Explain how hair can be considered as individual evidence.
Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.
Given that the Medullary Index is the diameter of the medulla over the diameter of the hair shaft, determine if the following hair is derived from a person or an animal.
The medulla diameter is 130 microns wide and the medulla measures 55 microns.
Question 15
15.
1
1
1
Tweezers or tape are often used to collect fibers over large areas.
True
False
Select all that applies: While collecting fiber in a small area, these are the correct guidelines to follow.
using tape
using tweezers
using a vacuum
collect in a paper bag
collect in a paper bindle
The transfer of evidence such as a fiber from a source to a person, then to another person, is called:
primary transfer
secondary transfer
direct transfer
tertiary transfer
Which type of fiber is wool classified as?
Natural fiber
Synthetic fiber
Recycled fiber
Man-made fiber
Which of the following is a synthetic fiber?
Cotton
Nylon
Silk
Linen
What is a common natural fiber?
Cotton
Rayon
Acrylic
Polyester
What indicates a synthetic fiber during a burn test?
Burns quickly with ash residue
Melts and drips when burned
Chemical odor released
Turns to char without melting
How does a natural fiber behave in a burn test?
Produces a chemical smell when burned
Leaves a soft ash residue
Burns slowly with smell of burning hair
Melts without leaving residue
What can hair diameter indicate in forensic analysis?
Species identification
Gender identification
Color analysis
Age determination
What is the outermost layer of the hair shaft?
Cuticle
Follicle
Medulla
Cortex
Which part of the hair shaft gives it strength and pigment?
Medulla
Cortex
Root
Cuticle
What is the innermost layer of the hair shaft? (This can be missing for some)
Cortex
Medulla
Shaft
Cuticle
Determine the correct order for the growth phases of hair.
