The lawyer for four California patients has cited the Americans with Disabilities Act and the fact that Congress allowed the city of Washington’s medical marijuana initiative go into effect as the reason a federal judge should hear their case. The judge agreed as these two articles state:
http://www.mapinc.org/drugnews/v10.n319.a02.html
http://www.mapinc.org/drugnews/v10.n319.a01.html