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The Data-Driven Fight Against Gun Violence

A data point will not stop a bullet, but evidence-based research grounded in reliable science is a proven pathway for addressing the gun violence crisis in the U.S. Studies supported by NIJ have made clear that multifaceted, data-driven, strategic approaches to firearms violence research have the potential to stem gun traffic, cut down on shootings, and save lives. 

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The Impact of Incarceration on Desistance

The third in our white paper series on desistance from crime considers how imprisonment shapes the desistance process for individuals who chronically engage in criminal activity and discusses the implications for policy, practice, and research.  

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Alternatives to Incarceration for Veterans

Veterans treatment courts are specialized problem-solving courts that support veterans in the criminal justice system who were diagnosed with substance use disorders and mental health issues, and experience other rehabilitation needs like stable housing. NIJ’s evaluation of these courts is an example of applied research examining alternatives to incarceration. 

What is machine learning?

Machine learning is the study of computer algorithms that improve automatically through experience. Criminal justice applications of machine learning include detecting patterns and anomalous behavior, predicting crowd behavior and crime patterns, protecting critical infrastructure, and uncovering criminal networks.

NIJ’s Term of the Month promotes research-based definitions of criminal justice terms.

Criminal Justice Data Archives

The National Archive of Criminal Justice Data archives data on crime and justice and contains data from over 2,700 curated studies or statistical data series. The website is home to several large-scale datasets, including the National Crime Victimization Survey, FBI's Uniform Crime Reports and National Incident-Based Reporting System, and the Project on Human Development in Chicago Neighborhoods. 

NIJ Virtual Conference on School Safety

Find funding opportunities

Find funding opportunities

NIJ awards research, development, testing, and evaluation grants.
Read the latest

Read the latest

Review a list of publications and articles from both NIJ and the researchers we fund.
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Register for events

Check out a list of our upcoming events. If you don't see anything of interest, we also offer a number of recorded, on-demand event and training opportunities.
Browse all topics

Browse all topics

Find articles and other information on a wide variety of criminal justice topics.

CrimeSolutions Program and Practice Ratings

Interactive Programs for Preventing Marijuana Use in Middle School Students

This practice consists of skill-building and interaction-based activities integrated into school-based programs for grades 6–8 that are aimed at preventing marijuana use among adolescents ages 12–14. 

Psychological Treatments for Adults With Histories of Violent Offending

This practice consists of talk-based therapies aimed at reducing violent, aggressive, or antisocial behavior of adults with a history of violent offending. Therapies include cognitive-behavioral therapy, anger management programs, and violence reduction programs. 

Counter-Narratives for the Prevention of Violent Radicalization

This practice involves the use of counter-narratives, which attempt to challenge and deconstruct narratives suggesting extremist ideologies, to prevent the violent radicalization of participants. Types of counter-narratives include counter-stereotypical exemplar, persuasion, and inoculation. 

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The First Step Act

The First Step Act of 2018 aims to reform the federal prison system and reduce recidivism. NIJ is working to assess and develop an existing prisoner risk and needs assessment system, and develop recommendations regarding effective evidence-based recidivism reduction programs and activities.