At a factory in Anywhere, USA:
“Yeh, man. Like, I’m sorry about your hand and all, but I have a medical marijuana card. Woh, that was some good stuff. Oh, geez, I hope you don’t lose your hand. Here, try this. It is good for what ailes ya.”
How does the employer know if the marijuana detected in Jane Doe’s system was “medical marijuana” or a joint somebody handed her in the ladies room at some bar?
“...fired after her pre-employment drug test came back positive.”
Ok. I give up. How can you be fired before you are hired?
There's a halfbreed muslim alien in the White House ... calling YOU useless and is intent on destroying what you SAY you believe in.
Leave the dope smoker alone and save the sinking ship !
Treat the plants and their usage the same way other substances (alcohol) are treated as it pertains to passed law.