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David Ovalle and Laurie McGinley, Washington Post, August 30, 2023. Dr. Igor Grant spoke to the Washington Post regarding the US Department Health and Human Services recommendation and the implications of rescheduling marijuana from Schedule I to Schedule III. Read the full article here.

Dr. Tom Marcotte and colleagues recently published their findings in JAMA Psychiatry of a double-blind, placebo-controlled, parallel randomized clinical trial that evaluated 184 cannabis users on aspects of field sobriety testing (FST) used by law enforcement as a tool to detect cannabis impairment. The study found that more specific roadside testing of cannabis-impaired drivers is needed.

Click HERE to read the full article in JAMA Psychiatry

Click HERE to read JAMA Psychiatry's Editorial of this article

Click HERE to read UC San Diego's article "Can Field Sobriety Tests Identify Drivers Under the Influence of Cannabis?"

Click HERE to read CBS8's article "Study: Field Sobriety Tests are Inadequate at Identifying Drivers Under the Influence of Cannabis"

Click HERE to read City News Service's article "Study: Field Sobriety Tests are Insufficient for DUI Cases Involving THC"

The California Department of Motor Vehicles (DMV) is collaborating with the California Highway Patrol (CHP) and the Center for Medicinal Cannabis Research (CMCR) to conduct a study in which participants will smoke THC or placebo and then drive an automobile along a test track in Sacramento. A trained law enforcement officer will subsequently evaluate them for impairment. Click HERE to learn more about the study.

Drs. Robert Fitzgerald and Thomas Marcotte recently published an article in Clinical Chemistry on cannabis and driving. They demonstrated that there was no correlation between THC concentrations in biofluids and driving performance. The study also examined the impact of adding toxicology results to field sobriety test evaluations as a way of improving the accuracy of driving under the influence determinations.

Click HERE to read the full article in Clinical Chemistry.

Click HERE to listen to Clinical Chemistry's podcast interview with Drs. Fitzgerald and Marcotte.