Gun violence

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This special collection brings together evidence and insights from nonprofits, foundations, and research organizations working to understand the full impact of firearm use and gun violence in the US. By providing us with analyses of current state and federal laws as well as valuable data on suicides, homicides, accidents, and mass shootings, these organizations seek to inform sound public policy and to curb this ongoing public health epidemic.

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Reducing Violence and Building Trust: Data to Guide Enforcement of Gun Laws in Baltimore

August 28, 2020

This report is the product of the Reducing Violence, Building Trust: Data to Guide Gun Law Enforcement in Baltimore project. Researchers from the Johns Hopkins Center for Gun Policy and Research (JHCGPR) collected and analyzed data relevant to the enforcement of laws restricting the possession of firearms by prohibited individuals and unlawful carrying of concealed firearms to provide data-driven recommendations for more fair and effective practices. The project was designed to help inform the response to the dual crises in Baltimore—extraordinarily high rates of gun violence, and gun law enforcement practices that, in some cases, have violated the law and more generally weakened community members' trust in the police.

Evidence Concerning the Regulation of Firearms Design, Sale, and Carrying on Fatal Mass Shootings in the United States

January 30, 2020

This report calculates state‐level annual incidence of fatal mass shootings from 1984–2017. The analysis suggests that laws requiring firearm purchasers to be licensed through a background check process supported by fingerprints and laws banning large‐capacity magazines are the most effective gun policies for reducing fatal mass shootings.

The Impact of Handgun Purchaser Licensing Laws on Gun Violence

June 12, 2019

There is a major flaw in federal firearm laws in the U.S. and in most states' laws; prohibited purchasers can acquire firearms from unlicensed private sellers without subjecting themselves to background checks and record-keeping requirements. Violent criminals and traffickers exploit this weakness with fatal consequences. This report discusses the need to improve background checks and handgun purchaser licensing laws which would result in reduced gun deaths.