(05-05-2018, 01:40 PM)MalabarJag Wrote:

(05-05-2018, 01:24 PM)rollerjag Wrote: The problem with testing for marijuana is the length of time it stays detectable in urine or blood, even after the psychotropic effects have abated. Occasional users can test positive 7 days after smoking a joint but not be working under the influence.

Testing is not done daily. The idea is to find out if a person has used marijuana (or other drugs) when you hire him, not if he's sober that particular day. The odds are that if a person has used marijuana recently he'll use it again, which is a risk factor to consider when hiring if the employer believes marijuana use will negatively affect one's work.

Testing is also frequently administered randomly post-employment, and is indeed designed to see if you are under the influence while at work. 

If marijuana use is as legal as drinking alcohol, why is it fair to prohibit employment for a person who used marijuana on  the Friday night before his pre-employment drug test the following Monday, over his potential co-worker who got drunk the same night? Is that person as much, or even more, of a risk?

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