The research, titled “Marijuana Legalization and Rates of Crashing Under the Influence of Tetrahydrocannabinol and Alcohol,” and published in The American Surgeon, was carried out by researchers in New Jersey at the Hackensack University Medical Center. The medical facility looked at patient data from states that had legal cannabis, as well as states that did not, and compared them over the period of 12 years. The study started in 2006 and concluded in 2018.
In order to determine these patterns, the study looked at the percentage of patients who tested positive for THC and compared it to the percentage of patients who drove under the influence of alcohol.
From the beginning, the aim of the study was to show whether or not cannabis incidents in car accidents were different in states with legal cannabis. In the words of the study, the goal was “to determine if statewide marijuana laws impact upon the detection of drugs and alcohol in victims of motor vehicle collisions.”
Overall, when the date was compared, the rate of cannabis apparent in crash patients did increase,