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HAIR ANALYSIS Class or Individual Evidence?

HAIR ANALYSIS Class or Individual Evidence?. STRUCTURE OF HAIR. Two Parts: Follicle: 2. Hair shaft:. It’s In Your Genes. Cross Section of a Hair. Cuticle. The cuticle varies in: Human hair is flattened and narrow (imbricate)

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HAIR ANALYSIS Class or Individual Evidence?

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  1. HAIR ANALYSISClass or Individual Evidence?

  2. STRUCTURE OF HAIR • Two Parts: • Follicle: 2. Hair shaft:

  3. It’s In Your Genes

  4. Cross Section of a Hair

  5. Cuticle • The cuticle varies in: • Human hair is flattened and narrow (imbricate) • Cuticle difference is more pronounced between species rather than individuals • Cortex:

  6. Medulla • The medulla may vary in: • Presence • Thickness • Pattern of pigmentation: continuous,interrupted, segmented, or solid • Opacity: how much light is able to pass through it • More variation amongst species than individuals

  7. Types of Hair

  8. Using Hair in Forensics

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