Sure about that? The first paragraph of your link is pretty ambiguous, both in the vague criterion for "tested positive" in the first 10% and the unspecified do

Sure about that? The first paragraph of your link is pretty ambiguous, both in the vague criterion for "tested positive" in the first 10% and the unspecified doubled number for "had used pot within hours of a crash"... how many hours before for the crash 1st group? A urine or blood test could show up to 2 weeks prior. What number doubled in the second? It also fails to acknowledge that 2013 had the least number of fatalities in Washington State in over a decade[WSTC data, bullet 7]. 2015 NHTSA: http://blogs.seattletimes.com/pot/2015/02/11/federal-study-drivers-who-have-consumed-pot-are-not-more-likely-to-crash-than-those-who-are-sober/ http://blogs.seattletimes.com/pot/2015/02/11/federal-study-d... This BBC/SpeedTV video from 2010 sums it up, if you have 5 minutes to judge for yourself: https://www.youtube.com/watch?v=TzKjFiGFrcU https://www.youtube.com/watch?v=TzKjFiGFrcU As always, YMMV.