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Hair
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Hair

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  1. Hair Trace Evidence

  2. Hair is composed of • Hair is produced by What is hair?

  3. Hair is common. • You can not determine • Nuclear DNA Why is hair useful?

  4. The hair shaft is composed of three parts: • The cuticle: • The cortex: • The medulla: Morphology of Human Hair

  5. Identified three ways: • Coronal (crown-like): • Spinous (petal-like): • Imbricate: Cuticle

  6. Can be identified four different ways: • Continuous • Interrupted • Fragmented • No medulla Medulla

  7. Identified three ways: • Cortical fusi • Pigment granules • Ovoid bodies Cortex

  8. Cortical fusi Pigment granules Ovoid bodies

  9. Use tweezers to collect and place evidence in the middle of a druggist fold. • Fold and tuck the paper so the evidence is secure. • Place the paper in an envelope and seal. Make sure to label the envelope appropriately. Collection and Preservation