Although the FDA and scientific community have been critical of hair testing, that hasn't stopped employers from using it. However, workers who are already employed may be able to challenge their employers' drug testing plans in certain situations depending on labor law and local regulations. If you think you are being unjustly tested, you may have cause for legal action. We are sorry having to mention these devious techniques, but feel it is necessary to defend innocent people against wrongful accusations of drug abuse. Many drug abuse clinics offer urine testing for a fee.
Urine tests intrude on intimate bodily privacy.
Mass drug screening violates the privacy of the majority of responsible employees in order to spot a minority of alleged drug abusers, many of whom are in fact not drug abusers at all. However, the 4th Amendment does not generally apply to tests by private employers. No test is infallible. Surveys of drug testing labs have found remarkably high error rates from poor quality control. Because drug tests are highly sensitive to marijuana, random testing can promote use of other, more dangerous drugs such as cocaine and opiates, which wash out in 2-3 days, or LSD, which is rarely tested.