Marijuana legalization in Colorado and Washington state has “produced some demonstrable and persistent benefit” to police departments’ ability to solve other types of crime, according to researchers in the Department of Criminal Justice and Criminology at Washington State University.
“Our models show no negative effects of legalization and, instead, indicate that crime clearance rates for at least some types of crime are increasing faster in states that legalized than in those that did not,” the authors write in a study published in the journal Police Quarterly.
A crime is typically considered “cleared” if authorities have identified and arrested a suspect and referred him to the judicial system for prosecution. The Washington State study examined clearance rates for crimes in Colorado and Washington from 2010 through 2015, using monthly FBI data.
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