A Realist Evaluation Approach to Understanding the Best Value Review Process

This article evaluates a sample of ten Best Value reviews (BVRs) using realist evaluation techniques. The underlying logic of the BVR process is taken from a reconstruction of the relationship between the review context, the mechanisms used in undertaking the review and outcomes achieved. This 'abstract configuration' is then used to map the actual processes driving the sample BVRs (the 'focused configurations') and variances explored. These variances suggest difficulties in diagnosing the root causes of service problems and selecting appropriate resolution mechanisms. Stakeholder pressure appears to be crucial in determining the focused configurations. The realist method enables the exploration of the precise intent of stakeholders. This capacity demonstrates the efficacy of a theory-based approach to understanding Best Value.     

Stranger sexual homicide: an exploratory behavioural analysis of offender crime scene actions

ABSTRACT

This study explores the role and function of homicidal and sexual violence in cases of stranger sexual homicide. The aim was to determine whether the instrumental/expressive hypothesis of physical violence and the overt/covert hypothesis of sexual violence applies to this crime. The method involved an analysis of the crime scene actions of 81 British stranger sexual killers using multidimensional scaling. Results suggest the instrumental/expressive hypothesis of physical violence and the overt/covert hypothesis of sexual violence does apply to stranger sexual homicide but they manifest as instrumental/overt and expressive/covert superordinate themes comprising four sub-themes reflecting rape, impersonal sexual assault, overkill and control. Although these superordinate themes can explain some stranger sexual homicides, a key hypothesis of this study is that the four sub-themes can also combine into different superordinate themes, knowledge of which can aid our understanding of this serious and deviant form of interpersonal violence.     

Variation in decomposition stages and carrion insect succession in a dry tropical climate and its effect on estimating postmortem interval

Insects have an important role in minimum postmortem interval (PMI_min) estimation. An accurate PMI_min estimation relies on a comprehensive study of the development and succession of local carrion insects. No published research on carrion insect succession exists for tropical north Queensland. To address this, we aimed to obtain preliminary observational data concerning the rate of decomposition and insect succession on pig carcasses in Townsville and compare these with other regions of Australia and overseas. Adult insects were collected daily from three pig carcasses for 30 d during summer and identified to family level. Observations of decomposition rate were made each day and progression through the stages of decomposition were recorded. Adult insects were identified to family and their presence/absence used as a proxy for arrival at/departure from the remains, respectively. These preliminary data highlight several interesting trends that may be informative for forensic PMI_min estimation. Decomposition was rapid: all carcasses were at the dry/remains stage by Day 5, which was substantially quicker than all other regions in the comparison. Differences were also observed in the presence/absence of insect families and their arrival and departure times. Given the rapid progression through early decomposition, we argue that later-arriving coleopteran taxa may be more forensically informative in tropical Australia, in contrast with temperate regions where Diptera appear most useful. This research contributes preliminary observational data to understanding insect succession patterns in tropical Australia and demonstrates the critical need for comprehensive local succession data for each climatic region of Australia to enable accurate PMI_min estimation. These data will inform future research targeted at gaining a more comprehensive understanding of insect succession in the Australian tropics.

Key points:

• We obtained preliminary observational data concerning the rate of decomposition and insect succession on pig carcasses in tropical Australia.
• Decomposition was rapid: all carcasses were at the dry/remains stage by Day 5.
• Coleopteran taxa may be more forensically informative in tropical Australia than dipterans.

     

Analysis and discrimination of electrical tapes: part II. Backings

The backings of 90 black electrical tapes were analyzed to evaluate the chemical components of these films, the ability of individual techniques to discriminate samples, and the ability of the techniques combined to distinguish samples. The techniques utilized and their respective discrimination results were stereomicroscopy and physical measurements, to include observation of surface features of the backing, width, and thickness measurements (c. 64%); Fourier transform infrared spectroscopy (FTIR) using a microscope accessory (c. 83%); pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS; c. 81%); and scanning electron microscopy/energy-dispersive spectroscopy (SEM/EDS; c. 87%). Ninety-four percent of the backings were discriminated through this combination of analytical methods. Finally, evaluating these results in conjunction with previously published data on the analysis of the adhesives from the same set of electrical tapes provided an overall discrimination of nearly 96%.     

From laboratory to the street: Capturing witness memory using the Self‐Administered Interview

The Self‐Administered Interview (SAI^©) is a tool designed to elicit a comprehensive initial account from witnesses at the scene of an incident or shortly thereafter to inoculate against the loss of information associated with delayed interview. Drawing on the principles of the Cognitive Interview (CI), the SAI^© provides witnesses with a series of instructions and retrieval cues to support recall. Requesting that witnesses complete an SAI^© not only serves to preserve and protect memory but also enables officers to prioritize the allocation of policing resources during the critical early stages of an investigation. The current review traces the development of the SAI^© from a series of laboratory studies through to field trials and integrates our findings with theoretical accounts of human memory. We present new data from trials of the tool in the field and consider future avenues for research and further development of the SAI^©.     

Regulating tissue research: do we need additional rules to protect research participants?

This article explores whether additional rules are needed for the regulation of tissue research in Europe. A human rights-based approach (referring to international documents and illustrative examples from national legislation) is taken to address the question: what is so special about tissue, in particular when compared to personal data? The existing regimes in Europe on data protection and clinical trials are presented and examined for their suitability to govern tissue research, taking into account the differences between data and tissue. Six recommendations are outlined, highlighting important points future legislation on tissue research must take into account.     

The economic analysis of antitrust consents

Henry G. Manne, our friend, Mentor, and colleague, was a pioneer in the economic analysis of law. By consistently challenging the notion that existing institutions were well understood, he expanded the domain of economics to new and fertile ground. In that spirit, our goal in this article is to bring out of the shadows an institution that has thus far evaded the light of economic analysis: antitrust consents. In our view, competition authorities around the world should be asking themselves what ratio of litigation to settlement is optimal for their agency. Over the last 35 years, the United States Federal Trade Commission and the Antitrust Division of the Department of Justice have shifted dramatically toward greater reliance upon consent decrees than upon litigation to resolve antitrust disputes. As an aid to national competition agencies considering the desirability of adopting a similar approach, we focus upon the importance of economic analysis in evaluating movement along the continuum from a law enforcement model to a regulatory model of agency behavior. We draw upon the U.S. experience to substantiate our claim that the costs associated with a shift toward the regulatory model, including the potential distortion in the development of substantive antitrust doctrine, may be under-appreciated and discernable only in the long run. We acknowledge that consent decrees can and should be an important tool in an antitrust agency’s toolkit for resolving antitrust disputes. We contend, however, that a full economic analysis of reliance primarily upon consent decrees is necessary to inform each competition agency’s strategic decision about the optimal mix of law enforcement and regulatory techniques.