CONTACT Number of THC+ drivers spikes in Washington - Dr. Christian Thurstone

The number of traffic cases involving drivers who tested positive for marijuana use is projected to increase this year by more than 50 percent over 2012.

Here’s a look at the numbers, analyzed and reported by Washington state toxicologist Fiona Couper. We’ll follow up with the final numbers when they’re reported.


About Christine Tatum

Christine Tatum is a veteran journalist whose communications and market intel firm, Media Salad, Inc., helps companies and nonprofit organizations win business and stay ahead of their competitors. Her professional stops include the Chicago Tribune, The Denver Post, the (Arlington Heights, Ill.) Daily Herald and the (Greensboro, N.C.) News & Record. Her work also has appeared in The Wall Street Journal, and New York Times.

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