U.S. flag

An official website of the United States government, Department of Justice.

Dot gov

The .gov means it’s official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Gangs

Select Filters

Gang Membership Prevention

June, 2010

The Centers for Disease Control and Prevention and NIJ collaborated on a book that focuses on promising principles for gang membership prevention. This NIJ Conference Panel discusses the risk and protective factors that influence gang membership as well as efforts to reduce such factors. Panelists also explored the direction of gang research for the future.

What Is Research and Evaluation Evidence and How Can We Use It?

June, 2010

This NIJ Conference Panel will explore the development and use of evidence-based policies, programs and technologies to improve effectiveness and efficiencies related to government. Through casual observation, practices and programs may appear to be effective, but under closer scrutiny the results may look much different.

Research Validity and Integrity

NIJ provides objective and independent knowledge and tools to reduce crime and promote justice. NIJ follows widely accepted scientific processes and procedures to help ensure the validity and integrity of our research. On this page learn about:

Research and Evaluation on Gangs and Gang Violence, FY 2019

Closing Date
NIJ is seeking applications for the funding of research and program evaluation projects that inform efforts to prevent and reduce street gang activity, violence, and victimization in the United States. Gangs and gang members are responsible for a large amount of crime and violence in many localities, and are responsible for a disproportionate share in those communities most afflicted by crime and violence.