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We assessed whether Canada’s cannabis legalization was associated with changes in adult police-reported cannabis-related, property, or violent criminal incidents.
Our findings suggest that Canada’s cannabis legalization was successful in reducing cannabis-related criminalization among adults. There was also a lack of evidence for spillover effects of cannabis legalization on adult property or violent crimes.
Seasonal Autoregressive Integrated Moving Average (SARIMA) time series models evaluated relations between legalization and adult cannabis-related, property, and violent crimes, using criminal incident data from the Canadian Uniform Crime Reporting Survey (UCR-2; January 1, 2015–December 31, 2021)