The Strategic Prevention of Gun Violence Among Gang‐Involved Offenders

Problem‐oriented policing has been suggested as a promising way to understand and prevent complex gang violence problems. A number of jurisdictions have been experimenting with new problem‐oriented frameworks to understand and respond to gun violence among gang‐involved offenders. These interventions are based on the “pulling levers” deterrence strategy that focuses criminal justice and social service attention on a small number of chronically offending gang members responsible for the bulk of urban gun violence problems. As part of the US Department of Justice‐sponsored Project Safe Neighborhoods initiative, an interagency task force implemented a pulling levers strategy to prevent gang‐related gun violence in Lowell, Massachusetts. Our impact evaluation suggests that the pulling levers strategy was associated with a statistically significant decrease in the monthly number of gun homicide and gun‐aggravated assault incidents. A comparative analysis of gun homicide and gun‐aggravated assault trends in Lowell relative to other major Massachusetts cities also supports a unique program effect associated with the pulling levers intervention.     

Gang change and evolutionary theory

While most street gangs are temporary and disorganized, some have institutionalized, and a number of these show signs of evolving into more serious criminal enterprises, becoming more networked, technologically savvy and internationalized, less visible, more predatory and sometimes more violent. The boundaries that researchers have drawn between gangs and other types of criminal groups, particularly organized crime, are becoming blurred. Understanding why this is happening is crucial to planning effective responses. This article suggests that evolutionary theory, involving processes of variation, selection and replication, would constitute a valuable tool for this purpose. Using an evolutionary framework would enable the application of a longitudinal perspective to the microsocial level of analysis, the gang itself, which until now has not had as much attention as other levels of analysis in gang research. Taking inspiration from evolutionary theories in organizational sociology and economics, this article explores how evolutionary theory might be used to understand gang change and locate gangs within evolutionary sequences. It argues that adopting an evolutionary perspective will improve the capacity of law enforcement agencies to focus scarce resources where they are most needed and to plan and implement successful interventions.     

The Effect of Gang Perpetrated Crime on the Likelihood of Non-Lethal Victim Injury

Studies consistently find that gang members are involved in a disproportionately high rate of violence. The association between gangs and violence is largely based on the legal definition of violence, however. The current study moves beyond the legal definition of gang violence by examining the relationship between non-lethal gang involved incidents and the likelihood of victim injury, using pooled data (1992–2005) from the National Crime Victimization Survey. Overall, results reveal that gang members are not more likely than are non-gang members to injure their victims. When analyses are restricted to incidents involving injury, or incidents involving weapons, gang members are no more likely to more severely injure their victims than non-gang members. Strengths and limitations of the study are discussed.     

VOICES FROM THE BARRIO: CHICANO/A GANGS,FAMILIES, AND COMMUNITIES*

Based on in‐depth interviews with 33 youth gang members and 20 adult neighborhood leaders and youth service providers, we explore the complicated relationships among gang members, their families, and other residents of poor Chicano/a and Mexicano/a barrios in Phoenix. Listening to the multiple voices of community members allows for a multifaceted understanding of the complexities and contradictions of gang life, both for the youths and for the larger community. We draw on a community ecology approach to help explain the tensions that develop, especially when community members vary in their desires and abilities to control gang‐related activities. In this exploratory study, we point to some of the ways in which gender, age, education, traditionalism, and level of acculturation may help explain variation in the type and strength of private, parochial, and public social control within a community.     

Racial and Ethnic Heterogeneity,Economic Disadvantage,and Gangs: A Macro‐Level Study of Gang Membership in Urban America

There is a lack of macro‐level gang research. The present study addresses this shortcoming by providing a theoretically informed analysis of gang membership in large US cities. More specifically, our goal is to determine whether racial and ethnic heterogeneity conditions the relationship between economic disadvantage and gang membership. Three separate sources of data are used in this study: U.S. Census 2000, Law Enforcement Management and Administrative Services 2000, and National Youth Gang Survey 2002–2006. A series of weighted least‐squares regression models are estimated, finding that both economic disadvantage and racial and ethnic heterogeneity exhibit independent and additive effects on gang membership. In addition, the results show that racial and ethnic heterogeneity has a conditioning relationship with economic disadvantage. Furthermore, our expanded operationalization of the Blau heterogeneity measure indicates that prior research may have underestimated the effects of heterogeneity. The authors discuss these findings in the context of existing gang research and offer directions for future research.     

