Boulder is not alone in sometimes using eyelid tremor as one of the “roadside maneuvers.”  These voluntary tests are intended to identify impaired drivers. Part of the standard police roadside gymnastics to identify recent THC/marijuana use is to claim to observe “eyelid tremor.” In a study first posted on-line in February, 2024, that belief is called into serious doubt. The study, largely Colorado based including significant involvement from the University of Colorado and Anschutz Medical Center The strong local research participation ties are spelled out in the... Read More