How Far Can A Urine Test Detect Drugs? Urine Testing Urine drug testing is the method most used by employers and law enforcement agencies. Urine is tested for the parent compound of various drugs, as well as their metabolites. Most commonly in a job setting, usually checks for amphetamines, cocaine, marijuana, opiates, nicotine and alcohol. … Read moreHow Far Can A Urine Test Detect Drugs?