Currently do drug test at the place of work has become a widespread experience and consequently it has become much important for the employers to uncover employees attempt to pass a drug test with special substances and even home remedies. Pretty often the employees trying to pass a drug test at the work place for their own good.

The urine drug test is the most common means of conducting a drug test at the workplace and this can provide far better results than the saliva test or a hair test. Conducting a urine test is also much easier and cost effective. Therefore most of the employers prefer the urine test for workplace drug testing.

And they need to know possible ways to defraud the test results:

• Some people for such purposes buying over the counter products, based on chemicals with nitrates were once used to mask THC, which are now commonly tested for.
• Another donors could try to dilute the urine sample and to tamper test results. This is achievable by adding fluid (water) in to the urine sample.
• Urine sample substitution when donor's urine substituting with another persons or a synthetic sample also possible. ·
• The easiest way to pass a drug test is not to take the drugs - everybody knows it, but unfortunately not everybody follow it.

Our specimen validity (urine adulteration) test would show up any of this ways to pass a drug test.