Vocabulary
Types of Impressions
Car Movements
Dental Impressions
Random
100
An elevated area on the tread pattern.
What is a tire ridge?
100
Impression made by tires when they come in contact with a surface.
What is a tire impression?
100

Marks that indicate the speed a car traveled when it left a road or the direction in which it traveled when fleeing a crime scene.

Tire marks
100
Bite marks are this kind of evidence.
What is individual evidence?
100
A person's job or personality can be revealed through this type of impression.
What is a shoe impression?
200
The pattern on the bottom of a piece of footwear.
What is a sole?
200

Impression teeth make when they bite a victim or food.

What is a teeth impression?

200

Situation where the car is gone, but the tire marks leave clues leading to its identity.

What is a hit and run?

200
How many teeth the average adult has.
What is 32?
200
Numerous shoe prints together can tell an investigator if a person has a what.
What is an injury?
300
A depression in the tread pattern.
What is a tire groove?
300
Hidden impressions requiring special techniques to be visualized.
What is a latent impression?
300
Formed when someone brakes suddenly and lock the wheels.
What are skid marks?
300
The hardest substance in the body composed of calcium and phosphorus.
What is enamel?
300

Scratches or wear patterns in shoes are an example of...

individual characteristics

400
The distance from the center of the front axle on a vehicle to the center of the rear axle.
What is a wheel base?
400
Two-dimensional impressions that are already visible.
What are patent impressions?
400
Produced when a vehicle travels in a curved path faster than the vehicle can handle and skids sideways.
What are yaw marks?
400
The principle that an exchange of materials occurs between a victim or suspect from a bite mark.
What is Locard's principle of exchange?
400
A substance painted on a tire and then the vehicle drives on paper to get the impression.
What is ink?
500
The distance from the center of the tread pattern on the left tire to the center of the tread pattern on the corresponding right tire.
What is track width?
500
Three-dimensional impressions cast in soft materials, such as soil and snow or blood.
What are plastic impressions?
500
Produced by a damaged or overloaded tire or tires during or immediately after impact.
What are tire scrubs?
500

Measurements taken of a full bite mark to narrow down suspects

The width and depth of the maxilla and mandible

500
A substance poured into impressions and then hardens.
What is Plaster of Paris?
M
e
n
u