“In the largest trial to date involving experienced users smoking cannabis, there was no correlation between THC (and related metabolites/cannabinoids) in blood, OF [oral fluid], or breath and driving performance. … The complete lack of a relationship between the concentration of the centrally active component of cannabis in blood, OF, and breath is strong evidence against the use of per se laws for cannabis.”
Tag: field sobriety tests
Standard roadside field sobriety tests (FST) are not reliable indicators of marijuana-induced impairment, according to a ruling by the Massachusetts Supreme Court. Attorneys Steven Epstein and Marvin Cable filed an amicus curiae brief in the case on behalf of national NORML.