Evaluation of immunoassay methods for the screening of cocaine metabolites in urine

Immunoassay kits for urine cocaine (and metabolite) screening, obtained from two commercial sources, were examined for correlation of their results, expressed in terms of equivalent benzoylecgonine concentration, with the gas chromatography/mass spectrometry (GC/MS) concentration of benzoylecgonine. The correlation coefficients obtained, based on 62 (out of a total sample population of 3295) highly relevant samples, were 0.467 and 0.766 for Abuscreen (ARIA) and TDx (TDX), respectively. The preliminary screen cutoff values, which correspond to 150 ng/mL benzoylecgonine (as determined by GC/MS), were calculated based on the resulting regression equations and found to be 380 and 190 ng/mL for ARIA and TDX, respectively. With these cutoff values, ARIA generates 5 false negatives and 16 unconfirmed presumptive positives, while TDX results in 3 false negatives and 6 unconfirmed presumptive positives.     

Halfway houses and parole: A national assesment

As part of a 1978 national study of parole, the roles of halfway houses for criminal offenders were examined. It was found that the number of halfway houses began to expand rapidly in the 1960s, and that both services and types of clientele proliferated in the 1970s. Three underlying assumptions of halfway houses were examined, and a topology of houses was developed. It was concluded that halfway houses may be as effective as any other parole program and strategy and may be more cost effective at this time. Future research should further clarify and expand on types of houses and their treatment modalities, linking treatment outcomes to recidivism and reintegration, as well as on including more adequate comparison groups.     

Self-report and official measures: A further examination of the validity issue

The relationship between self-report and official measures of crime remains unclarified. Adequate examinations of the comparability of the two measures have been limited because of the difficulty of obtaining both official and self-report data on the same subjects. In the present study, the authors use police records and self-report data on police contacts for members of a birth cohort, and find a substantial level of agreement between the two data sources. However, by incorporating data on police contact seriousness and a variety of demographic characteristics, the authors find some evidence of under- and over-reporting by various groups of cohort members. The authors suggest reasons for both the over- and under-reporting, and offer suggestions for future research.     

Zero Base Budgeting: The Manager's Budget

This article offers an assessment of zero-base budgeting (ZBB) derived from a field study conducted by the Urban Institute and supported by the National Science Foundation. Four cities and four states participated in the study, and several hundred public officials were interviewed.     

Exploratory trial of schema-focussed therapy in a forensic personality disordered population

The management of needs and risks in personality disordered offender populations has become a focus for health and criminal justice services in the UK. Recent studies demonstrate the effectiveness of schema focussed therapy (SFT) for patients with borderline personality disorder. This study was an exploratory trial of the feasibility of implementing SFT in a population of patients with personality disorder in a high secure hospital in England. Preliminary evaluations of the effects of SFT were conducted to investigate whether those receiving SFT demonstrated significant improvements on measures of anger, impulsiveness, schemata and interpersonal style. No significant effects were evident although there was a significant increase in defectiveness/shame schema in the SFT group. Lack of effectiveness of SFT is likely due to the preliminary nature of this study. Future trials of SFT need to ensure comprehensive therapist preparation, control of TAU, bigger samples, address attrition and provide more intensive therapy.     

Conclusions from the history of research into the effects of police force size on crime—1968 through 2013: a historical systematic review

Objectives

We describe and explain how the findings from nonexperimental studies of the relationship between police force size and crime have changed over time.

Methods

We conduct a systematic review of 62 studies and 229 findings of police force size and crime, from 1971 through 2013. Only studies of U.S. policing and containing standard errors of estimates were included. Using the robust variance estimation technique for meta-analysis, we show the history of study findings and effect sizes. We look at the influence of statistical methods and units of analysis, and time period of studies’ data, as well as variation in police force size over time.

Results

Findings vary considerably over time. However, compared to research standards and in comparison to effect sizes calculated for police practices in other meta-analyses, the overall effect size for police force size on crime is negative, small, and not statistically significant. Changes in research methods and units of analysis cannot account for fluctuations in findings. Finally, there is extremely little variation in police force size per capita over time, making it difficult to estimate the relationship with reliability.

Conclusions

This line of research has exhausted its utility. Changing policing strategy is likely to have a greater impact on crime than adding more police.