What can be learned from studying hair samples in CSI?
There are a number of things that can be learned from studying hair samples in CSI. Of course most importantly we can learn whether a particular individual can be included or excluded from a crime scene. Now certainly if the hairs do not compare, that will serve to exonerate an innocent individual. But if we have a hair comparison, where there is a comparison or a likeness that warrants further study, utilizing hair to determine the sex of an individual, to determine the race of an individual, to determine the age of an individual is a very risky proposition that should be undertaken with a very good deal of caution, and it is really not recommended that that kind of analysis be conducted just from human hair. Probably the best thing we can do with a human hair would be to link it or not link it with a particular individual by a microscopic examination.
