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Strengthen science. Advance justice.

Learn more about NIJ's mission
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Conducting RCTs in State Prisons

Approximately 1.3 million inmates are housed in state prisons nationwide, which is more than half of the total population of all incarcerated individuals. Rigorous program evaluation, especially randomized controlled trials (RCTs), can help state prison systems implement effective policies and programs that address issues and improve reentry outcomes. 

Learn more in our new paper.
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Digital Evidence Policies & Procedures Manual

As society embraces technology and the use of mobile devices increases, a growing number of devices are being used in crimes and then seized by law enforcement as evidence. NIJ’s new manual serves as a starting point for the development of policies and procedures for the collection, handling, and processing of digital evidence by law enforcement agencies. 

Review the manual.

Recent Articles

Find funding opportunities

Find funding opportunities

NIJ awards research, development, testing, evaluation, and capacity enhancement 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.
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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.

Learn about NIJ’s role under the First Step Act.
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Cyberbullying Programs Rated Effective

These intervention and prevention programs are designed to reduce or prevent negative online behaviors among school-aged children ages 9 to 19. Programs include individual-level, multi-level systemic, and universal or whole-school approaches. This practice is rated Effective for reducing cyberbullying perpetration and victimization. 

Learn more about this practice.