Types of Impressions
This type of impressions is used to analyze the prints left on the ground at the location of a crime scene.
What are shoeprint impressions?
Name one of the three design elements.
What are the grooves, slots, or sipes?
This is the material of choice when making casts of shoeprint impressions.
What is dental stone?
Tool impressions are made by.
What is when a harder object comes in contact with a softer object, leaving marks on it?
This type of impressions are casted through the use of dental stone.
What are shoeprint, tool mark, and tire track impressions?
This is how the wheelbase of tires are measured.
What is from front center to back center?
The materials are commonly used to take the impressions of smaller objects like bite marks or scratches left behind on a forced lock.
What are Permlastic and Polyvinylsiloxan?
Tool impressions most commonly involve these type of characteristics.
What are class characteristics?
This type of impression would be analyzed at the scene of a car accident?
What are tire track impressions?
This is known as the diameter of a circle made when the wheels are fully turned.
What is the turning diameter?
This can be found through measurements of the length and width of footwear.
What is the shoe size?
Name one class characteristic that can be found by looking at tool mark impressions.
What are the size and shape of the tool?
This type of impressions in used when there has been a robbery (by forcible entry).
What are tool mark impressions?
Name one class characteristic that can be found through tire track analysis.
What are size, tread design, or some ware marks?
These are often specific to the specific shoe manufacturer.
What is tread pattern?
In reference to Forensic Science, tool mark impressions commonly involve this.
What is forcible entry?
This type of impressions can be left behind most commonly on the skin of the victim.
What are bite mark impressions?
Recovery of tire impression evidence should be made with these types of photographs.
This is how you cast a shoeprint found in a mud puddle.
What is using a turkey baster to drain the water and powder to dry the area prior making the cast?
This makes screwdrivers (regardless of type) unique in its appearance.
What are microscopic imperfections in the blading?