Fingerprint Test Can Tell If You’ve Taken Cocaine Even After You’ve Washed Your Hands
A new fingerprint technique can detect traces of cocaine on human skin. From just a simple fingerprint, the technique is “smart” enough to tell whether someone has consumed the drug or simply handled it – even after someone has washed their hands. Reported in the journal Scientific Reports, a team of researchers detail a method that can detect cocaine and benzoylecgonine, a chemical that cocaine breaks down into by the liver, in fingerprints using an analytical chemistry technique called Liquid Chromatography Mass Spectrometry. “A fingerprint is a great way to test…
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