Nowadays, 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. This technique developed have found by John Bond,the physicist. 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. Before this, police used the fingerprint that involves creating a chemical reaction with the sweat left behind on an object. But if a criminal wipes away the sweat, there is little left to react with the chemical and regular methods are useless. The new technique allows police to outwit a criminal and produce a fingerprint even if there is no sweat impression to work with. With this new technique, police can find the suspect.
for more information, visit http://news.yahoo.com/s/nm/20080905/sc_nm/crime_fingerprints_dc
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