Origin,Analytical Characterization,and Use of Human Odor in Forensics

Developing a strategy to characterize the odor prints of individuals should be relevant to support identification obtained using dogs in courts of justice. This article proposes an overview of the techniques used for the forensic profiling of human odor. After reviewing the origin of human odor—both genetic and physiological—the different analytical steps from sample collection to statistical data processing are presented. The first challenge is the collection of odor, whether by direct sampling with polymer patches, cotton gauze, etc., or indirect sampling with devices like Scent Transfer Unit. Then, analytical techniques are presented. Analyses are commonly performed with gas chromatography coupled with mass spectrometry. As they yield large amounts of data, advanced statistical tools are needed to provide efficient and reliable data processing, which is essential to give more probative value to information.     

Supreme Court Elections: How Much They Have Changed,Why They Changed,and What Difference It Makes

This essay draws on four recent studies of elections to state supreme courts in the United States to probe widely perceived changes in the scale and content of electoral campaigns for seats on state supreme courts. 1 Evidence from these studies and other sources indicates that changes have indeed occurred, though they are more limited than most commentaries suggest. These changes stem most directly from trends in state supreme court policy that have attracted interest‐group activity, especially from the business community. Like their extent, the effects of change in supreme court campaigns have been meaningful although exaggerated by many observers. What we have learned about changes in supreme court elections has implications for choices among selection systems, but those implications are mixed and complex.     

Rational choice attitudinalism?

This essay reviews Epstein, Landes, and Posner’s The Behavior of Federal Judges: A Theoretical and Empirical Study of Rational Choice. Their book systematically asks how the role of ideology varies across the tiers of the federal judicial hierarchy. A major finding is that the impact of ideology increases from the bottom to the top of the judicial hierarchy. Their typical methodology formulates an ex ante measure of judicial ideology such as the political party of the appointing president, and demonstrates that this measure correlates with later judicial behavior, often voting on case dispositions. Along the way, they investigate a multitude of topics, including some quite under‐explored ones. We argue that ELP’s theory is only weakly connected to their empirical practice, for the latter focuses on the role of ideology in judging while the former says almost nothing about that relationship. In fact, though, their empirical practice does embed a theory of law and ideology, but one quite different from that suggested by the book’s rhetoric. In the penultimate section of the essay, we explore this disconnection between ELP’s theory, practice, and interpretation. Its origin (we argue) lies in an extremely thin conceptualization of law. We conclude with the issue posed in ELP’s final chapter, “The Way Forward,” but suggest a rather different path.     

Quantification of human mitochondrial DNA using synthesized DNA standards

Successful mitochondrial DNA (mtDNA) forensic analysis depends on sufficient quantity and quality of mtDNA. A real-time quantitative PCR assay was developed to assess such characteristics in a DNA sample, which utilizes a duplex, synthetic DNA to ensure optimal quality assurance and quality control. The assay's 105-base pair target sequence facilitates amplification of degraded DNA and is minimally homologous to nonhuman mtDNA. The primers and probe hybridize to a region that has relatively few sequence polymorphisms. The assay can also identify the presence of PCR inhibitors and thus indicate the need for sample repurification. The results show that the assay provides information down to 10 copies and provides a dynamic range spanning seven orders of magnitude. Additional experiments demonstrated that as few as 300 mtDNA copies resulted in successful hypervariable region amplification, information that permits sample conservation and optimized downstream PCR testing. The assay described is rapid, reliable, and robust.     

Extending the Confusion About Bayes

In R v T [2010] EWCA Crim 2439, [2011] 1 Cr App Rep 85, the Court of Appeal indicated that ‘mathematical formulae’, such as likelihood ratios, should not be used by forensic scientists to analyse data where firm statistical evidence did not exist. Unfortunately, when considering the forensic scientist's evidence, the judgment consistently commits a basic logical error, the ‘transposition of the conditional’ which indicates that the Bayesian argument has not been understood and extends the confusion surrounding it. The judgment also fails to distinguish between the validity of the relationships in a formula and the precision of the data. We explain why the Bayesian method is the correct logical method for analysing forensic scientific evidence, how it works and why ‘mathematical formulae’ can be useful even where firm statistical data is lacking.     

Criminal Contemplation,National Context,and Deterrence

Using random samples of adults from three European countries rarely surveyed about crime-related issues, this study seeks to identify, with more extensive indicators than is typical, individuals who are likely to contemplate the commission of criminal acts. Then, it assesses the contextual universality of deterrence claims by estimating the deterrent effectiveness of perceived formal and informal sanctions for theft and violence among crime contemplators in Greece, Russia, and Ukraine. With criminal contemplation taken into account, our findings confirm the patterns established in past research. Whereas the threat of formal punishment shows little deterrent effect, perceptions of informal sanctions appear to influence projected crime. However, supportive findings hold only in Russia and Ukraine. Overall, it appears that the deterrent effectiveness of sanctions may be to some extent contingent on cultural or contextual characteristics.     

The relationship of violent fathers, posttraumatically stressed mothers and symptomatic children in a preschool-age inner-city pediatrics clinic sample

This study aims to understand if greater severity of maternal posttraumatic stress symptoms (PTSS), related to maternal report of interpersonal violence, mediates the effects of such violence on (a) child PTSS as well as on (b) child externalizing and internalizing symptoms. Study participants were mothers (N = 77) and children 18 to 48 months recruited from community pediatric clinics. Data were analyzed continuously via bivariate correlations and then multiple linear regression. Post hoc Sobel tests were performed to confirm mediation. Paternal violence accounted for 15% of the variance of child PTSS on the PCIP-OR (β = .39, p ≤ .001). While the child's father being violent significantly predicts child PTSS related to domestic violence, as mentioned, when maternal PTSS is included in the multiple regression model, father's being violent becomes less significant, while maternal PTSS remains strongly predictive. Sobel tests confirmed that maternal PTSS severity mediated effects of paternal violence on clinician-assessed child PTSS as well as on maternal report of child externalizing and internalizing symptoms. When presented with a preschool-aged child who is brought to consultation for behavioral difficulties, dysregulated aggression, and/or unexplained fears, clinicians should evaluate maternal psychological functioning as well as assess and treat the effects of interpersonal violence, which otherwise may be avoided during the consultation.     

ATTACHMENT PERSPECTIVES ON DOMESTIC VIOLENCE AND FAMILY LAW

Lieberman and Zeanah are specialist clinicians, researchers, and prolific publishers in the areas of infant mental health, attachment development in high‐risk environments, and treatment of infant–parent relationship trauma. In this article, Lieberman and Zeanah discuss the impacts of domestic violence on the attachment security and development of infants and children and address a number of implications for the family law context. Conundrums for parenting visitation and living arrangements are considered, together with the need for multidisciplinary, early response and the pivotal role of family courts in directing this response.