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John Jay College Research and Evaluation Center

John Jay College Research and Evaluation Center

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  • September 1, 2026 JohnJayREC

    Responding to Firearm Possession Charges in New York City

    Public safety outcomes of the Bronx Osborne Gun Accountability and Prevention program (BOGAP)

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  • June 1, 2026 JohnJayREC

    Recidivism: Use with Caution

    Measuring the outcomes of criminal justice interventions should include recidivism, but exclusive reliance on recidivism is ill-advised and potentially reckless.

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  • February 13, 2026 JohnJayREC

    Community-Led Strategies to Reduce Gun Violence

    Building the CVI evidence base for the future will require theoretically informed, intentionally causal evaluation studies.

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  • June 3, 2022 JohnJayREC

    Community Violence Intervention at the Roots (CVI–R)

    Grassroots efforts to reduce violence could be called Community Violence Interventions at the Roots (or CVI-R).

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  • November 9, 2020 JohnJayREC

    Reducing Violence Without Police: A Review of Research Evidence

    JohnJayREC reviewed the evidence for policies and programs that reduce violence without relying on police.

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  • January 1, 2020 JohnJayREC

    Easily Overstated

    The notion that youth confinement fell in response to progressive reforms is merely appealing rhetoric.

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Research Products

September 14, 2024 JohnJayREC

Reimagining Community Safety

The National League of Cities supported local government leaders in five U.S. cities working to reimagine public safety.

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August 1, 2024 JohnJayREC

Ticket Punch: The Consequences of Fare Evasion Enforcement in New York City Subways

Researchers investigated transit fare evasion in New York City subway stations between 2018 and 2023.

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March 18, 2024 JohnJayREC

Color Contrast: Racial and Ethnic Disparities in New York City Law Enforcement

Racial differences in police contacts are not de facto evidence of bias, but monitoring could help guard equity.

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April 28, 2021 JohnJayREC

The Juvenile Justice Response to Violence

Even during periods of relatively low violence, the incidence of violent behavior by and among young people is a prominent issue. Policymakers and communities always need effective methods of addressing violent acts by youth.

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July 17, 2020 JohnJayREC

Reducing Gun Violence in New York City

Causal relationships are difficult to identify in complex and multi-part initiatives, but New York City’s falling rate of gun violence suggests that recent community initiatives may have helped to sustain previous gains.

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November 11, 2019 JohnJayREC

Older Adults Responsible for Total Growth in Drug Arrests

The entire increase in drug crime arrests during the past decade was due to growing numbers of arrests involving adults ages 25 and older. Youth under age 18 and even young adults under age 25 were far less likely to be arrested for drug crimes in 2018 than any time in the past two decades.

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July 27, 2018 JohnJayREC

Good Questions: Building Evaluation Evidence in a Competitive Policy Environment

Policymakers and practitioners in the justice sector should consider evaluation research as a portfolio of strategic investments in knowledge development. Randomized controlled trials are merely one asset in a broader investment strategy.

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May 24, 2018 JohnJayREC

Gun Violence is not an “Urban” Problem

by Jeffrey A. Butts JohnJayREC DataBits 2018-01 (revised Jan 2020) Policy debates

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May 15, 2018 JohnJayREC

Critical Care: The Important Role of Hospital-Based Violence Intervention Programs

Douglas Evans and Anthony Vega In Denormalizing Violence: A Series of Reports

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October 2, 2017 JohnJayREC

Repairing Trust

Young men who express more confidence in law enforcement are less likely to support the use of personal violence to settle disputes and resolve personal conflicts.

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New York City neighborhood
October 2, 2017 JohnJayREC

The Effects of Cure Violence in the South Bronx and East New York, Brooklyn

Promising evidence that the public health approach to violence reduction championed by Cure Violence may be capable of creating safe and healthy communities.

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August 4, 2015 JohnJayREC

Respondent-Driven Sampling: Evaluating the Effects of the Cure Violence Model with Neighborhood Surveys

by Kwan-Lamar Blount-Hill and Jeffrey A. Butts August 2015 Acknowledgements This report

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August 24, 2021 JohnJayREC

New York Times — Is New York’s Wave of Gun Violence Receding? Experts See Reason for Hope

“The Brooklyn recovery seems more striking than other boroughs,” Dr. Butts said. “The Brooklyn spike is horrendous when you look at it over time. But the most recent quarter, the data point is back to where it’s been bouncing around for the past 15 years.”

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August 21, 2021 JohnJayREC

Philadelphia Tribune — Gun Violence is a Disease that Needs a Vaccine

New York City’s Cure Violence programs found shootings and gun injuries dropped in two neighborhoods where such programs were in place between 2013 and 2017, according to an evaluation led by Jeffrey Butts, director of the Research and Evaluation Center at John Jay College of Criminal Justice.

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August 10, 2021 JohnJayREC

The Trace — NYC’s Shooting Surge Continues to Level Off — But Violence is Still Higher than Usual.

“Shooting trends in New York City remain a serious concern, but these quarter-specific, one-year differences declined for three straight quarters,” researchers Jeffrey Butts and Richard Espinobarros write.

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August 9, 2021 JohnJayREC

Shooting Surge Continuing to Slow Across New York City

Shooting trends in New York City remain a serious concern, but recent quarter-specific, one-year differences declined for three straight quarters from October 2020 through June 2021.

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August 7, 2021 JohnJayREC

Associated Press — Community ‘Violence Interrupters’ Work to Stem Rising Crime

Sheyla Delgado, deputy director of analytics for the John Jay College of Criminal Justice Research and Evaluation Center, has studied Cure Violence programs in New York City for the past decade and says they do improve public safety.

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August 2, 2021 JohnJayREC

CBS2 New York — Criminal Justice Expert Says Police Intervention Only Part Of Solution To New York City’s Gun Violence

John Jay College of Criminal Justice was commissioned by the city to assess the effectiveness of its anti-violence initiatives. Jeffrey Butts said police intervention is only the first step and societal factors must also be addressed.

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