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Five Facts About Mass School Shootings

Preventing mass shootings in schools is a priority for families, government leaders and officials, public safety agencies, mental health professionals, educators, and local communities. What does evidence say about how to detect, prevent, and respond to these tragic events? A new fact sheet reviews what we’ve learned through NIJ-sponsored research.

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New Insights on Radicalization, Deradicalization Processes

As concerns over domestic extremism have intensified, research is building a deeper understanding of the causes and effects of radicalization, in addition to factors that might influence deradicalization. A new article describes several common factors, interventions, and policy recommendations to ultimately stem extremist violence.

Papers from Recidivism Challenge Winners

Each winner from NIJ’s Recidivism Forecasting Challenge submitted a research paper that describes which variables did and did not matter to the final recidivism forecasting model, and when applicable, what type of models outperformed other models. 25 papers are now available for review.

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What is a student threat assessment?

A student threat assessment is a systematic approach to evaluating the likelihood that a student will carry out a violent act after an explicit threat or threatening behaviors. Threat assessments can give schools a proactive alternative to reactive disciplinary practices such as zero tolerance discipline.  

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. 

Listen, Learn, Inform - About NIJ

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.
Register for events

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

Phoenix (Arizona) Police Department Crime Gun Intelligence Center

This is a collaborative law enforcement effort to collect, manage, and analyze gun crime evidence to identify serial shooters, disrupt criminal activity, and prevent future gun violence.

Procedural Justice Checklist for Suspected Terrorists in a European Country

This is a procedural justice checklist for counterterrorism police officers working in ports of travel in a European country to use when questioning people suspected of terrorism.

Project Safe Neighborhoods (Tampa, FL)

This initiative involves proactive policing, enhanced enforcement, sentences for individuals who repeatedly offend, and collaboration among multiple stakeholders. The program’s goal is to reduce violent crime and gun violence. 

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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 risk and needs assessment system for incarcerated individuals, and develop recommendations regarding effective evidence-based recidivism reduction programs and activities.