A woman gives her fingerprints to join a petition in a file photo. (Alessandro Bianchi/Reuters)From Yahoo News/Reuters
LONDON (Reuters) - It's a discovery that would make even Sherlock Holmes proud. British scientists have developed a new crime-fighting technique that allows police to lift fingerprints from bullets even if a criminal has wiped down a shell casing.
Authorities in Britain and the United States used the method to re-open three cold cases, including a U.S. double murder that police are now optimistic of solving, said John Bond, the physicist who developed the technique.
"In one case there was enough evidence that could lead to an identification of an offender," said Bond, a researcher at the University of Leicester and consultant at Northamptonshire Police in Britain.
The conventional method of taking fingerprints has been around for more than 100 years and involves creating a chemical reaction with the sweat left behind on an object to produce an image police can use.
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