Revisiting the Use of Propensity Score Matching to Understand the Relationship between Gang Membership and Violent Victimization: A Cautionary Note

Previous research has consistently reported that gang members are more likely to experience violent victimization compared to non‐gang members. Recently, however, a study challenged this conventional wisdom using the Gang Resistance Education and Training (GREAT) data. Employing propensity score matching (PSM), this study reported no significant differences in violent victimization between gang and non‐gang members. Upon closer examination of the GREAT data and the PSM process used in this study, we note several theoretical, methodological, and statistical concerns. We reanalyze the GREAT data using both negative binomial regression and PSM. We find that self‐reported gang members were significantly more likely to report subsequent violent victimization compared to non‐gang members. Although contrary to this previous study, our findings are consistent with the bulk of previous empirical research and widely held beliefs about the relationship between gang membership and violent victimization.     

Explaining gang homicides in Newark, New Jersey: Collective behavior or social disorganization?

Although numerous studies examined the distinction between gang and non-gang homicides, there is nonetheless a continued need for research in this domain. Specifically, few studies investigated the etiological differences between these homicides at the multivariate level or attempted to examine the relative robustness of the primary explanations of gang homicides—social disorganization and Decker's (1996) collective behavior hypothesis of gang violence. This article therefore addresses this void by focusing on gang-related homicides in Newark, New Jersey over a sixty-six month period. The findings of this study suggested that there were significant differences between gang and non-gang homicides at the incident level. At the multivariate level, the authors found that homicides precipitated by the operationalization of Decker's (1996) escalation hypothesis were more likely to be gang-related. Conversely, the social disorganization measure did not predict gang homicide, while poverty was a significant predictor. When measures of both potential explanations were entered into the same model only the micro-level escalation hypothesis retained its significance.     

Using the Arrestee Drug Abuse Monitoring (ADAM) program to further understand the relationship between drug use and gang membership

In this paper, we examine the relationship between drug use and gang membership using data from the Arizona Arrestee Drug Abuse Monitoring (ADAM) program, which collects both self‐report and hard measures (i.e., urinalysis) of drug use. Our analyses revealed that self‐reported recent drug use (i.e., drug use in the past three days) and urinalysis outcomes were similarly associated with the gang‐membership variables. These findings suggest that self‐reported data obtained from gang members is a particularly robust method for gathering information on their recent behavior. Additionally, our results were supportive of the social facilitation model, showing that current gang members were significantly more likely to use marijuana and cocaine compared with former gang members. The implications for policy and future research are discussed.     

Gang Membership,Drug Selling,and Violence in Neighborhood Context

A prominent perspective in the gang literature suggests that gang member involvement in drug selling does not necessarily increase violent behavior. In addition it is unclear from previous research whether neighborhood disadvantage strengthens that relationship. We address these issues by testing hypotheses regarding the confluence of neighborhood disadvantage, gang membership, drug selling, and violent behavior. A three‐level hierarchical model is estimated from the first five waves of the 1997 National Longitudinal Survey of Youth, matched with block‐group characteristics from the 2000 U.S. Census. Results indicate that (1) gang members who sell drugs are significantly more violent than gang members that don’t sell drugs and drug sellers that don’t belong to gangs; (2) drug sellers that don’t belong to gangs and gang members who don’t sell drugs engage in comparable levels of violence; and (3) an increase in neighborhood disadvantaged intensifies the effect of gang membership on violence, especially among gang members that sell drugs.     

Using Propensity Score Matching to Understand the Relationship between Gang Membership and Violent Victimization: A Research Note

Due to methodological limitations, such as unmatched gang samples and a lack of longitudinal investigations, it remains unresolved whether joining a gang leads to future violent victimization or both share a set of common causes. Guided by selection, facilitation, and enhancement perspectives, the current study applied Propensity Score Matching on data from the Gang Resistance Education and Training longitudinal study to investigate the nature of the gang‐violent victimization relationship. Results indicated antecedent differences between those who did and did not join gangs, particularly violent victimization and delinquency. When gang and non‐gang members with similar propensities for joining were matched, the relationship between gang membership and violent victimization dissipated. Findings suggest policy attention to early delinquency and victimization risk factors generally.     

