What parts of a hair are studied in CSI?

What parts of a hair are studied in CSI?

Richard Saferstein (Former Chief Forensic Scientist) gives expert video advice on: What is 'trace evidence' and how is it studied in CSI?; What is the 'exchange principle' of CSI?; How does studying hair help in CSI? and more...

We look at the root, we look at the tip, and we look at the body of the hair. We look for all the morphological characteristics that one can find with a microscope. What's very important also the color of the hair, the thickness of the hair, and the microscopic characteristics that we see under the scope. We would then compare those to characteristics to other hairs to see if we can make a link.