Regulating medical marijuana under state law makes it possible for police to protect private property:

Mendocino County sheriff's deputies arrested eight Sacramento-area men Friday on suspicion of robbing at gunpoint a Laytonville man who grew marijuana in his garden for medical use.

The men, who range in age from 18 to 24, are from Citrus Heights, Elk Grove and Sacramento, and are facing armed robbery and conspiracy charges. [Sacramento Bee]

It’s nice to see police helping patients and turning their attention towards real criminals.