Ch 3 Forensics: Hair Analysis

Front

What type of evidence is hair without the follicular tag considered?

Back

Class evidence.

Front

Where is the OLDEST part of a hair shaft when viewed under an electron microscope?

Back

The top of the hair shaft.

Front

What is the tough clear outside covering of a hair shaft called?

Back

Cuticle.

Front

What is the middle layer of a hair shaft that contains pigment?

Back

The cortex.

Front

If hair grows at a rate of 0.44 mm per day, how many days would it take for hair to grow 8 mm?

Back

Approximately 18 days.

Front

What is the innermost layer of a hair shaft called?

Back

Medulla.

Front

What is the primary function of the cuticle in hair?

Back

To protect the inner layers of the hair shaft.

Front

What can the presence of a follicular tag indicate in hair analysis?

Back

It can indicate individual evidence, as it contains DNA.

Front

What is the significance of hair color in forensic analysis?

Back

It can provide class evidence and help in identifying individuals.

Front

How can the growth rate of hair assist in determining the time of death?

Back

By measuring the length of hair growth since the last dye or cut, investigators can estimate the time of death.