Son of a gun
Well, shoot!
Going ballistic!
Gun Basics
How far was the barrel?
100
Name one way ballistics evidence helps police answer questions.
what type of firearm was used?
what was the caliber of the bullet?
how many bullets were fired?
where was the shooter standing?
what was the angle of impact?
has this firearm been used in a previous crime?
100
patterns of lands and grooves come which part of the firearm?
barrel
Extra!!! Are these lands and grooves individual or class evidence to the gun? (worth 100 points)
100
The marking in the center of the primer came from .....
The Firing Pin
100
According to federal law, how old do you have to be to purchase a handgun?
21
100
What produces a larger wound? (entrance or exit)
Exit
200
The diameter of its bullet and is included with the name of the manufacturer on the headstamp.
Caliber
Extra!!! What caliber is a Colt 45? (100 points)
200
__________________on shooters can help investigators identify a suspect.
gunshot residue
Extra!!! T or F It is easy to wash GSR off of clothes and hands (100 points)
200
The three types of Breech Face markings
Arch, Circular, and Parallel
200
What is the scientific analysis or interpretation of all ballistic related evidence with the purpose of interpreting and establishing the facts in a shooting related crime.
Forensic Ballistics
200
What type of Gun produced this wound?
shot gun
300
The projectile that is fired when a firearm is discharged
bullet
300
Who was responsible for the St. Valentine's Day Masacre?
Al Capone
300
The markings left on the side of the casing when being removed from the gun was made by the ____
Extractor
300
Where was Ty Cooley shot and killed?
At a gun range
300
What Instrument is best when identifying markings on a casing or bullet?
Comparison Microscope
400
The ridges and depressions found on the inside of a firearm's barrel that are created when the firearm is manufactured
lands and grooves
400
What type of bullet:
spreads or mushrooms on impact
causes additional damage to target
inhibits penetration
Hollowpoint
400
What two projectiles are used in a shot gun?
Slug and a Shot
400
What are the three types of bullets?
Hollowpoint
Round nose
Wadcutter
400
No star pattern
NO stippling
Barrel burns on skin
Barrel just off the skin
500
The spiral pattern on a fired projectile made by the lands and grooves in the barrel of a firearm
Rifling
500
What type of bullet:
maximum penetration
cheapest shape to manufacture
easily loads into chambers
round nose
500
Identifies the caliber and manufacturer.
headstamp
500
Name 4 components of ammunition
case, bullet (or projectile), Gun powder, primer, headstamp
500
Case scenario:
Detective Fuller is called to a shooting crime scene in the Fox Hollow edition of Forney, TX. He notices several bullet casings lying around the male victim. Not all of the bullet cases are of the same caliber. There are 9mm and 45mm caliber bullets at the scene. On the victim, Det. Fuller notices a one gunshot wound to the head with stippling. Unfortunately, the bullet is not inside the victim. The body is sent to the medical examiner. Forensic Pathologist, Dr. Bisquit, examines the wound and determines the shooter had to have been:
inches away