Trace Evidence Flashcards
Locards principle
every touch leaves a trace
primary transfer
direct from source
secondary transfer
indirect, source to carrier to subject
soil applications
on shoes
tires
at the scene
on the victim or suspect
soil analysis
CTGD
color
texture
grain size
density
define hair
appendage of the skin that grows out of the hair follicle
parts of hair
root
bulb
cuticle
cortex
medulla
define fibers
the smallest unit of a textile material that has a length many times greater than it’s diameter
natural fiber
animal or plant source
synthetic fiber
man made
fiber structure analysis
C.SEM.CS.
comparison
scanning electron microscope
cross section
fiber color analysis
micro spectrophotometer
spectral patterns
Becke lines
crystallinity
thin layer chromatography