I assume that most...if not all...states have a separate "driving while impaired" law or a similar clause attached to their DUI laws.I've already mentioned my situation...if I was ever stopped for weaving,for example,blew a 0.000,had no evidence of drugs on my person or in my car I assume that I could still be charged.But without a breathalyzer...or blood test...or video I think they'd be hard pressed to convict me.
DUI, at least in Alabama means Driving under the influence.
It used to be DWI, driving while intoxicated. So, I would assume you would need to be under the influence of something.
Or not.
BTW. I wonder how many housewives, just for instance, get away with driving under the influence of say, narcotics? Or how many pot smokers get away with driving under the influence? Far as I know narcotics and pot are rarely, if ever, tested for.