(<a href=www.newscientist.com target=_blank>New Scientist) Forensic scientists in the US are applying DNA fingerprinting methods to the cannabis plant. They say the technique, which is being used to create a database of DNA profiles of different marijuana plants, will help them to trace the source of any sample. (...) Exactly how law enforcement agencies will apply the method remains to be seen. If a link can be established between a user and a grower or dealer, casual users might find themselves in deeper trouble than they bargained for. "If you're buying marijuana from somebody with terrorist ties, it could be traced back to that person," warns Gary Shutler of the Washington State Patrol's crime laboratory division.