Depends on where you live, how much you grow and for what purpose, if growing industrial hemp is legal or not where you live, local police priorities, etc but here's how legal hemp helps in defense of a cannabis bust.
Hemp is now legal to grow in every county in my state.
Local sheriff and police agencies in my county and city announced yesterday they would not pursue small grow operations and possession arrests on marijuana charges because hemp in fact can carry trace amounts of THC.
This means that when busted, a grower can claim he/she is growing hemp and not marijuana.
It's then up to prosecutors to prove it's marijuana and not hemp. This means the evidence as in every plant seized, would need to be lab tested by a certified police lab and each test can cost thousands of dollars.
The cost of prosecuting such a case is not worth it, especially when the punishment can be haggled down to no jail time with a fine much less than what the cost of testing evidence and prosecuting the case would be.
Basically, what it amounts to, is thanks to legal hemp, police and court bureaucracy has priced itself to a point where it's no longer profitable to prosecute small marijuana grow operations.
Adjoining counties, the more conservative and prohibition supporting counties in my state, in a rebuttal to the more liberal counties and cities of my state, have announced that they will prosecute every small grow they bust no matter how much it costs.
It's like real estate....location location location.
But yeah...from here on out..... I'm growing hemp