Can analysis of a small clod of soil help to solve a murder case?

Soil forensics utilizes extensive soil information to answer legal questions and test hypotheses. The main difficulty often is the determination of different variables from a small amount of soil sample collected on the suspect. We developed a sequential mineralogical and chemical analyses to assess a limited quantity of soil vestiges (0.5 g) from a suspect's vehicle (adhered to the outside rear-view mirror and to the left front fender) involved in a murder case and compared them with the surface samples found at the victim's body disposal site at the Graciosa Road, Paraná State, Brazil. All results affirm that the suspect’s vehicle could have been in contact with the edge of the Graciosa Road, approximately the place where the victim’s body was located. As a result of the soil analysis and comparison, the results support the likely contact of the suspect’s vehicle with the crime scene.     

Comparative study of Greulich and Pyle Atlas and Maturos 4.0 program for age estimation in a Portuguese sample

Age estimation of living individuals has become one of the big issues of forensic anthropology. The increase of children and adolescents with no valid proof of their chronological age is a legal concern to many countries, especially in situations of illegal immigration, sub adult delinquency and juvenile work. For this purpose, the use of radiological methods for evaluation of skeletal maturation is particularly useful. In this study we compare the two of the most common methods applied in age estimation by hand/wrist radiographs: the Radiographic Atlas of Skeletal Development of the Hand and Wrist made by Greulich and Pyle (GP), 1959,and the Sempé method developed for computer--Maturos 4.0 (MT) program. These methods were applied to a sample of 230 radiographs of the hand and wrist from Portuguese children and adolescents of known sex age and age, aged between 12 and 20 years, who performed medical examination at the University of Coimbra Hospitals during 2005. The methods achieved different performances, depending on the age group. Between 12 and 15 years the bone age with the MT program is closer to the chronological age, whereas in older ages the GP Atlas method is more trustworthy. At the ages with legal consequences in Portugal (16 and 18 years) the GP Atlas method is most accurate, namely to decide whether an individual is younger or older than 18 years. Around 16 years old, although there are doubts in relation to the accuracy of both methods, GP Atlas seems to perform better.     

Chemical enhancement of footwear impressions in blood on fabric – Part 1: Protein stains

A range of protein stains were utilised for the enhancement of footwear impressions on a variety of fabric types of different colours with blood as a contaminant. A semi-automated stamping device was used to deliver test impressions at a set force to minimise the variability between impressions; multiple impressions were produced and enhanced by each reagent to determine the repeatability of the enhancement. Results indicated that while most protein stains used in this study successfully enhanced impressions in blood on light coloured fabrics, background staining caused interference on natural fabrics. Enhancement on dark coloured fabrics was only achieved using fluorescent protein stains, as non-fluorescent protein stains provided poor contrast.A further comparison was performed with commercially available protein staining solutions and solutions prepared within the laboratory from the appropriate chemicals. Both solutions performed equally well, though it is recommended to use freshly prepared solutions whenever possible.     

Chemical enhancement of footwear impressions in blood deposited on fabric — Evaluating the use of alginate casting materials followed by chemical enhancement

Most footwear marks made in blood on a surface such as fabric tend to be enhanced in situ rather than physically recovered using a lifting technique prior to enhancement. This work reports on the use of an alginate material to recover the impressed footwear marks made in blood and deposited on a range of fabric types and colours. The lifted marks were then enhanced using acid black 1 and leuco crystal violet with excellent results.This presents a new method for the lifting and recovery of blood impressions in situ from crime scene followed by subsequent mark enhancement of the lifted impression.     

Further Validation of the Test of Memory Malingering (TOMM) Trial 1 Performance Validity Index: Examination of False Positives and Convergent Validity

