Drug testing must be fair, difficult to tamper with

URINE drug testing is commonly used for pre-employment medical examinations, workplace screening, sports and situations where drug use is suspected. However, a drug test is only as reliable as the urine sample being tested. People conducting tests must be aware that attempts can be made to substitute or tamper with samples.

One of the simplest safeguards is supervised collection by a same-sex collector while respecting the person’s privacy and dignity.