Cardiff Violence Prevention Model Toolkit

What to know

Violence is preventable when everyone plays their part. Partnerships between hospitals, law enforcement agencies, health departments, and community organizations can help communities better understand where violence is happening and create collaborative solutions. Get what you need to introduce the Cardiff Violence Prevention Model in your community.


More than half of violent crime in the United States is not reported to law enforcement, according to the U.S. Department of Justice. That means cities and communities lack understanding of where violence occurs, which limits the ability to develop successful solutions.

The Cardiff Violence Prevention Model provides a way for communities to gain a clearer picture about where violence is occurring by combining and mapping both hospital and police data on violence.

But the Cardiff Model is more than just an approach to map and understand violence. The Cardiff Model provides a straightforward framework for hospitals, law enforcement agencies, public health agencies, community groups, and others interested in violence prevention to work together and develop collaborative violence prevention strategies.

Cardiff model toolkit

The Cardiff Model Toolkit includes a printable poster and guidance materials for hospitals, law enforcement, building partnerships, and external communications and media relations. It also includes legal, technical, and financial considerations and a readiness checklist.

Promotional materials

The Cardiff Violence Prevention Model

Additional information

This material was developed by the Centers for Disease Control and Prevention (CDC). The pilot of the Cardiff Violence Prevention Model was a collaboration between the CDC, DeKalb County Police Department, Grady Health System, the University of Pennsylvania, and the CDC Foundation. Support for this pilot was provided by the Robert Wood Johnson Foundation.

Keep in mind, sharing injury information from hospital records in accordance with the local legal and regulatory environment may require collaboration with the local or state public health department.

Questions about the Cardiff Model?‎

If your community is considering implementing the Cardiff Model, contact the CDC Cardiff Model team to join the network:
  • Mercer Kollar, L.M., Sumner, S.A., Bartholow, B., Wu, D.T., Moore, J.C., Mays, E.W., Atkins, E., Fraser, D.A., Flood, C.E., and Shepherd, J.P. (2019). Building capacity for injury prevention: A process evaluation of a replication of the Cardiff Violence Prevention Program in the Southeastern United States. Injury Prevention. Published Online First: 16 April 2019. DOI: 10.1136/injuryprev-2018-043127
  • Levas, M. N., Hernandez-Meier, J. L., Kohlbeck, S., Piotrowski, N., & Hargarten, S. (2018). Integrating population health data on violence into the emergency department: a feasibility and implementation study. Journal of trauma nursing, 25(3), 149-158. doi: 10.1097/JTN.0000000000000361
  • Boyle, A. A., Snelling, K., White, L., Ariel, B., & Ashelford, L. (2012). External validation of the Cardiff model of information sharing to reduce community violence: natural experiment. Emergency Medicine Journal. doi:10.1136/emermed-2012-201898
  • Davison, T., van Staden, L., Nicholas, S., & Feist, A. (2010). Process Evaluation of Data Sharing Between Emergency Departments and Community Safety Partnerships in the South East. London, United Kingdom: Home Office.
  • Droste, N., Miller, P., & Baker, T. (2014). Review article: Emergency department data sharing to reduce alcohol-related violence: A systematic review of the feasibility and effectiveness of community-level interventions. Emergency Medicine Australasia, 26(4), 326-335. doi:10.1111/1742-6723.12247
  • Florence, C., Shepherd, J., Brennan, I., & Simon, T. (2011). Effectiveness of anonymised information sharing and use in health service, police, and local government partnership for preventing violence related injury: experimental study and time series analysis. BMJ : British Medical Journal, 342, d3313. doi:10.1136/bmj.d3313
  • Quigg, Z., Hughes, K., & Bellis, M. A. (2012). Data sharing for prevention: a case study in the development of a comprehensive emergency department injury surveillance system and its use in preventing violence and alcohol-related harms. Injury Prevention, 18(5), 315-320.
  • Florence, C., Shepherd, J., Brennan, I., & Simon, T. R. (2014). An economic evaluation of anonymised information sharing in a partnership between health services, police and local government for preventing violence-related injury. Injury Prevention, 20(2), 108-114. doi:10.1136/injuryprev-2012-040622
  • Shepherd, J. P. (2001). Emergency medicine and police collaboration to prevent community violence. Annals of emergency medicine, 38(4), 430-437. doi:10.1067/mem.2001.114317
  • Shepherd, J. P., & Sumner, S. A. (2017). Policing and public health—strategies for collaboration. JAMA, 317(15), 1525-1526. doi:10.1001/jama.2017.1854