Forensic Hair Analysis Concepts

How many hairs does the average person lose per day?

• 10-20 hairs

• 20-40 hairs

• 40-125 hairs

• 150-200 hairs

When is hair considered individual evidence in a forensic investigation?

• When it is found on clothing

• When it is collected by scraping surfaces

• When the hair follicle is attached

• When it is a dark-colored hair

Which of the following is a method forensic investigators use to collect hair samples from a crime scene?

• Burning

• Plucking

• Washing

• Brushing

Which of the following is a microscopic property of hair?

• Length

• Color

• Pattern of the medulla

• Curliness

What type of microscope is best for viewing two hair samples simultaneously for comparison?

• Compound microscope

• Electron microscope

• Comparison microscope

• Stereomicroscope

What are the three layers of the hair shaft, from outermost to innermost?

• Medulla, Cortex, Cuticle

• Cuticle, Medulla, Cortex

• Cortex, Cuticle, Medulla

• Cuticle, Cortex, Medulla

What is the primary function of the hair cuticle?

• To provide hair with its color

• To protect the inner layers of the hair shaft

• To regulate hair temperature

• To act as a sensory organ