Forensics Hair Analysis

Front

What is the main focus of Forensic Hair Analysis?

Back

Forensic Hair Analysis focuses on examining hair samples to determine their origin (human or animal) and to gather evidence in criminal investigations.

Front

What are the three phases of hair growth?

Back

The three phases of hair growth are anagen (growth phase), catagen (transitional phase), and telogen (resting phase).

Front

What is the telogen phase?

Back

The telogen phase is the final phase of hair growth that lasts about three months and results in hair loss.

Front

What are the three cuticle patterns found in hair?

Back

The three cuticle patterns are coronal, spinous, and imbricate.

Front

What is the cuticle of a hair?

Back

The cuticle is the outer layer of the hair shaft, which protects the inner layers and is compared to the ink on a pencil.

Front

How can hair be used as evidence in a crime scene investigation?

Back

Hair can be used to determine the origin (human or animal) and can provide DNA evidence if the root is present.

Front

What is the difference between human and animal hair?

Back

Human hair typically has a more uniform structure and a medulla that is less pronounced compared to animal hair, which can have varied structures and patterns.

Front

What is the medulla in hair structure?

Back

The medulla is the innermost layer of the hair shaft, which may be absent in some human hairs.

Front

Why is it important to determine if hair is human or animal at a crime scene?

Back

Determining if hair is human or animal helps narrow down the investigation and can link evidence to potential suspects or victims.

Front

What role does the cortex play in hair?

Back

The cortex is the middle layer of the hair shaft that contains the majority of the hair's pigment and contributes to its strength.