1. Forensic Science Spring Review Part 2

2. Hair as Evidence Class or Individual evidence
1st determine if it is human
medulla

3. Ballistics
Can determine?
Involves?

4. Entry vs Exit GSR-where and how far

6. Trajectory
2 reference points
Shooters location

7. Forrest Fluff

8. Blood Spatter
Possible to determine…
1st step in blood analysis

10. What can we Learn? 1. Distance from the blood source to the target
2. Direction of travel and impact angles
3. Nature of the force used to cause the bloodshed
4. The object used to cause the bloodshed
5. Sequencing of multiple bloodshed events
6.Interpretation of contact or transfer patterns

11. Blood Spatter Passive, Projected, Transferred

12. Angles and Patterns

13. Death and Decomposition
Manner-homicide, natural, accidental, suicide
Cause-heart attack, gun, strangle, drown
Mechanism-loss of blood, air

14. Algor Livor Rigor Mortis
Algor mortis -loss of 1 degree of temp/hour
Livor mortis -color begins 2 hours after death, permanent at 8 hours
Rigor mortis -stiffness begins 2 hours after death…head to toes about 12 hours, reverses in same order after 36 hours

15. How long: head and trunk? Head, trunk, legs ?legs only?

16. Factors that affect rigor mortis

17. 5 stages of decomp Initial decay -bugs no smell Putrefaction-smell
Black putrefaction-bad smell, flattening
Butyric fermentation-moist
Dry decay-hair and bones

18. How long? First step? How long?

19. You can be anything, choose wisely

20. Anthropology
Growth plate
Sutures
S and L=30
C=50

21. Male vs Female

22. Height
Any long bone
Femur
Tibia
Fibula
Humerous
Radius
ulna

23. Facial reconstruction

24. mDNA
YES NO

25. Good Luck on Your Final Exams