Cannabis and Cars- Scientific and Legal Implications of Cannabis Use and Driving (Video)

In this video podcast, Rod discusses the intersection of law and science that arises from cannabis use and driving. Traditional DUI tests are primarily oriented towards detecting alcohol impairment. Do these tests work for cannabis impairment? If not, is it possible to create cannabis-specific testing protocols, and accompanying laws and regulations, that accurately measure impairment while not unjustly criminalizing unimpaired cannabis users?