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

The week… 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…

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 – 09.08.15

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! 09.09.15

The week… 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. Objective – I will differentiate between class and individual evidence. Victim suspect crime scene

Today… Classify your shoes!