http://www.newscientist.com/article.ns?id=dn8938&feedId=online-news_rss20
TomSimonite
"Fingerprints from a crime scene are useless if the perpetrator's prints are not on file. But new forensic techniques now mean they can be used to determine whether a person is a smoker, uses drugs, and even which aftershave they wear - information that could help narrow down suspects."