THE ECOLOGY OF GANG TERRITORIAL BOUNDARIES*

Within any type of system, the actors in the system inevitably compete over resources. With competition comes the possibility of conflict. To minimize such effects, actors often will partition the system into geographic territories. It is against the larger ecological backdrop of competition and conflict that we examine territory formation among urban street gangs. Although previous studies have examined the social and built environment where gangs form, and how the presence of a gang influences local levels of violence, we know little about how competitive interactions are tied to the formation and maintenance of gang territories. We use formal spatial Lotka–Volterra competition models to derive hypotheses about competition‐driven territory formation. By using data on 563 between‐gang shootings, involving 13 rival street gangs in the Hollenbeck Policing Division of Los Angeles, we show that violence strongly clusters along the boundaries between gangs in a way that is quantitatively predicted by the theory. The results suggest that even weak competitive interactions between gangs are sufficient to drive gang territory formation without recourse to other processes or assumptions.     

Does gang membership pay? Illegal and legal earnings through emerging adulthood*

Gang membership is believed to impede success in the legitimate economic market while simultaneously supporting success in the illegal market. We extend the study of the economic effects of gang membership by using a within‐ and between‐individual analytic design, decomposing gang membership into multiple statuses (i.e., entering a gang, continuously in a gang, leaving a gang, and inactive gang membership), examining legal and illegal earnings simultaneously, and accounting for factors endogenous to gang membership that may contribute to economic achievement. By using panel data from 1,213 individuals who participated in the Pathways to Desistance Study to conduct a multilevel path analysis, we find that active gang membership status is unrelated to legal earnings. Alternatively, entering a gang is associated with increased illegal earnings, attributable to changes in delinquent peers and drug use, whereas leaving a gang has a direct relationship with decreased illegal earnings. Our results indicate that the positive economic effect of gang membership (i.e., illegal earnings and total earnings) is short‐lived and that, on balance, the sum of the gang membership experience does not “pay” in terms of overall earnings.     

Do perceptions of neighborhood disorganization predict crime or victimization? An examination of gang member versus non-gang member jail inmates

This study examines the effects of perceptions of social disorganization on crime perpetration and victimization among a sample of incarcerated adult gang and non-gang members. Using survey data from 2,414 jail inmates, results suggest that gang members are significantly more likely than non-gang members to be both perpetrators and victims of property and personal crimes. Results also indicate substantive similarities and differences between gang members and non-gang members with regard to crime, victimization, and perceptions of social disorganization. Inmates’ perceptions of the level of social disorganization in their neighborhoods are more strongly related to their reported offending behavior than to their reported victimization.     

“I GOT YOUR BACK”: AN EXAMINATION OF THE PROTECTIVE FUNCTION OF GANG MEMBERSHIP IN ADOLESCENCE*

The threat of victimization has been regarded as a central feature in both the development and the continuation of youth gangs. Although many studies find the need for protection to be a common reason youth join gangs, recent literature suggests that gang members are at an increased risk of victimization. Given this seeming contradiction between expectations and reality, the current article examines the “objective” and “subjective” dimensions of gang member victimization using panel data collected from youth between the ages of 10 and 16 years. Findings reveal that gang members report higher levels of actual victimization and perceptions of victimization risk than non‐gang‐involved youth. Gang membership is associated with reduced levels of fear, however. Overall, although gangs may not be functional in terms of actual victimization, they seem to decrease anxiety associated with the threat of future victimization.     

Violence Prevention and Targeting the Elusive Gang Member

Who do violence preventers target to achieve violence prevention? This fundamental question of selection is typically associated with law enforcement, yet gang labeling is critical in another context: nonprofit violence prevention. Eighteen months of fieldwork in a gang outreach organization find that (a) workers operationalize gang violence prevention as social service provision, but (b) services are only offered to those deemed “ready” for life changes. Readiness is an unwritten eligibility criteria leveraged as a rhetorical tool to focus recruitment on clients who demonstrate complicity. It is reaffirmed through external pressures to document program effectiveness; organizational‐level concerns for efficient resource allocation; the subpopulation of clients who actually want services; and workers’ own fears of “getting played”—losing face from free‐riding clients interested in street worker perks, but not formal services. While core gang members may be most at‐risk, their very centrality may deter, rather than justify, providing them services.     

Gangs and Violence: Disentangling the Impact of Gang Membership on the Level and Nature of Offending

Objectives

To determine whether membership in youth gangs provides a unique social forum for violence amplification. This study examines whether gang membership increases the odds of violent offending over and above involvement in general delinquent and criminal behavior.

Methods

Five waves of data from a multi-site (seven cities) panel study of over 3,700 youth originally nested within 31 schools are analyzed. We estimate four level repeated measures item response theory models, which include a parameter to differentiate the difference in the log of the expected event-rate for violent offense items to the log of the expected event-rate for nonviolent offense items.

Results

Depending on the comparison group (gang youth, overall sample), periods of active gang membership were associated with a 10 or 21% increase in the odds of involvement in violent incidents. When the sample is restricted to youth who report gang membership during the study, the proportionate increase in the odds of violence associated with gangs is statistically similar for males and females. After youth reported leaving the gang their propensity for violence was not significantly different than comparison group observations, although levels of general offending remain elevated.

Conclusions

While results are limited by the school-based sampling strategy, the importance of gang prevention and intervention programming for violence reduction is highlighted. Preventing youth from gang membership or shortening the length of gang careers through interventions may reduce absolute levels of violence.     

Adolescent Male and Female Gang Members’ Experiences with Violent Victimization, Dating Violence, and Sexual Assault

A substantial amount of scholarship has been devoted to examining the relationship between gang membership and criminal offending. This research has produced a wealth of qualitative and quantitative studies indicating that gang membership increases the likelihood of criminal offending for both males and females. Less research, however, has examined the relationship between gang membership and violent victimization. The present study adds to the literature by examining the relationship between gender, gang membership, and three types of victimization. Specifically, this paper focuses on whether self-reported gang membership is uniquely related to victimization experiences for females compared to males. Results from a statewide survey of public high school students in South Carolina indicate that gang membership is significantly related to the risk of victimization for both males and females. The implications of these findings for research and policy are discussed.     

Gang Membership,Gun Carrying,and Employment: Applying Routine Activities Theory to Explain Violent Victimization Among Inner City,Minority Youth Living in Extreme Poverty∗

Conceptual inconsistencies in routine activities theory are illustrated by demonstrating how gang membership, gun carrying, and employment can be categorized as both risk and protective factors in a high‐poverty context. Two waves of longitudinal data from a high‐poverty sample of African American youth were used to examine the determinants of victimization risk. Bivariate analyses indicated that gang membership, gun carrying, and employment status are significant risk factors for violent victimization, but these effects were mediated by measures of lifestyles (e.g., demographic and family factors, deviant lifestyles) included as controls in the full multivariate model. In other words, the strong positive relationship between gang membership and gun carrying found in previous studies may be due to model misspecification and/or the lack of research on high‐poverty samples of inner city youth from the Deep South. Additional logistic regression analyses also indicate that the number of hours employed per week (but not employment status) is a risk factor for violent victimization. Finally, the theoretical implications of these findings for routine activities theory are discussed.     

Dangerous Places: Gang Members and Neighborhood Levels of Gun Assault

Despite attention to the role of gangs in urban gun violence, much remains to be learned about the spatial distribution and consequences of residential gang membership. This study uses data from St. Louis to examine the effects of resident gang membership on rates of gun assault. We also consider whether gun violence is conditioned by the level of gang membership in surrounding communities. As anticipated, communities with the highest number of gang members also have the highest rates of gun assault. However, much of the impact of gang membership on gun assaults extends outside of the boundaries of gang neighborhoods, especially those neighborhoods with few or no gang members. The number of gang members in surrounding neighborhoods has no discernible effect on gun assaults in communities with higher rates of gang membership. Finally, controlling for the spatial proximity of residential gang membership helps to account for some of the association between neighborhood disadvantage and gun assaults.