By Laura Dunbar

Youth gangs are not a new phenomenon in Canada. Theoretical and empirical research and evaluation efforts continue with the goal of better understanding and responding to this issue. Advances have been made in defining the nature of youth gangs and their activities, the motivations for joining, and the risk and protective factors that influence involvement in a gang lifestyle. While a precise measure of youth gang involvement and prevalence of their activities in Canada is not currently available, in the last number of years strides have been made in understanding affiliation among several key populations, namely Aboriginal youth, immigrant youth and young women. Greater insight into specific risk factors, pathways to involvement and desistance, and guidance for prevention and intervention efforts can assist in the future development of solutions to address youth gang involvement and gang-related activities in Canada. Public Safety Canada continues to support effective youth gang prevention and intervention strategies that are known to work based on empirical evidence and lessons learned from past implementation and evaluation experiences.

Ottawa: Public Safety Canada, 2017.30p.

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By Daniel Gunnell, Joseph Hillier and Laura Blakeborough

As part of the Home Office’s Ending Gang and Youth Violence programme a commitment was made to help police forces better understand their local gang issues (HM Government, 20131 ). This research aims to meet this commitment by testing the use of social network analysis using police intelligence data, as a tool to more systematically understand gangs and to help direct law enforcement activities. As such, the report serves as one example of how social network analysis can be used, but the approach could also be applied to other types of crime and disorder to explore the networks of people involved (such as those connected to acquisitive crime or sexual abuse). The research was undertaken in partnership with Great Manchester Police and addresses two research questions: 1. What can social network analysis tell us about gangs? 2. How useful are the social network analysis outputs for the police? For this, five individuals living in Manchester and identified as having gang links were chosen as the starting point for the network analysis. Further details about how to conduct social network analysis can be found in the ‘How to guide’ 2 published as an annex to this report.

London: Home Office, 2016. 34p.

By Emma Disley and Mark Liddle

The aim of this study was to understand perceptions of the nature of urban street gangs and whether these gangs have changed in recent years in the 33 areas1 that make up the Government’s Ending Gang and Youth Violence (EGYV) programme (HM Government, 2011a). The EGYV programme aims to improve the way that gangs are tackled locally through providing peer support to local areas to help prevent young people becoming involved in violence; providing exit routes for those already involved in gangs; and ensuring that appropriate enforcement responses are put in place to address challenges associated with gangs. The study was based on the perceptions of practitioners working on gang-related issues as well as individuals who were current or ex-gang members, or associated with, or affiliated to gangs (referred to throughout as gang associates). It investigated the extent to which there were perceived similarities or differences in the nature of street gangs in EGYV areas and whether or not gangs were thought to have changed in the last two years. It also explored the extent to which there were common or divergent trends in perceptions at national or local levels. It was not the purpose of this study to evaluate the effectiveness of the EGYV programme or local measures to address gang and youth violence. The findings, based largely on practitioners’ perceptions, highlight issues and possible trends that could be more fully explored and investigated locally or nationally, using a wider range of evidence and information.

London: Home Office, 2016. 107p.

By Edward Connors, Barbara Webster, Neal Miller, Claire Johnson, and Elizabeth Fraser

Gangs have been a major contributor to the growth of violent crime in the past decade. Heavily armed with sophisticated weapons, gangs are involved in drug trafficking, murder, witness intimidation, robbery, extortion, and turf battles. Gangs now operate in cities of all sizes, as well as suburban communities throughout the United States; gang violence no longer is limited to major cities. What is being done to stop gang activity? Federal, State, and local law enforcement agencies across the country have implemented innovative and resourceful initiatives to stop gangs from terrorizing our communities. Interagency and multijurisdictional efforts range from special units dedicated to investigating and prosecuting gang-related crimes to state-of-the-art surveillance equipment and sophisticated data collection and analysis technologies. Our purpose in developing Model Strategies for Urban Street Gang Enforcement was to create processes and strategies that would be useful in many jurisdictions. No one method will solve the gang problem; however, some methods are more effective and better suited to certain situations. This monograph presents strategies to enhance prosecution of gang related crimes. It focuses exclusively on enforcement and prosecution strategies against urban street gangs. The model programs introduced here offer strategies largely based on the practical experiences of agencies that participated in a demonstration program funded by the Bureau of Justice Assistance (BJA) and designed to establish model approaches to prevent and suppress gang violence. This monograph offers a step-by-step guide for designing and implementing a program based on Model Strategies for Urban Street Gang Enforcement. It identifies and explores innovative methods of prosecuting gang members involved in criminal activities. Program examples and case studies from the seven demonstration sites illustrate how local objectives were met. By documenting and disseminating effective strategies to combat gang violence, BJA hopes to assist law enforcement agencies.

