Drug test Drug test A drug test is a technical analysis of a biological specimen, for example urine, hair, blood, breath, sweat, and/or oral fluid/saliva — to determine the presence or absence of specified parent drugs or their metabolites. Major applications of drug testing include detection of the presence of performance enhancing steroids in sport, employers and parole/probation officers screening for drugs prohibited by law (such as cannabis, cocaine, methamphetamine, and heroin) and police officers testing for the presence and concentration of alcohol (ethanol) in the blood commonly referred to as BAC (blood alcohol content). BAC tests are typically administered via a
Drug Recognition Expert categories of classifications a DRE is looking for, including; central nervous system depressants (benzodiazepines), CNS stimulants (methamphetamine), dissociative anesthetics (PCP), cannabis, hallucinogens (mushrooms), inhalants (glue), and narcotic analgesics (opiates). DREs often testify in court, where the term "expert" has important legal implications. Some jurisdictions do not allow the term Drug Recognition "Expert." In these jurisdictions DREs are called Drug Recognition Evaluators, or Drug Recognition Technicians. The acronym 'DRE' has been used to refer not just to the DRE officers, but also to the examination they perform, the "Drug Recognition Examination", or "Drug Recognition Evaluation." The confluence of acronyms leads to