Study: One in Ten People Have Traces of Cocaine, Heroin on Fingertips

A new study analyzing the fingerprints of ordinary people and drug addicts arrived at shocking results. Researchers hope that their findings might protect innocent people from facing unjustified allegations of drug use in the future.

British researchers came to the conclusion that traces of cocaine and heroin can be found on the fingers of every tenth person in developed countries, although most of them have never used the use drugs, according to a new study published in the Clinical Chemistry journal.