Sobriety testing may shift to determining impairment using artificial intelligence

Given the evidence against THC causing impairment, the implications are profound. Police and courts are confused by cases where cannabis testing is positive, yet sobriety testing is negative. Michelle Gray, a medical marijuana user, had her license suspended after a positive saliva test for cannabis, even though she passed a police-administered sobriety test the same night. Subsequently, Canadian police apologized to her for incorrectly suspending her licence for a week. Sobriety testing for cannabis comes under question.