1. Introduction
Forensic Chemistry

2. Basic Services Provided by Crime Laboratories
Physical Science Unit
Biology Unit
Firearms Unit
Photography Unit

3. Physical Science Unit
Chemistry (drugs, explosives)
Physics (glass, scratches)
Geology (soil, rocks)

4. Biology Unit Bloodstains Body fluids Hair and fibers
Botanical materials (wood and plants).

5. Firearms Unit Firearms Bullets Cartridge & Shells Ammunition
Garments (clothes)

6. The Functions of Forensic Scientists

7. Collect and Analyze Physical Evidence

8. Demands & Constraints When and where do we collect? How do we collect?
For what purpose?

9. Review…. List the four units of a Crime Lab.
The physical science unit uses what three branches of natural science?
List six types of evidence that would be analyzed by physical science unit.
List four types of evidence that would be analyzed by biology unit.
List four types of evidence that firearm unit would analyze.
What is the responsibility of a forensic scientist?
What three questions will they ask at the crime scene?

10. 16 x 9 Behind the Yellow Tape