“Fewer than 1 percent of suspected impaired drivers involved in such crashes tested positive for nothing but marijuana. New Times’ findings, based on a records request satisfied by DPS this week, jibe with statistics we reported earlier this month in our feature article about Arizona’s zero-tolerance marijuana-DUI law. Drivers suspected of impairment in crashes that hurt or killed people in Phoenix, Chandler, and Scottsdale were rarely found to be impaired by marijuana, our earlier research showed.”
formerly http://blogs.phoenixnewtimes.com/valleyfever/2013/05/marijuana_not_a_significant_fa.php
