Field Experiments on Eyewitness Identification: Towards a Better Understanding of Pitfalls and Prospects

The Illinois pilot program on lineup procedures has helped sharpen the focus on the types of controls that are needed in eyewitness field experiments and the limits that exist for interpreting outcome measures (rates of suspect and filler identifications). A widely-known limitation of field experiments is that, unlike simulated crime experiments, the guilt or innocence of the suspects is not easily known independently of the behavior of the eyewitnesses. Less well appreciated is that the rate of identification of lineup fillers, although clearly errors, can be a misleading measure if the filler identification rate is used to assess which of two or more lineup procedures is the better procedure. Several examples are used to illustrate that there are clearly improper procedures that would yield fewer identifications of fillers than would their proper counterparts. For example, biased lineup structure (e.g., using poorly matched fillers) as well as suggestive lineup procedures (that can result from non-blind administration of lineups) would reduce filler identification errors compared to unbiased and non-suggestive procedures. Hence, under many circumstances filler identification rates can be misleading indicators of preferred methods. Comparisons of lineup procedures in future field experiments will not be easily accepted in the absence of double-blind administration methods in all conditions plus true random assignment to conditions.     

Spatio-Temporal Interaction of Urban Crime

Over the past decade, a renewed interest in the analysis of crime hot-spots has emerged in the social and behavioral sciences. Spurred by improvements in computing power, data visualization and geographic information systems, numerous innovative approaches have materialized for identifying areas of elevated crime in urban environments. Unfortunately, many hot-spot analysis techniques treat the spatial and temporal aspects of crime as distinct entities, thus ignoring the necessary interaction of space and time to produce criminal opportunities. The purpose of this paper is to explore the utility of statistical measures for identifying and comparing the spatio-temporal footprints of robbery, burglary and assault. Functional and visual comparisons for spatio-temporal clusters are analyzed across a range of space–time values using a comprehensive database of crime events for Cincinnati, Ohio. Empirical results suggest that robbery, burglary and assault have dramatically different spatio-temporal signatures.

Assessing treatment readiness in violent offenders

Although violent offenders are widely considered to be difficult to engage in therapeutic change, few methods of assessing treatment readiness currently exist. In this article the validation of a brief self-report measure designed to assess treatment readiness in offenders who have been referred to violent offender treatment programs is described. The measure, which is an adaptation of a general measure of treatment readiness developed in a previous work, displayed acceptable levels of convergent and discriminant validity and was able to successfully predict treatment engagement in violent offender treatment. These results suggest that the measure has utility in the assessment of treatment readiness in violent offenders.     

Death Caused by Toxic Epidermal Necrolysis (Lyell Syndrome)

Abstract: Toxic epidermal necrolysis (TEN) is characterized by fever, scalded appearance of the skin, and epidermolysis associated to blister formation and exfoliation, and it is caused by hypersensitivity reaction to a drug. The authors report two cases of death as a result of TEN; both referred to old aged women treated with a polytherapy including allopurinol. Both patients displayed erythematous skin lesions similar to scald burns and epidermolysis at the face, chest, and abdomen and died shortly after hospitalization. Autopsy findings and histological examinations revealed epidermal necrolysis and confirmed the clinical diagnosis. A strict time‐correlation between allopurinol administration and symptoms was evidenced. Because of its iatrogenic origin, TEN often arises suspicions of medical liability; however, because of its unpredictable nature, the occurrence of this syndrome cannot be ascribed to the medical staff whose main task is the rapid diagnosis and the correct management.     

Psycholegal Assessment of Co-occurring Chronic Pain and Schizophrenia Post-MVC: Analysis of Causation Using Two Case Examples

The key aspect of any psycholegal assessment is the analysis of causation, which requires consideration of important legal constructs such as the but for test, material contribution test, thin skull, and crumbling skull. An analysis of causation can be especially helpful in determining overall liability when evaluating the impact of two major co-occurring conditions. This paper focuses on the utility of conducting an analysis of causation using two case examples in which chronic pain and schizophrenia co-occurred following a motor vehicle collision (MVC). Collision-related injuries often lead to the development of chronic pain and could result in permanent and serious impairment and disability. Schizophrenia is a rare psychological occurrence in the collision context and is associated with its own unique and overwhelming physical, psychological, and cognitive challenges. In the psycholegal context, evaluating the impact of two major co-occurring conditions can be problematic and lead to conceptual challenges. In the two cases presented, some assessors attributed nearly all post-collision changes to schizophrenia as if it were pre-existing or in a latent state and failed to assess or even consider the contribution of MVC-related sequelae to the onset of schizophrenia. As part of addressing these conceptual challenges, we present a model of psycholegal assessment that takes into account the pre-, peri- and post-MVC variables that best explain the occurrence of these two conditions. The model also allows the assessor to determine the current and future needs of injured persons, the permanent physical, psychological, and cognitive sequelae that impact quality of life and/or work, and prognosis for the near and distant future.