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CRIM 409: FORENSIC SCIENCE LECTURE EIGHT: HAIR EXAMINATIONS
Why Is Hair Good Evidence? ,[object Object],[object Object],[object Object],[object Object]
Hair ,[object Object],[object Object],[object Object],[object Object]
Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hair Evidence ,[object Object],[object Object],Suspect Object Scene Victim
Hair Shaft ,[object Object],[object Object],[object Object],[object Object]
Hair ,[object Object],Look at class characteristics  (microscope): ,[object Object],[object Object]
The Cuticle ,[object Object],[object Object],[object Object],[object Object],[object Object]
Animal Hairs Coronal scale pattern is found in hairs of very fine diameter. Coronal scales are commonly found in the hairs of small rodents and bats
Animal Hairs Spinous or petal-like scales are triangular in shape and protrude from hair shaft. Found on hairs of seals, cats, and some other animals. They are never found in human hairs
Animal Hairs Imbricate or flattened-scale type consists of overlapping scales with narrow margins. Commonly found in human hairs and many animal hairs
The Cortex ,[object Object],[object Object],[object Object]
Hair Color
Dyed Hair
The Medulla ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Medulla Structure
Hair Shape ,[object Object],Round (Straight) Oval (Curly) Flat (kinky)
Cross Section
Hair Growth Cycle
Hair Growth ,[object Object],[object Object],[object Object],[object Object],[object Object]
The Root Human roots look different based on whether they have been forcibly removed or if they are telogen hairs and have fallen out
Root Structure
Hair Comparison ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DNA from Hair ,[object Object],[object Object]
Collection of Hair ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hair Toxicology ,[object Object],[object Object],[object Object],[object Object],[object Object]
Hair Toxicology ,[object Object]
Summary of Potential Results ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hair Examination Conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Postmortem Root Banding

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Crim 409 Lecture 8