Michigan Commission: THC Level Not a ‘Reliable Indicator’ of Driving Impairment April 2, 2019 A state commission says Michigan should not set a legal limit for how much of marijuana’s active ingredient motorists can...
Coming Soon: Marijuana ‘Breathalyzers’ for Police Testing of Drivers July 14, 2015 By Natalie Grover As cannabis bans are relaxed in more U.S. states, the race is on to develop an instant roadside breathalyzer for...