Pot Critic Tests 3 Times Over Proposed Limit — While Sober

«There’s a big problem with tests which measure THC levels in the blood. That being, those tests measure THC levels just fine, but they don’t do shit when it comes to measuring actual impairment — which is why those tests are a piss-poor way to enforce a law against driving while impaired on cannabis.
That simple fact has been highlighted by the spectacular failure of Denver Westword pot critic William Breathes to pass Colorado’s blood test for THC-impaired driving. Breathes not only flunked the test, but he tested nearly three times over the proposed limit of five nanograms per milliliter of blood — while sober.»