Washington, DC: U.S. Bureau of Justice Assistance . 1997. 133p.

By Max G. Manwaring

The intent of this monograph is to identify some of the most salient characteristics of contemporary criminal street gangs (that is, the gang phenomenon or third generation gangs), and to explain the linkage to insurgency. As a corollary, Dr. Max G. Manwaring argues that gang-related crime, in conjunction with the instability it wreaks upon governments, is now a serious national security and sovereignty problem in important parts of the global community. Although differences between gangs and insurgents exist, in terms of original motives and modes of operation, this linkage infers that the gang phenomenon is a mutated form of urban insurgency. That is, these nonstate actors must eventually seize political power to guarantee the freedom of action and the commercial environment they want. The common denominator that can link gangs and insurgents is that some gangs’ and insurgents’ ultimate objective is to depose or control the governments of targeted countries. Thus, a new kind of war is brewing in the global security arena. It involves youthful gangs that make up for their lack of raw conventional power in two ways. First, they rely on their “street smarts,” and generally use coercion, corruption, and co-optation to achieve their ends. Second, more mature gangs (i.e., third generation gangs) also rely on loose alliances with organized criminals and drug traffickers to gain additional resources, expand geographical parameters, and attain larger market shares. This monograph contributes significantly to an understanding of the new enemies and the new kinds of threats characteristic of a world in which instability and irregular conflict are no longer on the margins of global politics. For those responsible for making and implementing national security policy in the United States and elsewhere in the world, the analysis of the new threats provided by the author is compelling.

Strategic Studies Institute . 2005. 53p.

By Celinda Franco

Two predominantly Latino gangs, Mara Salvatrucha (MS-13) and the 18th Street gang (M-18), have raised concern among policy makers for several reasons: (1) membership in these gangs has spread from the Los Angeles area to other communities across the United States; (2) these gangs are becoming “transnational,” primarily because MS-13 and M-18 cliques are being established in Central America and Mexico; (3) evidence suggests that these gangs are engaged in criminal enterprises normally associated with better organized and more sophisticated crime syndicates; and (4) MS-13 and M-18 gang members may be involved in smuggling operations and, by extension, could potentially use their skills and criminal networks to smuggle terrorists into the United States. To date, however, no evidence exists establishing a link between MS-13 and M-18 members and terrorists. Nevertheless, some observers maintain that these two gangs may develop the capacity to become organized criminal enterprises capable of coordinating illegal activities across national borders. Yet, others find them to be no more criminally organized or sophisticated than other street gangs. At issue for Congress is whether the MS-13 and M-18 gangs constitute an emerging transnational criminal threat. The federal response to the MS-13 and M-18 gang problem has largely involved the enforcement of criminal and immigration laws, including the deportation of alien gang members. More recently, federal efforts have focused on prosecuting gang members under the Racketeer Influence and Corrupt Organizations (RICO) statute. Deported alien gang members have established MS-13 and M-18 gang cliques in their home countries, and some experts suggest that U.S. deportation policies have effectively transported U.S.-styled gang culture to parts of Central America and Mexico. Moreover, evidence shows that deported alien MS-13 and M-18 gang members have established a “revolving door” migratory pattern of repeat illegal reentry into the United States, raising concerns that these “migratory” alien gang members may become involved in narco-trafficking, smuggling, and other criminal activities along the U.S.-Mexico border. Legislation has been introduced in the 110th Congress (and one such proposal has been passed by the Senate) that would strengthen the enforcement of immigration law directed at alien gang members and provide additional tools to federal prosecutors to pursue members of violent gangs. Such legislation includes H.R. 880, H.R. 1582, H.R. 1645, H.R. 2954, H.R. 3150, H.R. 3156, H.R. 3547, S. 330, S. 456, S. 990, S. 1348, and S. 1860.

