Forensic Chemistry: Mysterious Hairs and Fibers

Monday we learned about two kinds of trace evidence: hair and fiber. To learn more about hair, we examined at several different types. We looked at human hair — dyed and not dyed — as well as grey hair. We also investigated nonhuman hair. We looked at cat, dog, mouse, rat, horse, and even wooly mammoth hair!

To learn about fibers, we had a little fiber mystery on our hands. A red fiber had been found at a crime scene where suspects were wearing red clothes all made of different fabrics. Needless to say, our students went through all the known and unknown samples comparing the results of different tests and found the criminal!

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