The NGC provides information on programs and practices related to gang prevention, intervention, and suppression so that practitioners can make evidence‐based decisions.

Strategic Planning Tool

The Strategic Planning Tool (SPT) is an electronic tool to assist communities in assessing their gang problems and planning strategies to deal with those problems. The tool has four interrelated components that include risk factors, planning for implementation, a program matrix, and the community resource inventory. The first three components provide users with a broad array of knowledge about gang behavior, strategies, best practices, and research‐based programs. The fourth component, the community resource inventory, is a database that allows users to capture and categorize local resource information for local action.

Comprehensive Gang Model

The OJJDP Comprehensive Gang Model provides a framework for coordinated action that improves a community’s capacity to prevent youth from joining gangs and reduce street gang crime and violence, whether emerging or entrenched.

View the Comprehensive
Gang Model →


Program Matrix Graphic

There are numerous gang prevention, intervention, and suppression programs, strategies, and activities, as well as juvenile delinquency prevention and intervention programs. The NGC has developed a program matrix whereby users may review existing programs to find ones that best meet their needs and fill gaps in coverage. Programs in the database were reviewed using several criteria and designated as “effective” or “promising.” The user is offered numerous options, cross‐referenced by age of the intended target population and linked to risk factors in five domains.

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The Gang Resistance Education And Training (G.R.E.A.T.) Program is a school‐based, law enforcement officer‐instructed classroom curriculum. The program, whose primary objective is prevention, is intended as an immunization against delinquency, youth violence, and gang membership. G.R.E.A.T. lessons focus on providing life skills to students to help them avoid delinquent behavior and violence to solve problems. The G.R.E.A.T. Program is administered by the Office of Juvenile Justice and Delinquency Prevention, a component of the Office of Justice Programs, U.S. Department of Justice. Since its inception in 1991, more than 12,000 law enforcement officers have been certified as G.R.E.A.T. instructors, and more than 6 million students have graduated from the G.R.E.A.T. Program. G.R.E.A.T. online