Forensic Trace Evidence Flashcard

Front

What are the three main layers of the hair shaft?

Back

The three main layers of the hair shaft are the cuticle, cortex, and medulla.

Front

What is the function of the cuticle in hair?

Back

The cuticle protects the inner layers of the hair shaft and contributes to the hair's overall strength.

Front

What is the cortex of the hair?

Back

The cortex is the middle layer of the hair shaft that contains pigment and provides strength and elasticity.

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 hair types.

Front

What is the role of the hair follicle?

Back

The hair follicle is responsible for hair growth and is important for individualization in forensic analysis.

Front

What is fiber evidence?

Back

Fiber evidence refers to the analysis of fibers found at a crime scene, which can link a suspect to a victim or location.

Front

What properties are important when comparing synthetic fibers?

Back

Important properties include the presence or absence of delustering particles, lengthwise striations, and diameter.

Front

What is the significance of the medullary index in forensic analysis?

Back

The medullary index is the ratio of the diameter of the medulla to the diameter of the hair shaft, used to differentiate between species.

Front

Which type of crime is least likely to be solved with fiber evidence?

Back

Bombing is least likely to be solved with fiber evidence.

Front

What is the importance of individualization in forensic hair analysis?

Back

Individualization helps to link a specific hair to a particular individual, making it crucial for forensic investigations.