WhatFinger

Researchers can now more accurately distinguish between the intake of a substance and external contamination of the hair

Solving a hairy forensic problem


Solving a hairy forensic problemFor decades, forensic scientists have tested strands of hair to reveal drug use or poisoning. But in recent years, reports have questioned the technique — in particular, its ability to distinguish between the intake of a substance and external contamination of the hair. Now, researchers have reported a new method that appears to do just that in the ACS journal Analytical Chemistry.
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