Washington, DC: U.S. Congressional Research Service, 2007. 24p.

By Wilhelm Heitmeyer, Simon Howell, Sebastian Kurtenbach, Abdul Rauf, Muhammad Zaman and Steffen Zdun

This book presents a comparative look at the norms and attitudes related to youth violence. It aims to present a perspective outside of the typical Western context, through case studies comparing a developed / Western democracy (Germany), a country with a history of institutionalized violence (South Africa), and an emerging democracy that has experienced heavy terrorism (Pakistan). Building on earlier works, the research presented in this innovative volume provides new insights into the sociocultural context for shaping both young people's tolerance of and involvement in violence, depending on their environment. This volume covers: Research on interpersonal violence. Thorough review of the contribution of research on gangs, violence, neighborhoods and community. Analyses on violence-related norms of male juveniles (ages 16-21 years old) living in high-risk urban neighborhoods. Intense discussion of the concept of street code and its use. Application of street code concept to contexts outside the US. An integrating chapter focused on where the street code exists, and how it is modified or interpreted by young men. With a foreword by Jeffrey Ian Ross, this book aims to provide a broader context for research. It does so via a rigorous comparative methodology, presenting a framework that may be applied to future studies.

Cham, SWIT: Springer Nature, 2019. 196p.

Edited by Winifred L. Reed and Scott H. Decker

The projects reflect a diverse set of methodologies and interests. They present a representative selection of the National Institute of Justice’s (NIJ) collection of gang-related research. Chapter 1 discusses a decade of gang research and the findings of the NIJ gang portfolio. Each research project is summarized. Chapter 2 presents the evolution of street gangs and examines form and variation. Chapter 3 describes the risk factors, delinquency, and victimization risk for young women in street gangs. Chapter 4 focuses on youth gang homicides in the 1990's. Three issues of importance to the understanding of gang homicide -- measurement, trends, and correlates are examined. The National Evaluation of the Gang Resistance Education and Training (G.R.E.A.T.) Program is outlined in chapter 5. This program is classroom-based and consists of eight lessons designed to teach middle school students life skills that enable them to resist the pressures of gangs, drugs, and delinquency. Chapter 6 evaluates Nevada’s antigang legislation and gang prosecution units. Chapter 7, presents an evaluation of a task force approach to gangs. The task force, known as JUDGE (Jurisdictions Unified for Drug Gang Enforcement), did not clear up the question of whether specific gang enforcement yielded better results than did traditional forms of law enforcement. Chapter 8 describes an evaluation of gang prevention programs for female adolescents. It was found that gang membership showed as much variation for young women as it did for men. Chapter 9 focuses on reducing gang violence in Boston. Chapter 10 describes the development of a GIS-based regional gang incident tracking system. Recommendations for future directions in gang research include incorporating some of the insights of research literature outside the gang field; funding collaborative efforts; and considering the use of a dynamic problem-solving approach.

Washington, DC: U.S. National Institute of Justice, 2002. 320p.

By Irving Spergel

The review describes what is known about youth gangs in the United States; explains gang phenomena, primarily within social disorganization and poverty perspectives; and describes and assesses organized responses to the problem. The first part of the report contains six chapters on the "Nature of the Problem." The first chapter considers definitional issues and data sources, followed by five chapters that address the scope and seriousness of the gang problem, the group character of youth gangs, membership demographics, membership experience, and the social contexts of youth gang development. The second part of the report, "Response to the Problem," focuses on organized responses to the gang problem, with attention to existing and evolving strategies, policies, and programs of youth service, criminal justice, and community-based organizations, as well as Federal and State legislative initiatives. One chapter in this section discusses the historical roots and development of key antigang strategies, followed by a chapter that discusses social intervention strategies, with attention to evaluation. Other chapters consider police gang-suppression strategies and the approaches of prosecutors, defense attorneys, and judges in addressing the gang problem. Remaining chapters address current emerging probation, parole, and corrections strategies; the importance of social opportunities, especially improved education and employment opportunities for gang youth; and community mobilization to counter gangs. The final chapter summarizes key findings of the review and provides policy recommendations.

