Formal System Processing of Juveniles: Effects on Delinquency

Justice practitioners have tremendous discretion on how to handle juvenile offenders. Police officers, district attorneys, juvenile court intake officers, juvenile and family court judges, and other officials can decide whether the juvenile should be “officially processed” by the juvenile justice system, diverted from the system to a program, counseling or some other services, or to do nothing at all (release the juvenile altogether). An important policy question is which strategy leads to the best outcomes for juveniles. This is an important question in the United States, but many other nations are concerned with the decision to formally process or divert juvenile offenders. There have been a number of randomized experiments in the juvenile courts that have examined the impact of juvenile system processing that should be gathered together in a systematic fashion to provide rigorous evidence about the impact of this decision on subsequent offending by juveniles. Our objective is to answer the question: Does juvenile system processing reduce subsequent delinquency? Based on the evidence presented in this report, juvenile system processing appears to not have a crime control effect, and across all measures appears to increase delinquency. This was true across measures of prevalence, incidence, severity, and self-report. Given the additional financial costs associated with system processing (especially when compared to doing nothing) and the lack of evidence for any public safety benefit, jurisdictions should review their policies regarding the handling of juveniles

Diversion in youth justice: a pilot study of effects on self-reported mental health problems

As part of a larger study to evaluate the effects of a Liaison and Diversion scheme in community youth justice services, staff of newly established Youth Justice Liaison and Diversion (YJLD) teams undertook observational ratings and administered self-report mental health and risk measures to young people referred to this pathway. The overall objectives of the YJLD project were to divert young people from the criminal justice system and to coordinate other services in order to reduce their likelihood of reoffending and the extent of their mental health problems. Data were collected from five local authority areas in different parts of England. Young people thereby referred had an average of 5.4 h of contact with youth justice staff. For a sample of young people on whom data were available at the beginning and end of that process, there was evidence of a significant reduction in problems and a small but significant correlation between the amount of individual contact time with YJLD staff and the extent of change observed. Absence of a comparison sample limits the drawing of firm conclusions; however, recommendations are made for future controlled experimental studies

A review of effective interventions for reducing aggression and violence

This paper addresses the question of whether individual violence can be reduced in frequency or severity, if so to what extent and by which methods. It opens with a brief overview of the nature of personal violence and discussion of some key definitional and methodological problems. However, its principal focus is on the findings obtained from a series of meta-analytic reviews of structured programmes for adolescents and adults who have shown repeated aggression or been convicted of personal violence, drawing together the results of studies conducted in prison, probation, youth justice and allied services. Additional results are considered from a systematic review of studies of violence prevention among offenders with mental disorders. This incorporates the preliminary findings of a meta-analysis of controlled trials of psychosocial interventions with that population. Overall, it is concluded that there is sufficient evidence currently available to substantiate the claim that personal violence can be reduced by psychosocial interventions, but that much more research is required to delineate the parameters of effectiveness in this context. Proposals are made for future investigations with reference to the theoretical understanding of causal relationships and the design of experimental trials