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Hairy Forensics: Isotopes can identify the regions where a person may have lived

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10:14am, February 27, 2008

Judging people by their hair isn't shallow, it's sound science: The proportions of certain chemical isotopes in someone's tresses can help detectives pin down that individual's region of origin and recent movements, a new study suggests. The finding could be particularly useful in identifying the victims of crimes or mass disasters and in poking holes in the alibis of suspected criminals.

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