1. Evidence! Catalyst – Name as many types of evidence as you can.
Objective – I will identify evidence from text.

2. The week… Monday 09.07 – no school
Tuesday – Evidence Intro, assessments/work returned
Homework! Finish reading
Wednesday – Types of Evidence notes, characterizing your shoes
Thursday – Class v. Independent Evidence notes, finish shoes
Friday – Garbage Lab
The week…

3. Today – 09.08.15 Assessment Returned Evidence exercise
Questions/clarifications
Evidence exercise
Read pt. 1 of the short story
With your partner make a list of all the evidence provided (in your notes)
Make an educated guess as to what actually happened.
Show Ms. Kelley your explanation
Read pt. 2 of the short story (finish for homework).
Today –

4. 09.09.15 Objective – I will categorize evidence.
Catalyst – Based on the ending of the Poe story, which evidence was the most important in determining that the perpetrator was not human? Explain why!

5. The week… Monday 09.07 – no school
Tuesday – Evidence Intro, assessments/work returned
Homework! Finish reading
Wednesday – Types of Evidence notes, Forensic Files: Blanket of Evidence
Thursday –Characterizing your shoes
Friday – Garbage Lab
The week…

6. Types of Evidence

7. Evidence
Circumstantial
Direct
Physical
Biological
Class
Individual
Class
Individual

8. Direct Evidence Testimonials Eye witnesses and other witnesses
Confessions
No opinions allowed (hearsay)

9. Circumstantial Evidence
Indirect evidence that is used to imply a fact, but does not directly prove it.
Example: finding a suspect’s gun at the crime scene implies that he/she was there, but does not prove it.
Can be physical or biological.

10. Trace Evidence – Locard’s Exchange Principle
Whenever two people come into contact with each other, a physical transfer occurs.
Hair, fibers, pollen, makeup, skin cells, etc.
Intensity and duration of contact determines HOW MUCH is transferred.

11. Physical Evidence (In this case physical = not biological)
Fingerprints
Tire, shoe, tool impressions
Fibers
Bullets, casings, firearms
**Often Class Evidence

12. Biological Evidence Body fluids Hair Plant parts Natural fibers
**often individualized evidence

13. Evidence
Circumstantial
Direct
Physical
Biological
Class
Individual
Class
Individual

14. Individual Evidence
Direct link between victim, suspect, and crime scene…linked to a specific source.
Looking to establish the evidence triangle
Victim
suspect
crime scene

15. Individual Evidence Examples: Fingerprints, DNA
Matching torn materials or paint chips
Striations on a bullet
Audio recording, handwriting

16. Class Evidence Only linked to a group of persons or things
Doesn’t establish positive proof; considered circumstantial
The more, the better: “probable cause,” “weight of evidence,” “beyond a reasonable doubt”
Statistics are often used to show probability of an event occurring

17. Class Evidence
Examples:
Blood types
Gun shot residue
Types of shoes

18. As we watch… Make a list of Class and Individual Evidence.
We will discuss our results tomorrow.
Forensic Files: Blanket of Evidence

19. Catalyst
What three things must be present for something to be considered individual evidence?
Name two pieces of evidence from yesterdays Forensic File.
Circle the individual evidence.
Objective – I will differentiate between class and individual evidence.
Victim
suspect
crime scene

20. Today…
Classify your shoes!