Did Crime Rates Rise After Colorado Legalized Marijuana?
Keywords:Marijuana legalization, regression analysis
Using monthly crime reports from Denver’s Police Department between January 2010 and December 2014, the authors endeavor to show if there was a break in the trend line of seven different crimes (homicide, rape, aggravated assault, burglary, robbery, larceny, and motor vehicle theft) following Colorado’s legalization of marijuana in late 2012. After adjusting for seasonal components (some crimes tend to be higher in summer months), the trend lines reveal no break for crimes against persons. But, three of the four trend lines for crimes against property do reveal a significant decrease after legalization.
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