Quite before the workplace drug testing came into existence, individuals in treatment programs attempted to destabilize their experiments in order to hide their drug abuse with heroin. The drug testing program led to an explosion of techniques and materials designed to prevent the identification of illicit drug use previously, when the workplace drug testing program began. Urine workplace samples have always been subject to alteration or substitution, initially involving household products and simple dilution (in vitro and in viva dilution decreasing the drug analyte concentrations below administrative cutoffs) and, more at present, involving a multitude of adulterations Aimed at destroying the drug in the sample or snooping with its analysis) and replacement, substitution of the urine specimen with drug-free urine or another liquid with “normal” characteristics) products that are available commercially and through the Internet. Manufacturers of these products continue to change their composition and market the development of new products that are not easily identified by regulatory agencies and the drug-testing laboratories they supervise.
Urine is the most commonly used specimen in workplace drug-testing programs. It’s easy accessibility in practical amounts, homogeneity, and noninvasive collectability quickness led to it being the only specimen type allowed for 2008 to be used for US federal workplace programs.
Military and athletic programs are some drug testing series that require observed collections. Because of individual privacy rights, most collected works for workplace programs are unnoticed, providing ample opportunity for benefactor to alter their samples. Well observed collections that occurred under precise restricted conditions have also been subject to an attempt to weaken the drug test results.