3 major reasons why drug testing works:
Drug testing your child will discourage them from taking drugs and in turn this will protect them from illegal dangerous drug abuse.Amphetamine (speed)
Benzodiazepine (valium)
Cocaine(crack)
Marijuana (cannabis)
Methadone
Methamphetamine (Crystal Meth or Ice)
Opiates (heroin)
Buprenorphine
Ketamine
Morphine.