A growing body of research has demonstrated the deleterious effects of adverse childhood experiences (ACEs). Less understood is the role of ACEs in gang involvement among juvenile offenders. The current longitudinal study employs a sample of 104,267 juvenile offenders (mean age of 16, 76% male, 46% Black non-Hispanic, 15.7% Hispanic) to examine the effect of ACE exposure on two different measures of gang involvement by age 18. We use structural equation modeling to test whether higher ACE exposure at Time 1 predicts gang involvement and whether current substance use and/or difficult temperament mediates the ACE-gang involvement relationship. Results indicate ACE exposure at Time 1 predicts gang involvement by age 18, but that much of the effect of ACEs on later gang involvement can be explained by their impact on current substance abuse and difficult temperament. Implications for juvenile justice systems are discussed.

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This study examines whether victims of violent street crimes who are known to the police as past offenders, when compared with victims with no arrest history, have different outcomes related to receipt of victim and health-related services, while taking into consideration whether or not police responded to the victimization incident. The sample is comprised of 103 men and women between the age of 18 and 40 living in one Mid-Atlantic city who were victims of street violence within the year before study recruitment. Logistic regression was used to assess the impact of police response to the victimization incident on receipt of victim services, and receipt of victim services on engagement with counseling and mental health services. The results show that prior arrests were not associated with receipt of services. However, having police officers respond to the victimization was associated with higher odds of receiving victim services, and in turn, victim services were associated with receiving mental health treatment. Police response appears to set victims on a path to accessing services. Although the number of arrests was not associated with service receipt, a small percentage of victims who did not receive services stated they were reluctant to cooperate with the police, thus limiting their opportunity for victim services. Because most victims who did not access victim services did not know that they existed, policies that promote more knowledge of and initial engagement with victim services could improve access to needed health and mental health services.

The number of jurisdictions implementing focused deterrence strategies targeted at gangs continues unabated. Although recent research suggests positive impacts of the strategy on reductions in gun violence, little is known about the particular mechanisms operating behind the strategy. This article provides a descriptive analysis of the law enforcement activities or levers undertaken after enforcement operations in Philadelphia as a part of the focused deterrence strategy. The article quantifies the execution of levers related to arrest, case processing, and probation sanctioning during enforcement activities after shootings. The results show that Philadelphia achieved success in implementing the enforcement levers as intended, and there was little evidence that arrest practices were overly aggressive. The authors suggest that future evaluations seek to carefully document the wide array of levers used in concert with an assessment of community understanding of and reactions to the strategy as well as an examination of reactions of group members targeted.