Public Safety
Community Violence Interruption and Hospital-Based Intervention logic model
Four police beats with 6% of the city's population accounted for 38% of nonfatal shootings last year, and about 1 in 5 gunshot patients treated at the trauma center return with another violent injury within 5 years.
Inputs
- 12 credible messenger violence interrupters and 4 hospital-based intervention specialists
- Partnership with the Level I trauma center and the city's violence prevention office
- Life coaching, relocation and emergency assistance funds
- Training in conflict mediation and trauma-informed care
Activities
- Respond to shootings within hours to prevent retaliation
- Mediate active conflicts identified through street outreach
- Engage gunshot patients at the bedside and provide 12 months of case management
- Connect participants to jobs, school, mental health care and legal help
Outputs
- 340 conflicts mediated each year
- 180 high-risk individuals enrolled in intensive life coaching
- 210 hospital bedside engagements of violently injured patients
- 95% of shootings in target beats receive an interrupter response within 24 hours
Short-term outcomes
- Most mediated conflicts show no violent follow-up at 90 days
- Enrolled participants complete individual safety plans
Intermediate outcomes
- Nonfatal and fatal shootings in target beats fall by 20% against comparison beats
- Violent reinjury among hospital program participants falls by half
Long-term impact
- Sustained reduction in gun violence in the target area
- City funds violence intervention as a permanent public safety line item
Indicators and data sources
| Indicator | Source | Frequency |
|---|---|---|
| Fatal and nonfatal shooting incidents by beat | Police department incident data and the city open data portal | Monthly |
| Violent reinjury among program participants | Trauma center registry | Quarterly |
| Conflict mediations and outcomes | Program outreach database | Monthly |
| Participant connection to employment and education | Case management system and state UI wage records | Quarterly |
Assumptions
- Interrupters keep credibility and safe access in target beats
- The trauma center maintains bedside access for program staff
Programs this model suits
- BJA Community Violence Intervention and Prevention Initiative (CVIPI) (many awards were terminated in 2025; check for a current solicitation)
- State violence prevention grant programs such as California CalVIP
- Private foundation and hospital community benefit funds
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