Information and data on criminal justice and law enforcement in general, with a special focus on drug enforcement and drug policy. Data sources include the FBI's Uniform Crime Report, various reports from the federal Bureau of Justice Statistics, and reports from the UN Office on Drugs and Crime as well as information from academic journals, thinktanks, and nonprofit research organizations.

Prohibition and Homicide Rates

(Prohibition and Homicide Rates) "The data are quite consistent with the view that Prohibition at the state level inhibited alcohol consumption, and an attempt to explain correlated residuals by including omitted variables revealed that enforcement of Prohibitionist legislation had a significant inhibiting effect as well. Moreover, both hypotheses about the effects of alcohol and Prohibition are supported by the analysis.

Arrests for Drug Offenses in the US in 2018, By Type of Offense and Substance Type

In 2018, the FBI reports there were a total of 1,654,282 arrests for all drug offenses, of which 224,982 were for sale or manufacture of any drug, and 1,429,300 were for possession of any drug.

• Of the 224,982 sale/manufacture arrests in 2018, 72,788 were for heroin, cocaine, and derivatives; 54,591 were for marijuana; 29,777 were for synthetic or manufactured drugs; and 66,171 were for other dangerous nonnarcotic drugs.

Effect Of Medical Marijuana Legalization On Crime Rates

Effect Of Medical Marijuana Legalization On Crime Rates And Limitations Of Data: "Given that the current results failed to uncover a crime exacerbating effect attributable to MML, it is important to examine the findings with a critical eye. While we report no positive association between MML and any crime type, this does not prove MML has no effect on crime (or even that it reduces crime). It may be the case that an omitted variable, or set of variables, has confounded the associations and masked the true positive effect of MML on crime.

Effect of Medical Marijuana Legalization On Crime Rates

Effect of Medical Marijuana Legalization On Crime Rates: "In sum, these findings run counter to arguments suggesting the legalization of marijuana for medical purposes poses a danger to public health in terms of exposure to violent crime and property crimes. To be sure, medical marijuana laws were not found to have a crime exacerbating effect on any of the seven crime types. On the contrary, our findings indicated that MML precedes a reduction in homicide and assault.