Chicago: National Youth Gang Suppression and Intervention Program School of Social Service Administration University of Chicago, 1991. 212p.

By Walter B. Miller

The prevalence and seriousness of gang problems have fluctuated over time, with gang activity escalating during some periods and diminishing during others. The last three decades of the 20th century were characterized by a major escalation of youth gang problems throughout the Nation. This report presents detailed information on the numbers and specific identities of gang problem localities, the size of these localities, rates of growth, and location by State and region of the cities, towns, villages, and counties that reported gang problems between the 1970’s and late 1990’s. By the late 1990’s, 3,700 identified localities in the United States, totaling the highest number ever reported presence of gang problems. In the 1970’s, 19 States reported gang problems; by the late 1990’s, all 50 States and the District of Columbia had reported gang problems. The States with the largest number of gang-problem cities in 1998 were California, Illinois, Texas, Florida, and Ohio. Nationwide, there was a substantial decrease in the concentration of gang cities in the higher ranking States as gang problems continued to spread to new States. The regional location of gang cities changed radically during the three-decade period. In the 1970’s, the West ranked the highest in the reported number of gang cities, and the South ranked the lowest. In 1998, the South ranked second. In the late 1990’s, there were approximately 200 cities with populations of 100,000 or more, and every one of these large cities reported youth gang problems. Gang problems however, were not confined to large cities. One of the best documented developments of this period was a striking increase in the growth of gang problems in the Nation’s smaller cities, towns, and villages. Reasons for the striking increase in the number of gang problem localities are discussed under seven headings: drugs, immigration, gang names and alliances, migration, government policies, female-headed households, and gang subculture and the media. An analysis of projected growth rates of gang problem cities provides a basis for predicting future trends in the number of gang cities. The data provides support for a prediction that the rate of growth that prevailed in the later 1990’s will decrease in the early 2000’s and a prediction that the actual number of gang localities will decrease.

Washington, DC: U.S. Office of Juvenile Justice and Delinquency Prevention, 2001. 93p.

By Walter B. Miller

Many crime analysts in recent years have tended to overlook the problem of youth gang violence in our major cities. They shared the popular view that gangs were a problem of the 1950's but no longer. Now, in the first nationwide study ever undertaken of the nature and extent of gang violence, Walter B. Miller reports that gangs in many cases have continued to be a problem for the last 20 years and in other cases have changed in their patterns-such as Increased use of guns, less formalized organizational structure, and greater activity in the schools-previously considered "neutral turf." How could there have been such a misreading of the national situation? According to Miller, the problem lies in the lack of any systematic method for gathering the right information. Miller's study concentrated primarily on the eight largest U.S. cities. He fmds gang violence levels high in: New York, Chicago, Los Angeles, Detroit, Philadelphia and San Francisco. From available data, he estimates the youth gang population in these cities as ranging from 760 gangs and 28,500 members to 2,700 gangs and 81,500 members. Statistics kept by these cities show 525 gang-related murders in the three-year period from 1972 through 1974, or an equivalent of 25 percent of all juvenile homicides in the cities. Miller believes these figUres may "represent substantial undercounts" because of the different definitions in use in the cities for classifying gang-related homicides.

Washington, DC: U.S. National Institute for Juvenile Justice and Delinquency Prevention, 1975, 84p.

By Marc Sommers

Most youth are peaceful. Even if the field known as “countering violent extremism” (CVE) did not exist, most young people still would not join a violent extremist organization (VEO). At the same time, the overwhelming majority of people who become violent extremists are youth — most of whom are male. The challenge at the center of CVE is thus an unusual one: identifying the fraction of youth populations most likely to enter a VEO and thwarting that option. This paper investigates that challenge, with analysis featuring interviews with 21 experts and over 400 publications on violent extremism, CVE, and youth. Two correlations inform this work: the direct relationship between nations with “youth bulge” populations and state repression, and the connection between state repression and increased violent extremism, with repressive states usually targeting male youth.

