Probability and Class Evidence Exercise
A young person was seen leaving C.B. East student parking lot after having been near a car with a
broken window; the cars CD player was missing. The suspect was identified to have light brown hair,
a white shirt, bl
What is testimonial evidence?
_ statements given to police as well as
testimony in court by people who witnessed an event.
How many items do you remember? List them below.
Eyewitness accounts can be a us
Eye Witness Basics: Pros &
Cons of Testimonial Evidence
Age may play a role in the accuracy of an eyewitness statement or
identification of a suspect.
Studies have shown that when a lineup contains the actual culprit,
both young children an
PROCESSING A CRIME SCENE
Isolate and secure the scene
Document the scene
Search for evidence
Collect and package evidence, maintaining the chain of
Submit evidence to the crime lab
Top Reasons for Committing a Crime
Use the websites on the Forensic Science page of the Kid Zone at http:/sciencespot.net/ to complete this worksheet.
1st Site: Wikipedia Locards Principle
1. Edmund Locard was the director of the very first _ laboratory in existence,
Physical Evidence Notes
1. The value of trace forensic evidence was first recognized by Edmund _ in 1910. The
Locards Exchange Principle states that "with _ between two items, there will be an
2. Complete each section below as you discuss the n
Crime Scene Basics
Crime scene: Any physical location in which a crime has occurred or is
suspected of having occurred.
Testimonial: evidence includes oral or written statements given to
police as well as court testimony by people who witnessed an event.
Crime Scene Personnel
_ _: Any physical location in which
a crime has occurred or is suspected of having occurred.
_ _ are typically the first
to arrive at a crime scene. They are responsible for
securing the scene and detaining persons of inte