Researchers use chemicals to extract drug residue from fingerprints
loughborough university
Forensic scientists have developed a new technique that can detect drug and explosive residue in fingerprint samples from crime scenes.
“Information about the presence of drug particles is a largely untapped resource,” he says. james reynolds At Loughborough University, UK. That's because investigators use a thin layer of gelatin called a gel lifter to lift the fingerprints. These introduce chemicals into the sample, making it difficult to identify the presence of trace amounts of drugs or explosives on the sample.
Source: www.newscientist.com
