Gadgehit writes: "Our fingerprints may reveal more than we expected if researchers at Sheffield Hallam University in the UK are to be believed. The researchers have come up with a way to figure out what substances you have touched or taken, using secretions found on a fingerprint."
Press release added with more information.
I can't believe Sheffield Hallam came up with this, crappy Uni from what i've heard.
I wish this article had more info though. Kind of lacking.