Wednesday, November 5, 2008
Forensics: Fingerprints can be recovered from fired bullet casings-
Science has developed a technique for retrieving fingerprints from bullet casings and bomb fragments after they have been fired and detonated. The new method, which relies on subtle corrosion of metal surfaces, is already being applied for the first time anywhere in the world by two British police forces. The patterns of corrosion remained after the surface has been cleaned, heated to 600C or even painted over. This means that traces of fingerprints stay on the metal long after the residue from a persons finger has gone.
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3 comments:
This is a very interesting article. I was not aware of how affective fingerprint detection has gotten; that is truly amazing, and i would have never thought that to be possible
this was good because this was a technique i didn't yet know about, it was well described, and it was interesting. However, it could've been longer and more descriptive. That being said, I was intrigued to learn how useful bullet casings can be in providing fingerprint and impression evidence.
i was surprised to learn that to learn that fingerprints could endure such extreme circumstances. I would have thought fingerprints were easily destroyed. The article could have been longer and more descriptive, such as how they came up with this (if that was even provided)
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