SCI-255 Week 6

Which of the following is an example of a class characteristic in a shoe?

• Size

• Tear in the sole

• Burn pattern

• Tread pattern

True or false: You need both class and individual characteristics of an unknown to match that of a known for a positive ID.

• False

• True

Which impressions are harder to recreate in the lab?

• Indented impressions

• Striated impressions

True or false: Debris that fell into an existing tire impression should be removed before casting.

• False

• True

What is the BEST way to collect known tire impressions?

• Roll the tires while still mounted on the car

• Roll the tires after they are removed from the car

What compound is used to cast toolmarks?

• Plaster of Paris

• Mikrosil

• Dental stone

• Any compound

Tools suspected of making a toolmark can be placed inside the mark to check for a good fit.

• True

• False

Objects containing toolmarks should be marked with their correct orientation.

• True

• False

The process used to put broken pieces back together is NOT referred to as:

• Pattern matching

• Fracture matching

• Jigsaw matching

• Impression matching

Prior to casting a toolmark, trace evidence should be removed from the mark.

• True

• False