Transcript Evidence! - kelleyscience

Evidence!
Catalyst – Name as many types of evidence as you can.
Objective – I will identify evidence from text.

Monday 09.07 – no school

Tuesday 09.08 – Evidence Intro,
assessments/work returned
◦ Homework! Finish reading

Wednesday 09.09 – Types of Evidence
notes, characterizing your shoes

Thursday 09.10 – Class v. Independent
Evidence notes, finish shoes

Friday 09.11 – Garbage Lab
The week…

Assessment Returned
◦ 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 – 09.08.15

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!
09.09.15

Monday 09.07 – no school

Tuesday 09.08 – Evidence Intro, assessments/work
returned
◦ Homework! Finish reading

Wednesday 09.09 – Types of Evidence
notes, Forensic Files: Blanket of Evidence

Thursday 09.10 –Characterizing your
shoes

Friday 09.11 – Garbage Lab
The week…
Types of Evidence
Evidence
Circumstantial
Direct
Physical
Biological
Class
Individual
Class
Individual
Direct Evidence
•
•
•
•
Testimonials
Eye witnesses and other witnesses
Confessions
No opinions allowed (hearsay)
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.
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.
Physical Evidence
•
•
•
•
•
•
(In this case physical = not biological)
Fingerprints
Tire, shoe, tool impressions
Fibers
Bullets, casings, firearms
**Often Class Evidence
Biological Evidence
•
•
•
•
•
Body fluids
Hair
Plant parts
Natural fibers
**often individualized evidence
Evidence
Circumstantial
Direct
Physical
Biological
Class
Individual
Class
Individual
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
Individual Evidence
• Examples:
▫
▫
▫
▫
Fingerprints, DNA
Matching torn materials or paint chips
Striations on a bullet
Audio recording, handwriting
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
Class Evidence
• Examples:
▫ Blood types
▫ Gun shot residue
▫ Types of shoes
As we watch…
• Make a list of Class and Individual Evidence.
▫ We will discuss our results tomorrow.
▫ Forensic Files: Blanket of Evidence
09.10.15
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.
suspect
Victim
crime scene
• Objective – I will differentiate between class and
individual evidence.
Today…
• Classify your shoes!