A state-of-the-art fingerprint detection technology can identify traces of heroin on human skin, even after someone has washed their hands -- and it is also smart enough to tell whether an individual has used the drug or shaken hands with someone who has handled it.
from Top Technology News -- ScienceDaily https://ift.tt/2pUahVE
Tuesday, November 12, 2019
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» Fingerprint test can distinguish between those who have taken or handled heroin
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