A Molecular Method to Correlate Bloodstains with Wound Site for Crime Scene Reconstruction

Bloodstain pattern analysis to determine the wound‐of‐origin of bloodstains is problematic with nonspecific patterns. In this proof‐of‐concept study, the authors examined a molecular approach to correlate bloodstains with injuries using the rat as a model. Specifically, investigations were conducted on the rat brain marker, rno‐miR‐124‐3p, with the QIAGEN miScript System and real‐time PCR analysis. Rno‐miR‐124‐3p was detected in brain homogenates diluted 100,000 times; in 3‐week‐old, room temperature stored, simulated brain–blood stains; and in bloodstains from head gunshot wounds collected with swabs and subsequently frozen for 9–18 months; however, rno‐miR‐124‐3p was not detected in whole blood. Proof‐of‐principle was demonstrated by the ability to distinguish bloodstains from a gunshot wound to the head versus bloodstains from a gunshot wound to the chest, by the testing of otherwise identical bloodstains from the two patterns for the presence of the marker. The results suggest a viable approach to a longstanding problem in casework.     

In Vitro Effects of Household Products on Calliphoridae Larvae Development: Implication for Forensic Entomology

Several parameters can delay the first arrival of flies on a corpse and the subsequent development of the larvae. This study focuses on the development of Lucilia sericata (Diptera: Calliphoridae) (Meigen, 1826) on household chemical‐contaminated substrates. bleach, perfume, hydrochloric acid, caustic soda, insecticide, mosquito repellent, and gasoline in quantities consistent with an amount that could possibly be spilled on a corpse were mixed with beef liver to simulate contaminated fleshes. Larvae were bred at 25°C on these media until emergence. Four developmental parameters were followed: survival rates, development times, sex ratios, and adult sizes. Hydrochloric acid, insecticide, and gasoline killed all larvae. In low quantities, caustic soda and mosquito repellent increased the development time and decreased the adult size. However, high quantities of these chemicals killed all larvae. Lastly, bleach and perfume did not affect the survival rate and barely impacted the development time or adult size. These results demonstrate common household products spilled on a corpse can strongly affect the development of Calliphoridae larvae. The effects of such products should be considered in forensic entomology cases.     

Beyond (and Within) City Limits: Climate Policy in an Intergovernmental System

This analysis explores the role of city‐level and state‐level variables to explain why some cities make more progress on climate‐related policy implementation than others. Using multilevel modeling, we find little support for the influence of state factors on local government leadership among the 812 cities in the dataset, but local government institutional and community variables are strongly associated with climate policy initiatives. We argue for a rethinking of the notion of the limited and constrained city and suggest that, in the realm of climate protection and environmental policy, cities are leading a bottom‐up federalism. Moreover, where some political analysts and scholars have argued that climate protection and environmental policies may not be economically rational for cities to pursue, we theorize that cities are acting locally to further their self‐interest in an increasingly global economy.     

Exporting ‘active citizenship’: foreign support for citizenship education in the Arab world

What explains the rise in support for active citizenship programs in the Arab region? How has active citizenship been envisioned and taught with support by foreign states? How do participants understand the usefulness and impact of such programs? In this paper, we examine the contexts in which citizenship programs that embody the political aspirations of foreign states, are implemented. Embedded in local political realities, participants in these programs routinely question the ef?cacy and applicability of training modules focused on active citizenship and civic engagement. We argue that the proliferation of active citizenship programs for civil society organizations in practice serves to both bolster state legitimacy and discourage community leaders and activists from expressing political dissent. By submerging con?icting values, practices, and perspectives while encouraging civic participation based on conformity rather than dissent, active citizenship programs risk fostering a depoliticized civil society that is detached from the local political context.     

Information, Litigation, and Common Law Evolution

It is common in the legal academy to describe judicial decisiontrends leading to new common law rules as resulting from consciousjudicial effort. Evolutionary models of litigation, in contrast,treat common law as resulting from pressure applied by litigants.One apparent difficulty in the theory of litigation is explaininghow trends in judicial decisions favoring one litigant, andbiasing the legal standard, could occur. This article presentsa model in which an apparent bias in the legal standard canoccur in the absence of any effort toward this end on the partof judges. Trends can develop favoring the better-informed litigantwhose case is also meritorious. Although the model does notsuggest an unambiguous trend toward efficient legal rules, itdoes show how private information from litigants becomes embodiedin common law, an important part of the theory of efficientlegal rules.     

Thermal shrinkage of small single acrylic fibers — A technique of forensic potential

Single fibers less than 1 mm long of nine types of acrylic fibers were thermally shrunk from 85°C to 285°C by hot stage optical microscopy. A surprisingly wide variety of behavior was observed. The temperature for the onset of shrinkage ranged from 105°C to 190°C; total contraction ranged from 2% to 64%; and some fibers contracted rather steadily, whereas others contracted abruptly. Reproducibility of shrinkage was excellent for most monocomponent fibers but was less reproducible for bicomponent fibers. In general, it was found that the technique may be used to discriminate among fiber types within a single fiber generic class using submicrogram sized samples.     

Science in the Courtroom: Vital to Best Interests and Reasonable Efforts

This essay was adapted from a speech presented by the author on February 12, 2008 at a Colloquium entitled “What's Best for Children? How Judges Use Neuroscience to Break the Cycle of Child Maltreatment.” The colloquium was sponsored by the Harvard Center on the Developing Child and held at Harvard Law School. It focuses on the wealth of knowledge that has been discovered about infant and child development and the importance of incorporating that knowledge into judicial decision making in child maltreatment cases.     

Name Recognition and Candidate Support

The mass media devote a great deal of attention to high‐profile elections, but in American political life such elections are the exception, not the rule. The majority of electoral contests feature candidates who are relative unknowns. In such situations, does name recognition breed contempt, indifference, or affection? Existing work presents modest theory and mixed evidence. Using three laboratory experiments, we provide conclusive evidence that name recognition can affect candidate support, and we offer strong evidence that a key mechanism underlying this relationship is inferences about candidate viability. We further show that the name‐recognition effect dissipates in the face of a more germane cue, incumbency. We conclude with a field study that demonstrates the robustness of the name‐recognition effect to a real‐world political context, that of yard signs and a county election.