Trace Evidence Review

Who coined the phrase "Every Contact Leaves a Trace"?

• Walter McCrone

• Edmond Locard

• Calvin Goddard

• Francis Galton

What characteristic would be LEAST useful when examining a fiber?

• dye content

• length

• direction and number of twists

• diameter

If a root is found on a hair, it may have DNA in it. What type of characteristics will this have?

• class

• group

• personal

• individual

What is the main ingredient in glass?

• sand

• boron oxide

• amorphous solids

• crystalline solids

Most accurate method for determining what glass fragments came from.

• fracture matching

• refractive index

• Becke Line

• flotation method

Which of the following is NOT a natural fiber?

• asbestos

• cotton

• rayon

• wool

The most important characteristic of fiber evidence is

• color

• length

• diameter

• size

Which fiber is most likely to smell like burning hair?

• rayon

• polyester

• spandex

• wool

What type of fracture is shown by the arrow?

• radial

• concentric

• circular

• linear

Which letter shows the medulla?

• A

• B

• C

• None show the medulla