The G.R.E.A.T. Program is a school-based, law enforcement officer-instructed classroom curriculum. The program's objective is prevention and 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 National Youth Gang Center (NYGC) assists policymakers, practitioners, and researchers in their efforts to reduce youth gang involvement and crime by contributing information, resources, practical tools, and expertise toward the development and implementation of effective gang prevention, intervention, and suppression strategies. NYGC also conducts assessments of the scope and characteristics of youth gang activity, develops resources, and provides training and technical assistance in support of community-based prevention, intervention, and suppression efforts.