I was on my smartphone when I first posted so edited down what I typed.
In the seminar for employers we went over this topic. (Not specifically the Dish story) If marijuana is legal in your state, and the employer allows it because it is legal and for medical reasons, insurance companies very well may drop that employer. Could Dish have put that person on suspension? Here's the answer. They could, but if it is for medical reasons they may actually be forced to fire them, by stating in the dismissal the employee can no longer perform their job if they must take marijuana. If someone has a back injury, and it will not get any better, and the job depends on heavy lifting etc, same scenario. The mistake some are making is putting marijuana use in some kind of a different category. Oddly, if it was an addiction, the employer has more latitude. But once the employee says he is taking a drug for medical reasons with no known end point to stop it's use, the employer virtually must fire the employee. There are people fired every day for using legally prescribed drugs for honest medical conditions, because the employer feels that the employee can no longer do the job, including in the Fire Service.
If I had to boil it down, (as the instructor did) there is a distinction between being addicted and wanting to get help to stop taking the drug, or saying you must take the drug for medical reasons. The second should be a red flag to part ways, the first takes more thought.
Edited by tampa8, 02 May 2013 - 10:24 AM.