1. FORENSIC SCIENCE
INTRODUCTION

2. UNITS FIRST SEMESTER SECOND SEMESTER Introduction Physical Evidence
DNA
Documentation
Biology
Introduction
Prints
Toxicology
Trace Evidence
Serology

3. Forensic Science
Application of science to those criminal and civil laws that are enforced by police agencies in a criminal justice system.
The business of providing timely, accurate, and thorough information to all levels of decisions makers in our criminal justice system.

4. CORPUS DELICTI “Body of the Crime”
You must prove:
that a crime occurred
that the person charged with the crime was responsible for the crime
Top Reasons for Committing a Crime
Money
Revenge
Sex
Emotion--love, hate, anger
Source of Evidence
Body
Primary and/or Secondary Crime Scene
Suspect(s)

5. FACETS OF GUILT Means--the ability of have committed the crime
Motive--the reason for committing the crime. (This doesn’t have to be proven or presented in a court of law, but its what everyone wants to know.)
Opportunity--time or availability to have committed the crime.

6. Murder Charges 1st Degree Murder--premeditated
2nd Degree Murder--killed intentionally, but not thought out as much ahead of time
Voluntary Manslaughter--usually involves sudden passion (fear, rage, anger, terror)
Involuntary Manslaughter (criminally negligent homicide)--killed someone, but unintentionally

7. Evidence Characteristics
Class--common to a group of objects or persons
Individual--can be identified with a particular person or source.
ABO Blood Typing
Blood DNA Typing

8. Crime Scene Team

9. First Officer
ADAPT

10. Medical Examiner’s Officer sent to the scene
Livor mortis
Rigor mortis
Algor mortis

11. Medical Examiner’s Responsibilities
Identify the deceased
Establish the time and date of death
Determine a medical cause of death--the injury or disease that resulted in the person dying
Determine the mechanism of death--the physiological reason that the person died
Classify the manner of death
Natural
Accidental
Suicide
Homicide
Undetermined
Notify the next of kin

12. Crime Scene Sketch c A. Couch/sofa B. Female body C. Knife
Date: August 14, Criminalist: Ann Wilson
Time: 11: Location: Rockledge Dr
St. Louis, Mo.
A. Couch/sofa
B. Female body
C. Knife
D. Over turned Lamp
E. Chairs
F. Table
G. Fireplace E c D G A E E E F E

13. Complex Reasoning In Forensic Science
Deductive and Inductive Reasoning
Classifying
Comparing and contrasting
Problem Solving
Analyzing Perspectives
Constructing Support
Error Analysis
Deduction--providing the proof that the situation is true.
Induction-drawing conclusions/generalization from information; listing support for the conclusions
Classifying--putting things into groups and determining the rules for the groups
Comparing--how are things alike and how are they different
Analyzing Perspectives--opinions about an issue and different ways to look at it
Constructing support--support and limitations for a particular argument
Error Analysis--determining what’s wrong and how it can be fixed

14. Logic Logic: A system of reasoning that leads to inferences
Inference: drawing conclusions based on known facts, collection of data and the relationships between that data
Conclusion

15. EYEWITNESS Crazy Criminal
Suspect Falters
Over Account of Robberies
Robbery suspect Frank Margary can’t seem to keep his mouth shut. In some subtle statements, he has confessed to a series of robberies. When questioned about a November robbery at Lakeside Deli and Mini Market, he told detectives: “There’s no way the clerk could identify me, I had my hat down over my eyes.”

16. “HOW PLUS WHY EQUALS WHO”
Remember:
“HOW PLUS WHY EQUALS WHO”
--John Douglas, former FBI profiler
Keep this in mind as you set up your crime scene and work up your lab.

17. History-- Repeating Itself?
1840 William Henry Harrison--died in office
1860 Abraham Lincoln--assassinated
1880 James A. Garfield--assassinated
1900 William McKinley--assassinated
1920 Warren G. Harding--died in office
1940 Franklin D. Roosevelt--died in office
1960 John F. Kennedy--assassinated
1980 Ronald Reagan--survived assassination attempt
2000 George Bush--KIND OF SCARY?

18. Evidence Technician Will set up numbers at the 10 pieces of evidence
One piece of evidence must come from each of the units in this semester.
Will help the other team collect evidence
Have the necessary equipment
Forceps
Bags--paper and plastic
Envelopes
Jars and Q-tips
Properly collect all evidence