The helicopter is used for catching people on the run, killers or massive grow plants. Cops like to think they have better things to do than catch someone growing 3-5 pot plants. Just my 2 cents though... This is the u.s. we like to think that we have freedom unless they suspect something. They can't spend all day looking at everyone's electricity bill or how much heat comes out of a room. What is someone left all their lights on, plus computers and t.v.'s and the oven and refridgerators and the dryer... That to me seems like alot more heat than 2 150w hps.