Huh? People getting busted over "legal" grows are breaking the rules somewhere myfriend unless they simply had some shady suspicious grow in the first place. Being in violation is what most "legal" grows get busted for, such as growing in an apt, a rented home, within a government building zone or school zone. If you are some closet grower & you are not in violation you wont be in the same situation. Cops cannot go kick in someones door because someone gave them a "tip". Unless straight out lying, & then the person who gave the tip would be in trouble with the law.
Example, my ex can go tell LEO I have plants.. IF they wanted to do anything about it, they would first have to go through the hoops of gathering evidence such as watching the house for traffic, maybe a heli to flyby w/ flir. That in itself does not happen in a day, & IF they have enough evidence to search your shit & take it.. That only means one thing... the Growers were doing bad shyt to begin w/ if they were having alot of traffic in & out.. &/or have a Bigass Grow that had their house all Lit up by the Heli.
Smelling MJ on someones property is not good enough now days because they need to be sure whether they are going to get a warrent expecting to find dozens of plants.. rather being surprised & embarresed by busting some legit personal closet grow.
Think about it, they only want the people evading taxes w/ their grow ops.