What does it do for MMJ patients who aren't impaired, but can show up to 200 ng (at average) of THC.
And THC is fat soluble, so it can stay in your body for up to six weeks.
Another thing that just occured to me - how the hell are they going to analyze these things? Piss tests? Violation of the 4th Amendment.
I prefer a strong law dealing with distracted driving - even had one moron yapping on the phone run a red light and nearly hit my car driving the wrong way before she got off in the next block - damn lucky too - a cop would have busted her had she done that amazing performance 15 seconds later. Saw a motorcycle cop drive up on the same road and entirely missed the scene.
That is more dangerous than being stoned and driving.