IACP Evidence to Action Directory
Welcome to the IACP’s Evidence to Action Topic Directory– your go-to resource for fast, accessible, and actionable summaries of research that matters to policing leaders. Each document in this list translates complex studies into concise, 1-page briefs designed for immediate use by police executives, command staff, and practitioners.
All E2A Briefs
All E2A Briefs
Does Community Policing Work? A Global Meta-Analysis on Crime Reduction
This brief discusses how community policing can reduce rates of burglary, most gun- and drug-related crime, robbery, most Part 1 crimes, and overall fear of…
Breaking the Silence: Addressing Long-Term Mental Health Effects in Policing
This brief discusses how chronic exposure to trauma and organizational silence about mental health are harming police officers. Agencies must build a supportive culture that…
Body-Worn Cameras in Policing: Evidence, Gaps, and Guidance for Leaders
This brief discusses how body-worn cameras (BWCs) have mixed and limited effects on police and community member behavior. BWCs may reduce complaints and provide evidentiary…
Contagious Fire: New Experimental Evidence on Police Shooting Behavior
This brief discusses how officer shooting behavior in high-stress situations can be powerfully shaped by the actions of peer officers. Officers are more likely to…
Fatigue on the Front Lines: How Shift Work Affects Police-Community Interactions
This brief discusses how fatigued officers are significantly more likely to escalate encounters and less likely to use de-escalation. This makes fatigue a key target…
Focus Where it Matters: How Strategic Policing Reduces Serious Crime
This brief discusses how concentrating police and city resources strategically on the few locations and individuals driving most violent crime delivers major public safety gains…
Mapping Crime by Space and Time: A Smarter Way to Target Violence in Cities
This brief discusses how breaking crime data down by both location and time of day can make predictions more accurate and help police direct resources…
Fixing the Right Broken Windows: New Evidence on Crime Reduction Strategies
This brief discusses how community-driven and problem-solving approaches to disorder policing work to reduce crime and improve safety. This style of disorder policing preserves community…
Reducing Force, Reducing Injuries: Saint Paul's Evidence-Based Shift to Leverage Control
This brief discusses how comprehensive, evidence-based training on both physical tactics and communication and teamwork can meaningfully reduce use of force severity, injuries to officers…
Rethinking Crisis Response: Challenges and Strategies for Police-Led Multidisciplinary Teams
This brief discusses how police-led multidisciplinary teams (MDTs) can improve the effectiveness of care and reduce officer strain, but they also require structure and collaboration…
