1. Basic Crime Lab Services
Aim: What are the 5 basic services a crime laboratory can support?
HW: Finish Apples to Apples Activity

2. HINT: The underlined letters are the first letters of the words.
Do Now: Unscramble each set of letters to reveal a forensic science term.
1. lobod
2. micer encse
3. srnoa
4. redrum
5. tnirpooft
HINT: The underlined letters are the first letters of the words.

3. The answers are ... 1. lobod BLOOD 2. micer encse 3. srnoa CRIME SCENE
4. redrum
5. tnirpooft
BLOOD
CRIME SCENE
ARSON
MURDER
FOOTPRINT

4. Crime Labs Most Crime Labs created for Drug Analysis Only
Diversity and Quality of Services Vary Greatly (Because of Money!)
“Unit” Constitutes a “FULL SERVICE” Crime Lab

5. 5 Basic Crime Lab Services
Physical Science Unit
Biology Unit
Firearms Unit
Document Examination Unit
Photography Unit

6. Physical Science Unit
Uses Chemistry, Physics, and Geology to identify and Compare Crime Scene Evidence
What are some items this unit would study?
drugs, glass, paint, explosives, soil, etc…

7. Examines Blood & Other Body Fluids Compares Hairs & Fibers
Biology Unit
Examines Blood & Other Body Fluids
DNA Profiles
Compares Hairs & Fibers
Examines Plants/Wood

8. Questions???
What do you think is the most accurate biological piece of evidence found at a crime scene?
DNA
What do you think are the 2 most common bodily fluids found at a crime scene?
Blood and Semen

9. Firearms Unit (Ballistics)
Examines firearms, discharged bullets, cartridge cases, and shotgun shells
Searches clothing for gunpowder residue
Determines distance a weapon was fired from

12. Document Examination Unit
Studies Handwriting or typewriting
Analyzes paper & Ink
Examines Indented Writings & Burned Documents
Forgeries, Ransoms, & Kidnappings

16. CRAZY CRIMINALS
According to Point of View, a magazine published by the Alameda county District Attorney’s office, a guy walked into an Oakland bank and handed the teller a note reading, “this is a stikkup. Hand over all yer money fast.”
Guessing from this that the guy was no rocket scientist, the teller replied, “I’ll hand over the cash as long as you sign for it. It’s a bank policy that all robbers have to sign for their money.”
The guy thought this over, then said “Uh, I guess that’s OK.” He signed his full name and address. That’s where the cops found him a few hours later.

17. Photography Unit Examines & records physical evidence
Only black & white photos are shown to jurors…Why?

18. Video Clip
..\Unit 1 movies\Photography.wmv

19. Optional Services Toxicology Unit  poisons/drugs
Latent Fingerprint Unit
Polygraph Unit  lie detector
Voiceprint Analysis Unit
Evidence Collection Unit  CSI

20. Summary Most crime labs are created for..?
Name and Describe the 5 Basic Crime Lab Services?
Name ONE Optional Crime Lab Service