How does studying hair help in CSI?

How does studying hair help 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...

Hair in that deposition, that crime scene, comes about often as a result of violent contact between the suspect and the victim and because of that, it's usually a crime of very serious nature. It could be sexual assault, it could be a murder. So, the finding of a hair at a crime scene and the ability to link that hair to a particular individual certainly incriminates that individual and raises significant suspicions. But, there's more work that has to be done in order to complete the analysis of human hair examination, and that entails, also, DNA.