Right now, GW Pharmaceutical is about to patent CBD oil and extracts. (They are a pharmacy in England.)
This means that once they achieve the patented status, they can stop dispensaries that utilize CBD. And one activist, Lynnette Shaw, is firmly convinced that they will utilize the patent to go after anyone using any cannabis - even their own home grown.
Calif's legislature is about to tighten up the regulations on medicinal use and dispensaries, allowing the local police more police state powers. (Should that legislation become law.)
The DOJ is not supposed to do any more busts in California - but there was a major bust in San Jose Calif over the past week. Not sure how it was accomplished. Supposedly Congress cut off the funding for raids, but they still seem to be on going.
And a person is arrested for marijuana every 36 minutes in this state. (Despite the Golden state's reputation as being super-liberal.) And often the penalty for attempting to do home grown is a SWAT style raid - so that your dogs are killed, and you are thrown to the floor. We are not necessarily meaning raids where massive quantities of pot are being grown - I have known people who had smallish gardens of 12 to 14 plants that got raided. Grow a few plants and watch them kill your dogs!