Drug test

A drug test is an analysis of a biological specimen to find drugs in a person's system. Urine, hair, blood, breath, sweat, and saliva can be tested. Sometimes these tests are done for employment reasons. Sometimes they are done during sports to see if a sportsperson is using illegal steroids.^[1]

1. ↑ "I spent my weekend testing drugs at a festival". The Independent. 25 July 2016. Retrieved 18 May 2017.