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Chapter 15 forensics
Chapter 15 Vocabulary
| Term | Definition |
|---|---|
| cast | 3d impression may be made to preserve evidence |
| dental stone | casting material used in snow |
| dentin | similar to bone composed primarily of calcium and phosphorus |
| dentition pattern | shape of teeth |
| electrostatic dusting | technique used to reveal fine dust and create an imprssion |
| enamel | tough covering of teeth; hardest substance in the human body |
| gel lifting | method used to visualize and recover latent impressions; best for oily or moist impressions |
| grooves | indentations |
| latent impressions | hidden impressions requiring special techniques to be visualized. |
| patent impressions | 2 D impressions that are already visible |
| plastic impressions | 3D impression cast in soft material such as soil, snow or blood |
| ridges | elevated regions |
| skid to stop formula | used to estimate speeds of vehicles |
| sole | pattern on bottom of a piece of footwear |
| tire groove | depression in tread pattern |
| tire rib | ridge of tread running down tread area and around circumference of the tire |
| tire ridge | elevated area on the tread pattern |
| track width | distance from center of tread pattern on left tire to center of tread pattern on corresponding right tire; can be different for front and rear axles. |
| tread pattern | unique design or a tire's surface |
| turning diameter | measure of how tight a circle can be driven by a vehicle |
| wheel base | distance from center of front axle on a vehicle to center of rear axle. |