Tuesday, April 27, 2010
An Interesting Fingerprinting Technique
I'm not sure if there are any fingerprint techs who read this blog, but for those who work in law enforcement or related fields, I wanted to pass along an interesting technique for fingerprinting hands that have decomposed beyond the point of being able to print them in the normal fashion. It is an unusual technique that is virtually unknown in the US (it was passed along to me via video from a forensics team in South Africa). So you have a hand which would normally be considered too decomposed to pull prints from. Simply pour boiling water over the fingers and palm. You will see the muscles contract and the fingers rise up. Dry the fingers and palm, dust the hand like you are dusting for latent prints, take some white fingerprint tape and proceed to print the fingers. You now have mirror images of the fingerprints on the tape which I am told are quite accurate and useful for identification. Interesting.