i cant quote now, but someone has posted that yes you need a warrant to do this, and it is too expensive to do for the little man(its not really used anymore) i too believe that it is a fear tactic more than being a way to get any type of busts. let the people believe we can do anything we want and they will be scared of us. keep a small garden and dont worry about it or talk about it. on the other hand if you have a known dealer living on your property they sure could be watching him/her. you could always plead ignorance, but...