Forensics Hair Evidence

How can you identify an individual with a hair strand?

• with DNA from the follicle

• with DNA from the hair shaft

• hair can only ever be class evidence

Hair has been used in forensic investigation for over 100 years.

• True

• False

Which of the following are functions of hair (choose all that apply)

• help regulate body temperature

• decreasing friction

• sun protection

• provides sensory

Label the layers.

a

b

c

cuticle

medulla

cortex

follicle

Match the term to the correct definition

• cortex

• outer layer of the hair that protects it

• cuticle

• middle and largest layer of hair shaft, contains pigment

• medulla

• central core of the hair shaft, can be hollow or have cells

Which of the following are acceptable methods to collect hair evidence? (choose all that apply)

• tape

• forceps

• vacuum

• picking it up with your fingers

• glue

Label the parts of the hair

a

b

cortex

shaft

follicle

medulla

What kind of cuticle pattern is usually found on human hair?

• coronal

• imbricate

• spinous

Match the term to the correct image

• coronal

• 
• spinous

• 
• imbricate

• 

Tags

NGSS.MS-LS1-2

Animal hair has a medullary index of​ ​ (a)   and human hair has a medullary index of ​ (b)   .

• 0.5 or greater
• 0.33 or less