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.

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Micro Places – Bichler et al. (2013)

Problem-oriented policing, focusing on outreach to motel owners and operators, code enforcement, and permit ordinance to increase pressure on uncooperative motel operators

Micro Places – Braga & Bond (2008)

Focus on hot spots of crime leads to reductions in crime and disorder calls for service

Micro Places – Groff et al. (2015) (Offender Focused)

An approach focusing on known offenders led to a reduction in violent crime and violent felonies

Micro Places – Kennedy et al. (2015) Colorado Springs

Allocating police resources to high-risk areas, derived from risk terrain modeling (RTM) reduced crime in target areas

Micro Places – Kennedy et al. (2015) Glendale

Allocating police resources to high-risk areas, derived from risk terrain modeling (RTM) reduced crime in target areas

Micro Places – Kennedy et al. (2015) Kansas City

Allocating police resources to high-risk areas, derived from risk terrain modeling (RTM) reduced crime in target areas

Micro Places – Kennedy et al. (2015) Newark

Allocating police resources to high-risk areas, derived from risk terrain modeling (RTM) reduced crime in target areas

Micro Places – White & Katz (2013)

Problem-oriented policing at convenience store locations led to a 40% decline in calls for service at target stores.

Micro Places – Blattman et al. (2021)

Combination of hot spots policing and municipal services led to significant crime reductions that were offset by larger displacement effects

Micro Places – Chainey (2022)

The distribution of forensic property marking kits significantly reduced burglaries during a six-month follow-up period.

Micro Places – Chainey et al. (2023)

Hotspot policing led to significant reduction in robberies and thefts, but no significant effects were found for assaults or vehicle crime

Micro Places – Cohen et al. (2003)

Police raids on nuisance bars suppressed drug activity around those bars during the raids, with effects vanishing afterwards.

Micro Places – Koper et al. (2013)

Short-term patrols with LPR devices reduced different crimes depending on how the LPRs were used

Micro Places – Rosenfeld et al. (2014) (Directed patrol + enforcement)

Directed patrol plus enforcement activities reduced total firearm violence, but produced no change in firearm robberies

Micro Places – Sherman & Rogan (1995)

Crack house raids reduced crime for about 12 days; crime reductions decayed quickly

Micro Places – Sherman et al. (1989)

Repeat Call Address Policing (RECAP) had no impact on calls at commercial addresses but reduced calls at residential addresses

Micro Places – Wheeler & Phillips (2018)

Combination of automatic license plate readers and temporary roadblocks was associated with crime declines in some analyses and crime increases in others

Micro Places: Groff & Taniguchi (2019)

Citizen burglary notifications in high-risk areas did not reduce burglary in either of the two counties where it was tested but did produce a significant reduction when data from both counties was combined

Micro Places – Hunt et al. (2014)

Predictive policing found no statistical difference in property crime

Micro Places – Kyvsgaard et al. (2022)

Property marking program failed to reduce home burglaries

Micro Places – Phillips et al. (2016)

Targeted police raids within drug and violent crime hot spots did not significantly impact Part I crime

Micro Places – Ratcliffe et al. (2021)

The use of predictive policing software to target hot spots with police activity did not lead to significant reductions in violent or property crime

Micro Places – Santos & Santos (2016)

Offender-focused intervention within residential and property crime hot spots did not significantly impact overall crime or hot spot arrests

Micro Places – Sorg (2015)

GunStat program did not reduce violent crime during treatment period and was associated with significantly higher levels of gun crime during post-treatment period

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