The impact of adult drug courts on crime and incarceration: findings from a multi-site quasi-experimental design

Objectives  

To test the impact of adult drug courts on future criminal behavior and sentence length on the precipitating criminal case; and to examine whether the magnitude of the drug court impact varies based on drug use or criminal history, social ties, mental health, or offender demographics.     

Hot spots policing and crime prevention: A systematic review of randomized controlled trials

Crime scholars and practitioners have argued that police actions should be focused on high-risk crime places rather than spread thinly across the urban landscape. This review examines five randomized controlled trials of the effects of concentrating police enforcement efforts on crime hot spots. The findings of these evaluations suggest that focused police actions can prevent crime and disorder in crime hot spots. A meta-analysis of the effect sizes from the five experiments reveals a statistically significant mean effect size for hot spots policing interventions; this suggests overall reductions in citizen calls for service in the treatment hot spots relative to the control hot spots. These studies also suggest that focused police actions at specific locations do not necessarily result in crime displacement. Although these evaluations reveal that these programs work in preventing crime, additional research is needed to unravel other important policy-relevant issues such as community reaction to focused police enforcement efforts.     

Closing Off Opportunities for Crime: An Evaluation of Alley-Gating

A new situational crime prevention measure recently introduced into Great Britain involves the fitting of gates to alleyways running along the back of terraced properties to restrict access to local residents and reduce opportunities for offenders. A number of quantitative techniques were used to assess the success of the intervention in reducing burglary in the City of Liverpool. The results demonstrate that, relative to a suitable comparison area, burglary was reduced by approximately 37%, there was a diffusion of benefit to properties in the surrounding areas, and the scheme was cost beneficial with a saving of £1.86 for every pound spent. The analyses provide persuasive evidence that these reductions were attributable to the intervention. We argue that the methodological techniques demonstrated here can be applied more widely to crime prevention evaluations.     

The impact of program developers as evaluators on criminal recidivism: Results from meta-analyses of experimental and quasi-experimental research

Using meta-analysis, we report on an investigation of the evaluator's influence in the treatment setting on criminal recidivism outcomes. Many evaluators and users of evaluation of social interventions worry that mixing of the roles of program developer and program evaluator may bias results reported in intervention studies in a positive direction. We first review the results of prior investigations of this issue across 50 prior meta-analyses, finding 12 that tested the impact of investigator influence in the treatment setting. Eleven of these reported that effect size increased positively, sometimes substantially so, when evaluators were influential or involved in the treatment setting. We followed this with a meta-analysis of 300 randomized field trials in individually focused crime reduction, also finding intervention studies in which evaluators who were greatly influential in the treatment setting report consistently and substantially larger effect sizes than other types of evaluators. We discuss two major views — the ‘cynical’ and ‘high fidelity’ theories — on why this is consistently the case, and conclude with a further agenda for research.     

The impact of CCTV on fundamental rights and crime prevention strategies: The case of the Catalan Control Commission of Video surveillance Devices

Many authors have written about issues related to privacy, legitimacy and efficiency in relation to CCTV systems in public space as a crime prevention strategy. Some have approached them separately; others have tried to come up with more comprehensive approaches. Few, however, have dealt with how such concerns have been put into practice by those who have to decide on the uptake of CCTV. This article considers some reflections on efficacy, legitimacy and privacy in relation to CCTV, as an introduction to the case of how the members of the Control Commission of Video surveillance Devices in Catalonia took these issues into consideration and interpreted the Law when deciding whether to approve a petition submitted by the City Council to install three cameras in Barcelona’s public space in 2003. It concludes by drawing some conclusions from the process, as a way to highlight the complexity of the policy process around surveillance in open, public spaces.     

Think Nationally,Act Locally: The Municipal-Level Effects of the National Crime Prevention Program in Finland

This paper gauges the effects of the National Crime Prevention Program (NCPP) on the level of crime in Finland. The research design involves comparisons between municipalities that vary in terms of their participation in the NCPP. Is this characteristic related to improvements in community safety? The analyses utilize data from victim surveys as well as police statistics. Findings from each type of analysis suggest that active participation in the national initiative has not resulted in reduced levels of crime and violence. The study concludes with a set of recommendations for improving the effectiveness of the NCPP.     

Constructing an index of officially recorded crime: The use of confirmatory factor analysis

Researchers using officially reported crime statistics must frequently combine rates of individual crimes into a single composite. The most popular composite is the FBI Crime Index, which is the sum of the seven Part I crimes; alternatives include forming separate indices for personal and property crimes and weighting the crime categories by their seriousness before summing them. In this paper we construct crime composites through the use of confirmatory factor analysis methods. The results suggest that the measurement assumptions of conventional crime indices are problematic and demonstrate how more satisfactory alternatives can be developed with confirmatory factor analysis techniques.     

The effects of deprivation on the time spent examining crime scenes and the recovery of DNA and fingerprints

DNA and fingerprint identifications are now accepted as an integral part of the investigation of a wide range of criminal offences from burglary and auto crime to serious and major crime. Despite this, there is still much variation between U.K. police forces in the recovery of fingerprint and DNA material from crime scenes. Analysis of burglary and auto crime data for Northamptonshire, U.K., during a 3-year period has enabled an examination of the relationship between the deprivation of the neighborhood in which the crime was committed and the level of service provided by Crime Scene Examiners. The results indicate that the time spent examining a crime scene for forensic evidence is not affected by the deprivation of the neighborhood. Further, there is no statistical significance between deprivation and the recovery of fingerprints from the crime scene. The relationship between deprivation and DNA recovery is, however, statistically significant with DNA being recovered more frequently from less deprived neighborhoods.     

The effects of an experimental intensive juvenile probation program on self-reported delinquency and drug use

In the late 1990s Ventura County, California, USA, implemented the South Oxnard Challenge Project (SOCP), designed to provide intensive, multi-agency services to youth on probation. SOCP built their program guided by Clear’s “corrections of place” model, which argued that community corrections could decrease offender risk by focusing on restorative principles rather than on coercion. SOCP was designed as a randomized experiment, comparing youths in the experimental group with those on routine probation. Researchers interviewed youths in both the experimental and control groups 1 year after random assignment. This article reports on self-reported crime and drug use, finding few significant differences across groups. Specifically, we find that SOCP youths were significantly more likely to indicate that they had committed a violent crime generally, although a majority of both groups indicated they had done so. We found that those in SOCP who robbed people also did so significantly more often than did the comparison group. In the control group, youths reported committing homicide significantly more often, but this was a rare event. Among those youths who reported taking part in gang or posse fights, those in the control group did so significantly more often. Finally, youths in the control group were significantly more likely to have used ecstasy on more days during the previous month than were those in the SOCP.

The effects of the second Intifada,terrorist acts,and economic changes on adolescent crime rates in Israel: A research note

Designed as a field quasi-experiment, this study analyzes the differences in Jewish adolescent crime rates before and after the inception of the second Intifada (September, 2000). Data covers the years between 1996 and 2003. The study focused on the relationship between the number of terrorist acts, the number of deaths in these acts, economic changes, and crime rates (murder, manslaughter, assault, mugging and robbery and property-related). The findings of the study were analyzed in terms of current theories on the impact of social and security-related stress on adolescents. The results show that the second Intifada has had significant effects on male adolescent crime rates. In particular, the number of terrorist acts was significantly associated with the following offences: assault, robbery, and manslaughter. No significant differences were found for adolescent female crime rates. Economic changes were significantly negatively related both to male adolescent crime for all the offences studied, as well as to property-related female offences.