Y-chromosome STR-haplotype typing in El Salvador

Eight Y-chromosome STRs were investigated in a male population sample from El Salvador. Complete Y-chromosomal STRs haplotypes were obtained in 121 individuals, among which 107 different haplotypes were observed. The two most common haplotypes were shared by approximately 4% of the sample, while 100 haplotypes were unique. The gene diversity was 0.9883 and the discrimination capacity was 0.8926. The combined Y-chromosome STR polymorphisms provide a powerful discrimination tool for routine forensic applications.     

Problems in expert deception detection and the risk of false confessions: no proof to the contrary in Levine et al. (2014)

Lie-detection research has shown that observers who rely on nonverbal cues or on verbal cues correctly classify on average 54% of truth tellers and liars. In addition, over the years, countless numbers of innocent people have made false confessions and, in analysing the problem, researchers have implicated both a suspect's vulnerability and the persuasive influence of certain police interrogation tactics. Levine et al. (2014) aim to contribute to these vast bodies of literature by reporting two studies purportedly showing that expert interviewers – when they are permitted to question interviewees – can achieve almost perfect accuracy without eliciting false confessions. We argue that theoretical and methodological aspects of these studies undermine the reliability and validity of the data reported, that as a result the studies do not contribute to the scientific literatures on lie detection and false confessions in any meaningful way, and that the results are dangerously misleading.     

Interbranch Negotiations over Policies with Multiple Outcomes

Whereas presidents represent the entire nation, members of Congress serve districts and states. Consequently, presidents and members of Congress often disagree not only about the merits of different policies but also about the criteria used to assess them. To investigate the relevance of jurisdictional?and by extension criterial?differences for policymaking, we revisit classic models of bargaining under uncertainty. Rather than define uncertainty about the mapping of one policy into one outcome, as all previous scholars have done, we allow for every policy to generate two politically relevant outcomes, one local and another national. We then identify equilibria in which the president's utility is increasing in the value that a representative legislator assigns to national outcomes. As an application of this theory, we analyze budgetary politics in war and peace. We find that during periods of war, when members of Congress assign greater importance to the very same national outcomes that preoccupy presidents, congressional appropriations more closely reflect presidential proposals.     

The hares,the hounds and the African National Congress: on joining the Third World in post-apartheid South Africa

The utility of framing questions of global inequality in relation to a ‘First World’ and a ‘Third World’, a North and a South, or developed countries and developing (or underdeveloped) countries, has been much debated since the end of the Cold War. This article addresses the issue of the perceived weaknesses and possible continued strengths of the notion of the ‘Third World’ in general terms, and then grounds such a discussion through an analysis of the way that the African National Congress (anc) government in post-apartheid South Africa has approached the question of global inequality. Since its election in 1994, and more particularly since Thabo Mbeki succeeded Nelson Mandela as president, the anc has presented itself as having an especially important leadership role on behalf of the Third World. The profound contradictions inherent in the anc's effort both to retain its Third Worldist credentials and to present itself as a reliable client to the Bretton Woods institutions and foreign investors provides insights into how to design alternative strategies for overcoming world-wide poverty, strategies which might be more effective than those chosen by the anc. Since the anc was elected to government in 1994 it has pursued a brand of deeply compromised quasi-reformism, analysed here, that serves primarily to deflect consideration away from the options presented by other, much more meaningfully radical international and South African labour organisations, environmental groups and social movements. At the present juncture a range of increasingly well-organised grassroots movements in South Africa find that they have no choice but to mobilise in active resistance to the bankrupt policies of the anc. The increasing significance of these efforts points to the possibility that they might eventually be able to push South Africa—either through a transformation of the anc itself or through the creation of some new, potentially hegemonic, political project in that country—back into the ranks of those governments and groups that seek to use innovative and appropriately revolutionary approaches to challenge the geographical, racial and class-based hierarchies of global inequality.     

The Effect of Decomposition on the Efficacy of Biometrics for Positive Identification

Biometrics, unique measurable physiological and behavioral characteristics, are used to identify individuals in a variety of scenarios, including forensic investigations. However, data on the longevity of these indicators are incomplete. This study demonstrated that iris and fingerprint biometric data can be obtained up to four days postmortem in warmer seasons and 50 + days in the winter. It has been generally believed, but never studied, that iris recognition is only obtainable within the first 24 hours after death. However, this study showed that they remain viable for longer (2–34 days) depending upon the environmental conditions. Temperature, precipitation, insects, and scavenger activity were the primary factors affecting the retention of biometrics in decomposing human remains. While this study is an initial step in determining the utility of physiological biometrics across postmortem time, biometric research has the potential to make important contributions to human identification and the law enforcement, military, and medicolegal communities.     

Can impact assessments tame legislative drift? Event history analysis of modifications of laws across Europe

Laws should endure and change only if assumed benefits don't materialize over time. Yet frequent modifications of laws shortly after their enactment distort this compromise between stability and change. While, Impact Assessments (IAs) are designed to improve the quality of legislation, we know little about IAs' impact on legal stability post-enactment. We fill this gap by analysing whether the ex-ante application of IAs influences the incidence and frequency of legal modifications. The analysis is based on a complete dataset of more than 2500 laws in France, Hungary, Italy, and the UK between 2006 and 2012. We apply a comparative event history analysis to account for both first and subsequent modifications. We find across-the-board that IAs are associated with legal stability. IAs are predicted to have the largest effect when political power changes both in terms of seat shares and party ideology, suggesting that IAs can, to some degree, tame legislative drift.     

Déjà vu all over again: Elliott's critique of eyewitness experts

Northwestern University.     

DNA commission of the International Society of Forensic Genetics: Recommendations on the interpretation of mixtures

The DNA commission of the International Society of Forensic Genetics (ISFG) was convened at the 21st congress of the International Society for Forensic Genetics held between 13 and 17 September in the Azores, Portugal. The purpose of the group was to agree on guidelines to encourage best practice that can be universally applied to assist with mixture interpretation. In addition the commission was tasked to provide guidance on low copy number (LCN) reporting. Our discussions have highlighted a significant need for continuing education and research into this area. We have attempted to present a consensus from experts but to be practical we do not claim to have conveyed a clear vision in every respect in this difficult subject. For this reason, we propose to allow a period of time for feedback and reflection by the scientific community. Then the DNA commission will meet again to consider further recommendations.     

Opinion writing and acclimation effect

The area of judicial research previously referred to as the freshman effect has generated a substantial amount of interest among Supreme Court scholars. Until recently, however, efforts to establish the existence of this effect have met with mixed success. Hagle (1993a) contends that the mixed results of previous freshman or acclimation effect studies are primarily due to the use of the behavior of the experienced justices as a baseline to measure the behavior of the new justice. Given normal variations in the justices' behavior, using the behavior of experienced justices to determine whether a new justice experienced acclimation effects may lead to a false conclusion. In this study we examine the opinion writing behavior of 24 justices who joined the Court from the 1943 through the 1993 Terms. While controlling for the number of cases, we use each justice's own later opinion writing behavior in each of two control periods as a baseline against which to judge whether that justice experienced an acclimation effect in his or her first-term opinion writing. We also compare the opinion writing behavior of Rehnquist and the other three Chief Justices with that of the Associate Justices. Our results indicate that a substantial number of the justices (67%) manifest significant acclimation effects in their opinion writing for one or both of the two control periods. Our results also show a significant difference in Rehnquist's opinion writing behavior as he moved from Associate Justice to Chief Justice and a substantial difference between the opinion writing behavior of the Chief Justices as compared to the Associate Justices.