hair 2
- Created by: meganjayne15
- Created on: 02-05-14 23:22
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- Hair
- recovery of hair
- transient evidence
- collect immediately as hair is easy to loose
- tweezering
- tape-lifting
- vacuuming
- combing
- brushing
- scraping
- shaking
- clipping/plucking
- transient evidence
- preparation
- initial mounts should be in water
- identify if hair has an anagen root for DNA analysis
- hair covered in debris/blood/other substance then gently clean using distilled water
- analysis
- initial macroscopic observations
- colour, root presence, shaft profile, length, tip, condition.
- microscopic analysis (x400)
- sketches
- using hair chart
- comparison
- initial macroscopic observations
- mounting a hair
- 1. place approx 1cm diaeter of depex in centre of slide
- 2. with tweezers place hair into depex
- 3. make sure all of the hair is immersed
- 4. place cover slip on top of depex
- 5. should allow 24 hours to dry
- 4. place cover slip on top of depex
- 3. make sure all of the hair is immersed
- 2. with tweezers place hair into depex
- 1. place approx 1cm diaeter of depex in centre of slide
- documentation
- three sketches- root, shaft, tip
- large
- in pen
- annotated
- signed
- variation factors
- regional
- caucasoid
- negroid
- mongoloid
- disease/damage
- pilli torti
- lice
- debris
- regional
- recovery of hair
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