U.S. flag

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

Youth gangs

Youth Violence

Access federal and federally funded resources related to the prevalence and prevention of and responses to violence among youth.


Access federal and federally-funded publications and online resources related to the prevention of and response to gang involvement and activity.

Archived Solicitations

This is an archive of Office of Justice Programs closed solicitations and is provided for reference purposes only. It was current when produced, but is no longer maintained and some links may no longer function.


There is no single definition of a gang, but there are a number of widely accepted criteria for classifying groups as gangs (Decker and Curry, 2003; Esbensen et al., 2001; Klein, 1995; Miller, 1992; Spergel, 1995).