“Three years after recreational marijuana legalization, changes in motor vehicle crash fatality rates for Washington and Colorado were not statistically different from those in similar states without recreational marijuana legalization.” - https://ajph.aphapublications.org/doi/abs/10.2105/AJPH.2017.303848
https://newsroom.aaa.com/2016/05/fatal-road-crashes-involving-marijuana-double-state-legalizes-drug/
Our State Patrol and local law enforcement have had to place a new emphasis on “impaired driving” because the problem of people driving during and after using marijuana has become so bad.