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Center for Gun Policy and Research


The Johns Hopkins Center for Gun Policy and Research is engaged in original scholarly research, policy analysis and agenda-setting public discourse. Our goal is to bring public health expertise and perspectives to the complex policy issues related to gun violence prevention.

An important part of the Center's mission is to serve as an objective and informative resource for the news media, thereby providing the public with accurate information about gun injuries, prevention strategies, and policies.

What's New?

We are accepting applications for the 2019 Summer Youth Institute. Learn more.

Policies to Reduce Gun Violence in Illinois: Research, Policy Analysis, and Recommendations

A new Center report identifies weaknesses or gaps in current Illinois law and offers ten recommendations to reduce gun violence. The report, Policies to Reduce Gun Violence in Illinois: Research, Policy Analysis, and Recommendations, was written by Cassandra K. Crifasi, Alexander McCourt and Daniel W. Webster.

Enrollment for GVP MOOC Now Open

Learners may now enroll to take “Reducing Gun Violence in America: Evidence for Change,” a massive open online course on Coursera. The purpose of the MOOC is to help learners understand relevant legal issues and effectively use data that are most relevant to policy debates on gun violence. Learners will gain an understanding of the interventions with the greatest impact on gun violence and common concerns and arguments made about gun policies. Previous Bloomberg School MOOCs, which by design are tuition-free, have attracted a total of over 6 million registrants from around the world.

  • To enroll, please click here.

Dr. Cassandra Crifasi speaks at TEDxCollegePark: 

The Surprising Facts a Gun Owner Discovered Through Her Research  
June 21st at 2:05pm 
Watch live here:

Prosecuting Background Check and Straw Purchase Violations Depends on State Laws

New research from the Johns Hopkins Center for Gun Policy and Research examines prosecutions following tougher sentencing for straw purchases in PA and a MD court decision that redefined private firearm transfers.

Daniel Webster Named Bloomberg Professor of American Health

Center director Dr. Daniel Webster is the first endowed Bloomberg Professor of American Health.

Estimating the Effects of Law Enforcement and Public Health Interventions Intended to Reduce Gun Violence in Baltimore

This new report evaluates the effects of a number of law enforcement and public health strategies Baltimore has used to try to curb gun violence. The report can be downloaded here.

Concealed Carry of Firearms: Facts Vs. Fiction

The policy brief addresses a number of arguments that supporters of right-to-carry laws in general, and concealed carry reciprocity in particular, make in support of these laws. The policy brief corrects these assumptions, and puts forward eight conclusions supported by public health research. Please click here to access or download a copy.

Gun Center Staff and Faculty at APHA

3277.0: Firearm Safety: Current and emerging issues
Monday, November 6, 2017
12:30 – 2:00 p.m.

Storage Practices of U.S. Gun Owners
Cassandra Crifasi

Guns on Campus: Using Research and Strategic Communications to Inform Policy
Alicia Samuels

Center director Daniel Webster named 2017 recipient of the Distinguished Alumnus Award

Award given by the Johns Hopkins University Alumni Association.
For more information, please click here.

Weekly Graduate Seminars on Injury Research and Policy, focused on violence prevention research

Instructor Dr. Daniel Webster
Mondays 12:10 – 1:20 p.m.
All seminars will be recorded and videos will be posted here once available.
For more information, contact Shani Buggs at

Legal Gun Carrying in Public Places: Impacts on Violence and Policy Implications
Monday, August 28, 2017
Daniel Webster and Alex McCourt, Johns Hopkins Center for Gun Policy and Research, Dept. of Health Policy and Management
Watch the recorded seminar here.

Use of Social Media Data in Violence Prevention
Monday, September 11, 2017
Mark Dredze, PhD, Dept. of Computer Science, JHU
Watch the recorded seminar here.

Impacts of Drug Policy on Violence
Monday, September 18, 2017

Daniel Webster and Michael Boticelli.
Watch the recorded seminar here.

Racial Redlining and Violence in Philadelphia
Monday, Sept 25, 2017

Sara Jacoby, PhD, MPH, RN, University of Pennsylvania School of Nursing
Watch the recorded seminar here.

A Comparison of Two Gun Violence Reduction Strategies: Successes and Challenges in Reaching Gang-Involved Youth and Young Adults
Monday, Oct 2, 2017

Caterina G. Roman, Ph.D., Temple University, Dept. of Criminal Justice
Watch the recorded seminar here.

Gender-Based Violence and Access to Justice and Support Services
Monday, Oct 9, 2017
Michelle Decker, ScD, Associate Professor and Director, Women's Health & Rights Program, Center for Public Health & Human Rights, JHBSPH

Watch the recorded seminar here.

Promise and Pitfalls of Proactive Gun Law Enforcement
Monday, Oct 16, 2017
Cynthia Lum, PhD, Center for Evidence-Based Crime Policy, George Mason University

Watch the recorded seminar here.

Firearms on College Campuses: Research Evidence and Policy Implications

This report reviews the evidence surrounding the relationship between civilian gun carrying, violent crime, and mass shootings and the factors unique to public safety on college campuses. Read the report here.

Dr. Cassandra Crifasi Winner of the Jess Kraus Award for paper in Injury Epidemiology
Assistant Professor Crifasi will accept the award during a ceremony on May 25th at Columbia University.
For more information on the award, please click here.

New Fact Sheet on the Gun Center:
We have a new fact sheet describing our Center and highlighting some of our accomplishments.

Center director Daniel Webster examines some hopeful possibilities that exist for a controversial public policy conundrum during his TEDMED talk. Please email Alicia Samuels ( for information on how to watch. A copy of his talk (as prepared for delivery) has been posted here.

Center director Daniel Webster gave the Distinguished Faculty Seminar at the University of Michigan on October 16th. Click here to watch his talk.

Center director Daniel Webster's research is highlighted in the Joyce Foundation's annual report. Listen to his story here.

Updated Evidence and Policy Developments on Reducing Gun Violence in America edited by Daniel W. Webster and Jon S. Vernick

book coverThis digital update to Reducing Gun Violence in America presents new research and policy developments in the effort to address the staggering toll of gun violence in the United States.  

An essential companion to Reducing Gun Violence in America, the reliable, empirical research and legal analysis in this e-book will help lawmakers, opinion leaders and concerned citizens identify policy changes to address gun violence that takes an average of 80 lives every day.

If you prefer to read the Update on your e-reader, please click here.

In the News​

Highlighted Research

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