1. Firearm Identification & Ballistics

2. Firearm Examiner
Expert in the id of firearms that involves the id, comparison, and testing of:
Bullets
Cartridges
Gunshot residue
Science of ballistics
Trace metal detection

3. Career Exploration Physics Mathematics Analytical chemistry Biology
High use of microscopes
Great interpretation of scientific research

4. Classification of Guns
4 types of guns
4 types of bullets
4 types of cartridge marks

5. What Bullets are made of
Tin
Antimony
Copper
Zinc

6. What cartridges are made of
Lead
Crass
Gun powder (potassium nitrate, charcoal, and sulfur)

7. Bullet Comparisons Barrels are unique to the manufacturer
Each manufacturer creates a unique pattern of inside, spiral grooves
These are called “lands”
Class characteristics produce a clockwise or counterclockwise spin

8. Bullet Comparison
Comparison microscopes are used to see the fine lines or striations
No 2 barrels have an identical striation pattern which adds to how cases showing the identity of the shooter is proven

9. Bullet Comparison
IBIS (Integrated Ballistic Identification System) is a database compiled from the FBI and the ATF.
“ballistics fingerprinting” network of data about all guns reported in crimes

10. Home Learning
Firearms Identification &Ballistics Analysis Questions Part 1 are due Thursday.
PowerPoint Presentation and questions will be posted online.