crime scene?

Answer 6

At least 2 people from each various agencies need to do the final walk through.

Question 7

What should be included in a crime scene sketch?
●	Photographs
●	Dimensions
●	Distances between objects
●	Case identifier
●	Date
●	Time
●	Location
●	Weather and lighting
●	Arrow pointing north
●	Assignments of all personnel.

Answer 7

Photographs

Question 8

What is a “Universal Precaution”?

Answer 8

the primary concept for infection control. Requires employees to treat all human blood, body fluids, or other potentially infectious mate- rials as if they are infected with diseases.

Question 9

What’s involved in making a plan for a crime scene?

Answer 9

You need a search warrant, a command station and everyone needs to have their personal tasks.
- Prepare => obtain search warrant, if necessary; set command station, task personnel with responsibilities; secure: scene & evidence.

Question 10

Why is it important to have a plan for a crime scene?

Answer 10

Plan is helpful so that things can run smoothly and no evidence is disrupted at the scene because of poor organisation of workers.
- Processing crime scenes can be tedious, physically demanding work, and people, even professionals, perform poorly when they are tired.

Question 11

21. TRUE or FALSE: Neoprene gloves offer protection from acids, solvents, alkalies, bases, and most refrigerants.

Answer 11

True

Question 12

22. TRUE or FALSE: Polyvinyl chloride (PVC) is resistant to alkalies, oils, and low concentrations of nitric and chromic acids

Answer 12

True

Question 13

TRUE or FALSE: Latex will degrade if exposed to gasoline or kerosene and prolonged exposure to excessive heat or direct sunlight.

Answer 13

True

Question 14

24. In digital photography, light is recorded as a specific charge on millions of tiny _____?

Answer 14

Pixels

Question 15

25. When should Photographs be taken?
    a. While collecting evidence
    b. Before the evidence is recovered.
    c. After looking around the scene.

Answer 15

Before the evidence is recovered - should begin as soon as possible.

Question 16

26. Detailed information about each photo taken at a crime scene must be recorded how? Select one which does not apply.
    a. 1. case #
    b. 2. Type of scene
    c. 3. Location - established by a series of overall photographs, including one or more landmarks, with 360° of coverage.
    d. 4. description of camera
    e. 5. lenses being used
    f. 6. film type
    g. 7. shutter speed
    h. 8. photographer’s name and title
    i. 9. Batteries

Answer 16

Batteries

Question 17

27. During the Preliminary Survey what should you include in your notes? Select one that does not apply in the context.
    a. Document the scene
    b. Physical & environmental conditions
    c. Personnel task & activities
    d. Evaluate physical evidence collection requirements
    e. Photographs

Answer 17

Photographs

Question 18

28. True or False: During the preliminary survey, you Focus more on the evidence that is more robust.

Answer 18

False-= focus first on evidence that could be damaged or lost.

Question 19

29. FO (first Officer) duties:

Answer 19

a. The primary task of the FO at a crime scene is to secure the scene and prevent destruction or alteration of the critical and sometimes fragile context of a crime scene.
1. Detain any potential suspects.
2. Render medical assistance to those who need it.
3. Do not destroy, alter, or add any evidence at the scene.
4. Prevent others, even superiors, from doing the same.

Question 20

Name all the CSI Process

A C P E I R C C

Answer 20

Asses
Control
Preserve
Examine
Interpret/ Analyse
Record
Collect
Case Management