Study: Percentage of THC impaired drivers jumped after marijuana legalization

Screen Shot 2015-09-14 at 11.10.25 AM9/10/15–New data shows the number of drivers who tested positive for marijuana and were involved in deadly crashes in Washington increased nearly 50 percent from 2013 to 2014. The Washington Traffic Safety Commission says marijuana involvement in fatal crashes remained steady over the years, for sale and then spiked in 2014, diagnosis when Washington also legalized marijuana. Read