Trace Evidence: Hair, Fiber & Glass

Front

What is trace evidence?

Back

Trace evidence refers to small, often microscopic materials that are transferred from one location to another during a crime, such as hair, fibers, and glass.

Front

Why are fibers considered excellent trace evidence?

Back

Fibers are easily transferred from victim to suspect, often overlooked by suspects, and can be easily collected and stored.

Front

What can glass fractures reveal to investigators?

Back

Glass fractures can indicate which side of the glass was hit, helping to reconstruct the events of a crime.

Front

How is the density of glass calculated?

Back

Density is calculated by dividing the mass of a substance by its volume.

Front

What is the formula for calculating density?

Back

The formula for density is d = m / V, where d is density, m is mass, and V is volume.

Front

What does a damaged hair root indicate?

Back

A damaged hair root suggests that the hair was forcefully removed, which may indicate a struggle.

Front

What are the two main types of trace evidence?

Back

The two main types of trace evidence are hair and fibers, and glass.

Front

What is the significance of hair in forensic investigations?

Back

Hair can provide DNA evidence, and its characteristics can link a suspect to a crime scene.

Front

How can fibers be analyzed in forensic science?

Back

Fibers can be analyzed through microscopy, chemical tests, and comparison with known samples.

Front

What role does glass play in forensic evidence?

Back

Glass can provide information about the crime scene, such as the point of entry or exit, and can link a suspect to a location.