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Statistics and Research on Gangs


2005 National Gang Threat Assessment

    Bureau of Justice Assistance (BJA), 2005.  This 2005 National Gang Assessment provides statistics regarding the prevalence of gang activity across the United States. Includes regional trends as well as sections for community response to gangs, and gangs' involvement with terrorist organizations.

Causes and Correlates of Delinquency Program

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), April 1999.  The purpose of this project was to determine how youth delinquency problems develop within the context of their community, family, and peers.

Early Precursors of Gang Membership: A Study of Seattle Youth

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), December 2001. The Seattle Social Development Project is a longitudinal study of youth living in high-crime neighborhoods and the predictors that lead to participation in gangs.

Epidemiology of Serious Violence

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), June 1997.  This OJJDP Bulletin answers basic questions about the varying levels of juvenile's involvement in violent acts according to age, sex, and ethnicity and recommends a public health model of prevention, treatment, and control.

Evaluating G.R.E.A.T.: A School-Based Gang Prevention Program

    National Institute of Justice (NIJ), June 2004. The results of a 5-year study of the Gang Resistance Education and Training (G.R.E.A.T.) program reveal that the program has had modest positive effects on adolescent attitudes and delinquency risk factors but no effects on their involvement in gangs and actual delinquent behaviors.

Gang Activity in Orange County, California: Final Report to the National Institute of Justice

    National Institute of Justice (NIJ), February 2000. Report on a study conducted by the University of California, Irvine, at the request of the Orange County Chiefs' and Sheriff's Association (OCCSA) to evaluate and monitor the effectiveness of OCCSA's community-based, multi-agency efforts to address gang violence and to help develop strategies to prevent and control illegal gang activity. Also evaluated was the OCCSA's Gang Incident Tracking System.

Gang Structures, Crime Patterns, and Police Responses

    National Institute of Justice (NIJ), June 2001.  Provides data on how street gang crime patterns related to common patterns of street gang structure provide focused, data-based guidelines for gang intervention and control.

Gang Structures, Crime Patterns, and Police Responses: A Summary Report

    National Institute of Justice (NIJ), June 2001. Provides data on how street gang crime patterns related to common patterns of street gang structure provide focused, data-based guidelines for gang intervention and control.

Gang Suppression and Intervention: Community Models

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), October 1994.  This summary presents the results of the study team's assessment of youth gang problems and responses across the U.S. It demonstrates the need for effective gang suppression and intervention programs.

Gun Use by Male Juveniles: Research and Prevention

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), July 2001. This bulletin draws on data from OJJDP's Rochester Youth Development Study to examine patterns of gun ownership and gun carrying among adolescents. Also addresses the interrelationship between gangs and guns and describes efforts to reduce the illegal carrying of guns by youth.

Highlights of the 2002 National Youth Gang Survey

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), April 2004. This is the eighth annual survey conducted by the National Youth Gang Center. The report provides preliminary evidence that the overall number of jurisdictions experiencing gang problems in a given year may be stabilizing.

Highlights of the 2001 National Youth Gang Survey

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), April 2003. This seventh annual survey conducted by the National Youth Gang Center showed that an estimated 3,000 jurisdictions across the United States experienced gang activity in 2001.

Highlights of the 1999 National Youth Gang Survey

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), November 2000. This fifth annual gang survey conducted by the National Youth Gang Center indicates that 3,911 jurisdictions in the Untied States experienced gang activity in 1999, a 19 percent decline from the high of 4,824 in 1996.

National Evaluation of the Gang Resistance Education and Training (G.R.E.A.T.) Program, Final Report

    National Institute of Justice (NIJ), September 2002. A report on the multiyear, multifaceted evaluation of one school-based gang-prevention program, the Gang Resistance Education and Training (G.R.E.A.T.) program, in which uniformed law enforcement officers teach a 9-week curriculum to middle school students.

National Institute of Justice 2002 Annual Report

    National Institute of Justice (NIJ), 2002. Highlights NIJ's research and development activities during fiscal year 2002 in such areas as terrorism, violence against women and family violence, science and technology, and community safety. Details NIJ's increased commitment to program evaluation and describes how new-look print and electronic products and electronic-based dissemination will make policy relevant research more readily available to policymakers and practitioners. Also contains financial and web data and lists of awards, conferences, and products.

New Program Supports Community Anti-Gang Efforts

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), September/October 2003. The Gang Reduction Program (GRP), a priority of the OJJDP, is underway in four pilot sites and has a clear goal: reducing youth gang crime and violence in targeted neighborhoods by helping communities take an integrated approach to applying proven practices in primary and secondary prevention, intervention, suppression, and reentry.

Preventing Adolescent Gang Involvement

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), September 2000. This publication offers a solid foundation on which to build a comprehensive strategy to prevent youth gang involvement, examining the youth gang problem within the larger context of juvenile violence. Describes key characteristics of youth gangs, and the risk factors for gang membership, including individual and family demographics, personal attributes, and peer group, school, and community factors.

Preventing Violence the Problem-Solving Way

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), April 1999. This bulletin describes the specific interpersonal cognitive problem-solving skills that relate to high-risk behaviors and their use by "Raising a Thinking Child," a primary prevention program for children ages 4 to 7 and their parents. By teaching their children to think first and to think constructively, parents can contribute to preventing violence the problem-solving way.

Responding to Gangs: Evaluation and Research

    National Institute of Justice (NIJ), July 2002. A collection of papers representative of the National Institute of Justice's portfolio of gang-related research. Ten chapters present different aspects of gang problems and research.

The Growth of Youth Gang Problems in the United States: 1970-98

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), April 2001. Provides information on statistical trends in the development of youth gang problems during the last 3 decades of the 20th century.

Youth Gang Bibliography

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), February 2001. A 110-page bibliography of gang literature from the National Youth Gang Center.

Youth Gangs: An Overview

    OJJDP Juvenile Justice Bulletin, August 1998. Office of Juvenile Justice and Delinquency Prevention (OJJDP). Looks at the history of youth gangs and their demographic characteristics and assesses the scope of the youth gang problem, including gang problems in juvenile detention and correctional facilities. States that successful gang intervention and suppression must build on services already in place in our communities to develop a comprehensive approach that will enhance the capacity of the juvenile justice system.

Youth Gangs in Schools

    Office of Juvenile Justice and Delinquency Prevention (OJJDP), August 2000. This bulletin analyzes findings from the School Crime Supplements to the National Crime Victim Survey. Describes characteristics of gangs in schools and discusses contributory factors to gang prevalence in schools. Also reviews the impact on victimization of gang presence in schools.

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