Colorado Supreme Court Rules Companies Can Fire Employees for Using Marijuana Adan Posted on June 15, 2015 Posted in Aggregated No Comments Tagged with Medical Tyranny It may be legal to use, but the Colorado Supreme Court ruled today that employees can be fired for testing positive to THC in a drug test. Share this:Share Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email