Hair Evidence

Hair analysis may be used to determine all of the following except:

• manner in which the hair was removed

• body region from which the hair came from

• broad racial background of the individual from which the hair came from

• identity of the individual from which the hair came from

We know hair is from a human if…

• The medullary index is 0.5 or greater           

• The medullary index is 0.33 or less

• The cuticle is coronal

• The medulla is fragmented

Hair is helpful in solving old crimes because…

• hair on a suspect never changes

• hair always contains DNA evidence

• hair takes little room to store in evidence closets

• hair does not easily decompose

The following medulla pattern is called

• fragmented 

• continuous

• interrupted

This is the outer layer of hair formed of scales of dead hair that give it it's strength.

• Medulla

• Cortex

• Cuticle

Hair can only be considered class evidence because it is impossible to link the hair to one individual. True or False?

• True

• False

The central core of the hair is called the...?

• Medulla

• Cuticle

• Cortex

• Shaft

The hair shaft is composed of what important protein?

• Cellulose 

• Chitin

• Peptidoglycan

• Keratin

The follicular tag contains DNA and is also known as

• the cortex

• the root

• the medulla

• the shaft

True or False: Investigators recovered a single hair from the cap that matched to Mikail Markhasev.

• True

• False