Quote Originally Posted by HighPopalorum
CO actually has stricter DUID laws than Virginia, just so you know. The current law here says that any habitual user of a controlled substance who operates a motor vehicle is guilty of a DUI, even if the substance is lawfully-obtained medical marijuana. It's a de facto zero tolerance policy, that should (and apparently is) going to change in favor of a science-based limit. To my mind, that change would be a loosening, a liberalization of our DUI policy, but as you can see, everyone else disagrees.
I'd be curious about how case-law defines "habitual" in order to avoid constitutional infirmity for vagueness.