A June 2016 study in the Journal of Safety Research concludes that “polydrug use, rather than marijuana, is the most common cause of drugged driving in Colorado.”
The American Automobile Association (AAA) recently released two sobering reports about marijuana and driving.
Six states that allow marijuana use have legal tests to determine driving while impaired by the drug that have no scientific basis, according to a study by the nation's largest automobile club that calls for scrapping those laws.
Hawaii lawmakers are asking how much marijuana a driver can safely consume before getting behind the wheel of a car. It's an issue they want to tackle now that Hawaii is setting up medical marijuana dispensaries. So Rep. Cindy Evans and 15 other lawmakers introdu...