Assessment of performance validity is an essential part of a neuropsychological evaluation, with the inclusion of two or more performance validity tests (PVTs) becoming routine practice. Considering the time to administer multiple tests, there has been some support for use of the Test of Memory Malingering (TOMM) Trial 1 (T1) as an independent, “one and done” PVT. Notably, cutoffs for TOMM T1 need further validation, with an emphasis on minimizing false-positive classifications among those with bona fide cognitive impairment. In a clinically referred sample of 127 veterans, this study examined the role of cognitive impairment in TOMM performance and the utility of a TOMM T1 as an independent PVT. Examinees were administered the TOMM and three additional PVTs as part of a comprehensive neuropsychological battery. Sixty-eight percent of examinees were classified valid (35% of valid examinees were cognitively impaired). TOMM T1?≤?40 had excellent observed sensitivity (83%) and specificity (93%) overall, with minimal false-positive classification. TOMM T1 was also significantly correlated and concordant with other memory-based PVTs. Given score ranges and failure rates for TOMM T1?≤?40 among those with neurological/neurocognitive conditions, scores in the 37–40 range may merit administration of additional TOMM trials to maximize accuracy in identifying valid-cognitively impaired versus noncredible performance. Otherwise, an abbreviated TOMM administration (i.e., only T1) using a cutoff of ≤?40—in conjunction with one or more additional PVTs—may be sufficient for detecting noncredible/invalid test performance in the absence of known or suspected neurological/neurocognitive disorders.     

Political Ideology,Public Policy and Human Development in India: Explaining the Gap Between Gujarat and Tamil Nadu

Abstract

Four decades ago the Indian states of Gujarat and Tamil Nadu had identical scores on the human development index. Both states have since experienced similar rates of economic growth and Gujarat has received more foreign investment, but Tamil Nadu has witnessed much stronger advances in human development. What explains this divergence? Through comparative historical, statistical and public policy analysis and interviews, we conclude that the implementation of government policies as a manifestation of political ideology and the quality of public administration have played a defining role in explaining Gujarat’s more lopsided and Tamil Nadu’s more balanced human development trajectories. Our findings suggest that a more egalitarian ideology and higher quality of public administration have been crucial to Tamil Nadu’s success in simultaneously improving human and economic development.     

China's ‘win-win’ cooperation: Unpacking the impact of infrastructure-for-resources deals in Africa

This paper discusses China's use of infrastructure-for-resources loans in Africa as a win–win economic cooperation tool. This formula, offering generous loans for infrastructure in exchange for resource access, came into being largely as a default cooperation tool, inspired by China's own domestic experience, its competitive advantages and Africa's receptivity to this kind of barter deal. Embodying the principle of mutual benefit, China has consistently combined the extension of financial assistance for infrastructure construction in Africa with the expansion of Chinese business interests and the pursuit of resource security goals. The analysis focuses on whether this instrument is actually promoting African development or fuelling instead China's economic growth at the expense of African economies. The author argues that the impact has been mixed. Although there are some meaningful positive signs, many challenges persist, and as such the long-term developmental impact of this particular tool remains uncertain. The responsibility to ensure a positive outcome rests, however, on the African side as much as on China.     

Transforming Fair Use Online: The Ninth Circuit's Productive-Use Analysis of Visual Search Engines

Courts have increasingly looked to the concept of “transformative use” to determine whether the use of a copyrighted work is protected under the fair use doctrine. Judge Pierre Leval's definition of transformative use, adopted by the Supreme Court of the United States in its 1994 opinion in Campbell v. Acuff-Rose Music, Inc., requires that a transformative use must (1) be socially beneficial, (2) be used in a different way or purpose from the original, and (3) add value to the original by using it as raw material to create something new. This article examines the fair use analysis undertaken by the United States Court of Appeals for the Ninth Circuit in two recent cases involving visual search engines and concludes that the court's test of transformative use ignored the language and the meaning of the Campbell definition and instead equated a finding of a different purpose with a finding of a transformative use. This departure from traditional transformative use analysis, if generally adopted by the court, would represent a significant and potentially troubling doctrinal shift in fair use analysis.     

Interdisciplinary,cross-sector collaboration in the US Intelligence Community: lessons learned from past and present efforts

ABSTRACT

How does one design and sustain interdisciplinary, cross-sector collaboration to improve intelligence results for twenty-first century security threats? This paper will analyse five past and present initiatives designed to create interdisciplinary, cross-sectoral collaboration within different agencies of the US Intelligence Community (IC). We will discuss key features of each effort, their successes and challenges, identify common themes and, propose which collaborative model might be most advantageous for a particular type of project based on project constraints. In so doing, we provide direction for IC leaders seeking to improve academia–industry–intelligence partnerships for future planning on intelligence-funded collaborations.