CSI CSI - Crime Scene Investigator Firearms and Ballistics Evidence Questions and Answers

Question 1

What creates the unique striations found on bullets fired through a rifled barrel?

Accepted Answer

The lands and grooves of rifling in the barrel

Answer

Impact with the target

Answer

Primer ignition pressure

Answer

Ejector marks during loading

Question 2

What does IBIS stand for in the context of firearms examination?

Accepted Answer

Integrated Ballistics Identification System

Answer

International Bullet Identification System

Answer

Investigative Ballistics Information Service

Answer

Internal Breach Inspection Standard

Question 3

What type of individual evidence is a spent cartridge case recovered at a shooting scene?

Accepted Answer

Individual evidence that can be matched to a specific firearm

Answer

Class evidence only with no individual value

Answer

Trace evidence with only chemical significance

Answer

Biological evidence requiring DNA analysis

Question 4

When packaging a firearm as evidence, what is the mandatory first step?

Accepted Answer

Unload the weapon and document its condition

Answer

Remove identifying markings for safety

Answer

Immediately place it in a paper bag

Answer

Swab the barrel for DNA analysis

Question 5

Why would a forensic examiner test-fire a recovered firearm in the laboratory?

Accepted Answer

To generate reference bullets and cartridge cases for comparison to crime scene evidence

Answer

To confirm the firearm is non-functional

Answer

To render the firearm safe for disposal

Answer

To assess the manufacturer's quality control

Question 6

What does the term 'caliber' describe when referring to a firearm?

Accepted Answer

The internal diameter of the barrel corresponding to ammunition size

Answer

The overall length of the barrel

Answer

The number of rounds the magazine holds

Answer

The type of firing mechanism used