Search the Matrix

What strategies can be effective in reducing crime and disorder in policing? The Evidence-Based Policing Matrix is a research-to-practice translation tool that organizes moderate to very rigorous evaluations of police interventions visually, allowing agencies and researchers to view the field of research in this area. The Matrix is updated with all qualifying studies each year.

Street closures associated with drop in violent crime drops, but not property crime using two year time-series

Neighborhood – Laycock (1991)

Burglary declines 62 percent after door-to-door visits to gain community intelligence and increase property marking

Neighborhood – Lindsay & McGillis (1986)

Burglary reduced for 18 months after initiation of community policing and neighborhood watch program

Neighborhood – McGarrell et al. (1999)

Community crime prevention program leads to overall decrease in crime and increase in resident quality of life

Neighborhood – Papachristos et al. (2007)

Group of Project Safe Neighborhoods initiatives associated with greater declines in homicide in the treatment neighborhoods compared to control neighborhoods

Neighborhood – Saunders et al. (2017) [Roanoke, VA]

Drug Market Initiative (DMI) in Roanoke, Virginia significantly reduced total and property crimes in one neighborhood and violent crimes in another neighborhood

Neighborhood – Skogan et al. (1995)

After 18 monthly police-community meetings, reductions in some crimes and victimization using some measures but not others

Neighborhood – Weisburd et al. (2020)

Problem-oriented policing reduced property crime without crime displacement

Neighborhood – Sedelmaier & Hipple (2016)

Data-driven foot patrol intervention with elements of POP was associated with decreases in crime in treatment areas, but similar decreases were observed in control areas

Neighborhood – Saunders et al. (2017) [Flint, MI]

Drug Market Initiative (DMI) in Flint, Michigan, showed no significant differences in crime rates compared to control areas

Neighborhood – Saunders et al. (2017) [Guntersville, AL]

Drug Market Initiative (DMI) in Guntersville, Alabama, showed no significant differences in crime rates compared to control areas

Neighborhood – Saunders et al. (2017) [Montgomery, MD]

Drug Market Initiative (DMI) in Montgomery County, Maryland showed no significant differences in crime rates compared to control areas

Neighborhood – Weisburd et al. (2008)

Risk-focused policing program targeting juvenile risk factors has no influence on self-reported delinquency