Washington, DC: Promundo-US. 2019. 50p.

By Ryan J. Roberts

Despite the significant contributions from location-based gang studies, the network structure of gangs beyond localized settings remains a neglected but important area of research to better understand the national security implications of gang interconnectivity. The purpose of this dissertation is to examine the network structure of gangs at the macro- and micro-level using social network analysis. At the macro-level, some gangs have formed national alliances in perpetuity with their goals and objectives. In order to study gangs at the macro-level, this research uses open-source data to construct an adjacency matrix of gang alliances and rivalries to map the relationships between gangs and analyze their network centrality across multiple metrics. The results suggest that native gangs are highly influential when compared to immigrant gangs. Some immigrant gangs, however, derive influence by “bridging” the gap between rival gangs. Mexican Drug Trafficking Organizations (MDTOs) play a similar role and feature prominently in the gang network. Moreover, removing MDTOs changes the network structure in favor of ideologically-motivated gangs over profit-oriented gangs. Critics deride macro-level approaches to studying gangs for their lack of national cohesion. In response, this research includes a micro-level analysis of gang member connections by mining Twitter data to analyze the geospatial distribution of gang members and, by proxy, gangs, using an exponential random graph model (ERGM) to test location homophily and better understand the extent to which gang members are localized. The findings show a positive correlation between location and shared gang member connections which is conceptually consistent with the proximity principle. According to the proximity principle, interpersonal relationships are more likely to occur in localized geographic spaces. However, gang member connections appear to be more diffuse than is captured in current location-based gang studies. This dissertation demonstrates that macro- and micro-level gang networks exist in unbounded geographic spaces where the interconnectivity of gangs transpose local issues onto the national security consciousness which challenges law and order, weakens institutions, and negatively impacts the structural integrity of the state.

Norfolk, VA: Old Dominion University, 2021. 344p.

By Josine Junger-Tas, Ineke Haen Marshall, Dirk Enzmann, Martin Killias, Majone Steketee, and Beata Gruszczyāska

This book presents the first comprehensive analysis of the second International Self-Report Delinquency study (ISRD-2). An earlier volume, Juvenile Delinquency in Europe and Beyond (Springer, 2010) focused mainly on the findings with regard to delinquency, victimization and substance use in each of the individual participating ISRD-2 countries. The Many Faces of Youth Crime is based on analysis of the merged data set and has a number of unique features:  The analyses are based on an unusually large number of respondents (about 67,000 7th, 8th and 9th graders) collected by researchers from 31 countries;  It includes reports on the characteristics, experiences and behaviour of first and second generation migrant youth from a variety of cultures;  It is one of the first large-scale international studies asking 12-16 year olds about their victimization experiences (bullying, assault, robbery, theft);  It describes both intriguing differences between young people from different countries and country clusters in the nature and extent of delinquency, victimization and substance use, as well as remarkable cross-national uniformities in delinquency, victimization, and substance use patterns;  A careful comparative analysis of the social responses to offending and victimization adds to our limited knowledge on this important issue;  Detailed chapters on the family, school, neighbourhood, lifestyle and peers provide a rich comparative description of these institutions and their impact on delinquency;  It tests a number of theoretical perspectives (social control, self-control, social disorganization, routine activities/opportunity theory) on a large international sample from a variety of national contexts;  It combines a theoretical focus with a thoughtful consideration of the policy implications of the findings;  An extensive discussion of the ISRD methodology of ‘flexible standardization’ details the challenges of comparative research.

New York; Dordrecht; Heidelberg; London: Springer Science+Business Media, 2012. 384p.

By Susan J. Terrio

In October 2005, three weeks of rioting erupted in France following the accidental deaths of two French boys of North African ancestry. Killed while fleeing the police, these boys were deemed dangerous based largely on their immigrant origins. In France, disadvantaged children of immigrant and foreign ancestry represent the vast majority of formal suspects and have increasingly been portrayed as a threat to public safety and as the embodiment of the assault on French values.Despite official rhetoric of protection, Judging Mohammed reveals how the treatment of these children in the juvenile courts system undermines legal guarantees of equality and due process and reinforces existing hierarchies. Based on five years of extensive research in the largest and most influential juvenile court in France, this work follows young people inside the system, from arrest to court trials. Revealing an alarming turn toward accountability, restitution, and retribution, this groundbreaking study uncovers the disquieting reasons behind France's shifting approaches to the identification, treatment, and representation of its delinquent youth.

