A bill that would have made the presence of just a little itty bit of weed in your bloodstream, even if you toked up a few days ago, worth a DUI prosecution was killed in the California legislature recently. The legislation was nixed by the Assembly Public Safety Committee.
AB 2500 by Assemblyman Jim Frazier would have imposed a 2 nanograms per milliliter THC blood limit on the state’s drivers. Medical marijuana defenders were outraged because THC metabolites can stay in your blood days after the high has worn off: