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.     

高校暴力犯罪行为分析及预防对策

高校暴力犯罪是由于大学生不能正确对待遭受的重大挫折、模仿学习暴力行为、情感荒漠化和心理能量积聚后本能释放等原因造成的。为此,可建立大学生心理档案,以情绪宣泄等方式提高大学生的挫折承受力,净化社会环境并加大高校暴力犯罪惩罚的力度,陶冶并丰富大学生的情感世界,以预防和减少高校暴力犯罪行为的发生。     

精神障碍者暴力犯罪的防治对策探析

近年来,由精神障碍者实施的暴力犯罪的数量持续上升,对社会的危害日趋严重。精神障碍者之所以实施暴力犯罪,主要是由于三方面的原因:自身的病理原因、法律规定的不完善以及社会因素的作用。与精神正常的行为人相比,精神障碍者实施的暴力犯罪在作案对象、作案的时间地点方式、犯罪后的表现和犯罪动机等方面有其特殊性。针对其原因和特点,笔者认为应该从维护其合法权益、完善立法和预防等方面做防治工作。     

Police Officers on Drug Corners in Philadelphia,Drug Crime,and Violent Crime: Intended,Diffusion, and Displacement Impacts

On May 1, 2002, the Philadelphia Police Department launched Operation Safe Streets, stationing officers at 214 of the highest drug activity locations in the city 24 hours a day, 7 days a week. Interrupted time series (AutoRegressive Integrated Moving Average) models on weekly data isolated citywide and local program impacts on all violent crimes, murder, and reported drug crimes. Results showed no significant impacts on citywide weekly counts for drug crimes, homicides, or all violent crimes. Geographically focused analyses showed significant localized intervention impacts for both violent and drug crimes. Analyses of high‐drug‐activity non‐intervention sites suggest: the program impacts seen were not an artifact of history or local history; significant spatial diffusion of preventive benefits for violent crime; and probably significant spatial displacement for drug crime. Stationary targeted drug‐enforcement interventions like Operation Safe Streets may differentially affect the locational selection processes behind violent crime versus drug crime.     

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.     

Local Social Ties and Willingness to Intervene: Textured Views Among Violent Urban Youth of Neighborhood Social Control Dynamics and Situations

Social control in urban neighborhoods has been studied for over a century in America, yet our understanding of the dynamic nature of social relations for exerting informal social control remains limited. The present study uses detailed reports from those most likely to be the target of local control efforts—violent youth in extremely disadvantaged urban locations—to re‐examine two features of this work: variations across different hypothetical scenarios widely used in this research, and connections between local ties and intervention type and likelihood in actual events. In‐depth qualitative interviews from 159 violent males aged 16–24 from two distressed New York City neighborhoods identify ways in which responses to commonly used scenarios of informal social control are age‐ and space‐graded. Reports on the transactional nature of social control in violent events show how local ties may undermine, rather than support, social control processes. It would appear that we need to consider more carefully general suggestions about local ties encouraging more informal social control, move to a more textured, multithreaded view of these connections, and incorporate age‐ and space‐graded dynamics into future studies of social control.     

Suspect Communities—Targeting Violent Extremism at the Local Level: Policies of Engagement in Amsterdam,Berlin, and London

Throughout Europe, authorities have set up new policy measures and programs to curb homegrown violent extremists. This article describes local policy responses to violent Islamic extremism—and/or the mere threat of it—in the neighborhoods Oost in Amsterdam, Moabit and Soldiner Kiez in Berlin, and Tower Hamlets in London. Based on locally conducted fieldwork, the study compares and contrasts these neighborhoods’ approaches and aims to make a first assessment of their effects. A major finding for all three cities is that authorities target the entire local Muslim community rather than a few select individuals. This can lead to the construction of suspect communities, an approach with possible paradoxical effects on targeting actual violent extremists. Suspect communities subsequently create stigmatization, exclusion, and possibly marginalization, which not only has negative consequences for involved groups, but may well produce a breeding ground for future violence. However, the author did not find that engagement with Islamic organizations or individuals was used to directly change the nature of local Muslim communities. Orthodox and non-violent extremist organizations and individuals in all three cities were potential partners for engagement, which probably lowers the chance of stigmatizing the suspect communities.     

The Muslim paranoia narrative in counter-radicalisation policy

With the rise of the Islamic State of Iraq and Syria (ISIS), the issue of radicalisation has loomed large in Western policy debates. Recent summits on countering violent extremism have sought to highlight the importance of undermining extremist narratives, mobilising moderate Muslims who oppose ISIS and working to address drivers of radicalisation. This article explores the ideological underpinnings of this approach. It focuses on what I call the “Muslim paranoia narrative”, a recurring feature of Western radicalisation discourse that helpfully captures its ideological commitments and their contemporary significance. Analysing its manifestation in American political culture, I argue that the Muslim paranoia narrative indicates a powerful process of ideological reproduction that works against approaches to counter-radicalisation centred on engagement and collaboration with Muslim communities.