Show:
Intro to
Crime Scenes
Eyewitnesses
Fingerprint Types
Hairs
Fibers
100
Name 4 of the 7 S's, in any order
Any 4 are OK! 
100
What is a benefit to eyewitness testimony?
It can give investigators a place to begin their investigation
100
What is the primary characteristic of the fingerprint for 100? 
Loop
100
Name the three layers of mammal hair in order from outside to inside
Cuticle - cortex - medulla 
100
Fibers make up... 
Fabrics. (Examples are also OK)
200
What is the FIRST of the 7 S's?
Secure the scene
200
What's a drawback to eyewitness accounts?
Witnesses can be effected by stress, may have not noticed their surroundings, may lie
200

What is the primary characteristic of the fingerprint for 200? 

Whorl
200
Which layer of hair can be scaly?
Cuticle.
200
Where do fibers originate from? Name 3 unique sources beyond clothes.
Carpets, car linings, curtains, wallhangings, etc.
300
In which step do you take pictures of the scene? 
See the scene 
300
Name a case where eyewitness testimony was used inappropriately.
Any; many Innocence Project cases
300

What is the primary characteristic of the fingerprint for 300? 

Loop
300
What is the protein hair is made of?
Keratin
300
Which of these is not used to identify a fiber: diameter, color, cross-section, length
Length
400
List the 7 S's in order 
Secure scene - Separate witnesses - Scan scene - See scene - Sketch scene - Search scene - Seal evidence
400
How have investigators improved witness lineups to decrease the chance of incorrect identifications? 
Double blind line-up
400
What is the detailed description of this fingerprint? 
Double whorl
400
How can you tell if the microscope slide you're looking at has a prominent background? (Use the image to help you explain)
The background may vary on the two sides of the slide. The hair itself will be generally symmetrical. 
400
Which three tests did we perform on our fiber samples in lab? 
Microscope, warming test, flame test
500
What are the three search patterns, and what is a benefit of each?
Linear - covers large areas well / Spiral - fast but not very accurate / Grid - very accurate
500
How many stairs are there between the first and second floor of this building?
Count
500
Is the type of fingerprint pictured most common, least common, or somewhat common within the human population? 
Arch - least common
500
Describe the medulla in this image.
There is no medulla in this hair.
500
Do synthetic or natural fibers retreat from flame faster?
Typically synthetic