Stanford, CA: Stanford University Press. 2009. 369p.

Edited by Rolf Loeber and David P. Farrington

What makes a juvenile delinquent develop into an adult criminal? What defines-cognitively, developmentally, legally-the transition from juvenile to adult and what determines whether patterns of criminal behavior persist? In most US states and Western nations, legal adulthood begins at age 18. This volume focuses on the period surrounding that abrupt transition (roughly ages 15-29) and addresses what happens to offending careers during it. Edited by two leading authorities in the fields of psychology and criminology, Transitions from Juvenile Delinquency to Adult Crime examines why the period of transition is important and how it can be better understood and addressed both inside and outside of the justice system. Bringing together over thirty leading scholars from multiple disciplines in both North America and Europe, this volume asks critical questions about criminal careers and causation, and whether current legal definitions of adulthood accurately reflect actual maturation and development. The volume also addresses the current efficacy of the justice system in addressing juvenile crime and recidivism, why and how juveniles ought to be treated differently from adults, if special legal provisions should be established for young adults, and the effectiveness of crime prevention programs implemented during early childhood and adolescence. With serious scholarly analysis and practical policy proposals, Transitions from Juvenile Delinquency to Adult Crime addresses what can be done to ensure that today's juvenile delinquents do not become tomorrow's adult criminals.

Oxford, UK: New York: Oxford University Press, 2012. 416p.

By William H Quinn

Dr. Quinn provides a review on related research and programs and effectiveness. A presentation of the model program provides most of the materials an individual or agency would need to begin to implement the program. A practitioner might take activities from the model program and integrate them into an existing program.

New York: Hove, UK: Brunner-Routledge, 2004. 316p.

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By Carla P. Davis

This book offers an ethnographic study of the lives of girls in the juvenile justice system. Based on rich, narrative accounts, the girls at the center of the study are viewed as confronted with the power of simultaneous race, class, and gender hierarchies. Through this framework, we see how the girls navigate this challenge by seeking status in their everyday lives: in their families; juvenile justice institutions; and neighborhood organizations, including gangs. Through analyzing the ways that the girls strive for higher social status, this book provokes debate about how policies and programs may be creatively rethought to incorporate this pursuit. Girls and Juvenile Justice offers a glimpse into the hearts, minds, and souls of adolescent girls. It will be of great interest for scholars of criminal justice, sociology, women’s studies, and social-psychology.

Cham, SWIT: Palgrave Macmillan, 2017. 195p.

By James Gilbert

The youth culture is on everyone's lips today, as pressures build to ban controversial song lyrics, reintroduce school prayer, and prohibit teenagers' access to contraceptives. It's not the first time Americans have been outraged over the seuction of the innocent.. When James Dean and Marlon Brando donned their motorcycle jackets and adopted alienated poses in Rebel Without a Cause, East of Eden, and The Wild One, in the 1950's, so did countless numbers of American teenagers. Or so it seemed to their parents. American teenagers were looking and acting like juvenile delinquents. By mid-decade, the nation had reached a pitch of near obsession with the harmful effects of film, radio, comic books, and television on American youth.

New York; Oxford; Oxford University Press, 1986 . 273p.

By Gary L. McDowell and Jinney S. Smith

This volume about juvenile delinquency in the United States and United Kingdom includes a foreword, nine chapters organized in three parts, and an afterword. Chapters 1 and 2 in Part I describe juvenile delinquency in both countries and the urgency of the current crisis. Chapters 3 to 6 in Part II deal with the two nations' juvenile justice systems, focusing on structural and ideological obstacles preventing reform. Presented in the final chapters in Part III are suggestions for reform in school, and juvenile justice settings that recognize the importance of character in causing delinquency.

Houndmills, Basingstoke, UK: London: Macmillan; New York: St. Martin's Press, 1999. 209p.