Trace Evidence and Hair Analysis

These flashcards cover key concepts related to trace evidence, hair analysis, and the principles of evidence identification, essential for understanding forensic implications.

Trace Evidence

Any small pieces of material, either naturally occurring or man-made.

Class Evidence

Evidence that belongs to a large group of people and is not helpful in identifying a specific suspect.

Individual Evidence

Evidence that can be linked to a specific individual, such as DNA or fingerprints.

Locard's Principle

States that when any two objects come in contact, they transfer material from one to the other.

Hair Morphology

The study of the structure and form of hair, including shape, structure, color, and patterns.

Anagen Phase

The growth phase of hair that lasts up to 6 years where the root has a flame-shaped appearance.

Catagen Phase

The transitional phase of hair growth between the active growth and rest stages.

Telogen Phase

The resting phase of hair growth where naturally shed hairs have a club-shaped root.

Medullary Index

Measurement of the diameter of the medulla relative to the diameter of the hair shaft.

Scale Types

Different structures of the hair cuticle that vary between species, including mosaic, chevron, and imbricate.