Hair samples, nails to detect drug traces

Hyderabad July 21: Some new facts have emerged. The Forensic experts and doctors have revealed that * It is easy to identify a person whether he has taken drugs or not by testing his hair samples.* It is possible to detect 70 % of drugs used by people by testing Blood samples.* Drug residences remain in the blood for 30 days if he is a long term user.* Diazepam can be detected within 5 days of usage.* There are separate test for detecting LSD, Heroin, cocaine.* Hair samples test results will indicate the drug used, the amount used, the time period of usage such as past 1-year usage will also be available.