Questions from Crime and Investigation

Q: Why does a firearms examiner test-fire bullets from a suspect

Why does a firearms examiner test-fire bullets from a suspect barrel?

Q: What is distance determination? Describe two situations in which distance determination

What is distance determination? Describe two situations in which distance determination can establish the facts of a shooting incident.

Q: What evidence does an investigator study to make a distance determination?

What evidence does an investigator study to make a distance determination? How can test-firing a suspect weapon help the investigator make a distance determination?

Q: List three characteristics of a bullet hole that indicate that the shot

List three characteristics of a bullet hole that indicate that the shot was fired at extremely close range.

Q: What is the Greiss test and what two pieces of information can

What is the Greiss test and what two pieces of information can it provide to an investigator?

Q: Define the terms physical property and chemical property.

Define the terms physical property and chemical property.

Q: Criminalist Pete Evett is collecting fiber evidence from a murder scene.

Criminalist Pete Evett is collecting fiber evidence from a murder scene. He notices fibers on the victim’s shirt and trousers, so he places both of these items of clothing in a plastic bag. He also se...

Q: Define sublimation. What happens to the attractive forces between molecules of

Define sublimation. What happens to the attractive forces between molecules of a substance that undergo sublimation?

Q: What is a phase and how can two different phases be distinguished

What is a phase and how can two different phases be distinguished from one another?

Q: What is density? How does heat affect the density of gases

What is density? How does heat affect the density of gases and liquids?