Evaluation of preliminary isotopic analysis (13C and 15N) of explosives A likelihood ratio approach to assess the links between semtex samples

Currently, the use of isotopic ratio as corroborative evidence in criminal trials is explored. Beyond the analytical challenges that have been reported elsewhere, the crucial issue of the interpretation of analytical results in a fair and balanced way remains poorly documented. The aim of this paper is to propose a likelihood ratio approach for the evaluation of stable isotope data acquired from semtex samples. It will also lead to recommendations in relation to the acquisition of normalised international data.     

Toxicologic analysis in cases of possible sudden infant death syndrome: a worthwhile exercise?

The diagnosis of sudden infant death syndrome (SIDS) is one of exclusion. At the Department of Forensic Medicine, Westmead Hospital, toxicologic analysis is performed as part of the postmortem examination of all apparent SIDS deaths. The results for the 5-year period January 1, 1994, to December 31, 1999, were audited to determine whether such routine testing was worthwhile. During this time there were 117 cases with a history consistent with SIDS. Drugs were detected in 19 (16%) of these cases. In 1 case, death was attributed to the finding of methadone. The presence of methadone was regarded as a possible contributing factor to death in a further 2 cases. The presence of possible methadone toxicity had not been expected from the history given before the examination in these 3 cases. In 114 cases there was a suitable sample for alcohol testing; in no case was alcohol detected. In 13 cases the postmortem examination revealed an anatomic cause of death (including 3 cases consistent with whiplash/shaken baby/impact head injury), which excluded a diagnosis of SIDS. In conclusion, routine toxicologic testing in all possible cases of SIDS death supplements the postmortem examination in excluding cases of non-SIDS.     

Political research and practitioner approaches: a review of the research methods used in voting behaviour research

Quantitative research has been the dominant methodological approach used to study voting behaviour. There is an emerging recognition, however, that there are alternative ways of attempting to understand how voters decide. The academic preoccupation with measurement, reliability, validity and generalisability may obscure some of the findings that are uncovered by practitioners using qualitative research. Practitioners of politics, both in the USA and the UK, tend to utilise both methods when formulating policy and exploring voter attitudes towards these policies. This paper will review the arguments for each tradition and examine the apparent divergence of practitioner and academic political research. Finally, it will look at how both positivist and interpretivist methods can be utilised to complement each other when attempting to build a picture of voting behaviour. Copyright © 2004 Henry Stewart Publications     

Black women in American policing: An advancement display

This article is a display of the advancement of black women in American municipal policing. Outlined are research findings which denote the current status of black female officers through a national overview and analysis of their numbers and assignment and rank distributions in relation to geographic region and city population size. The supervisory and command representations of black women among the sworn personnel of five major municipal police agencies are examined.     

Human genetic research databases and biobanks: towards uniform terminology and Australian best practice

This article examines international best practice for the establishment, maintenance and use of human genetic research databases (HGRDs), particularly focusing on large-scale population biobanks, and considers the measures that should be taken in Australia to comply with this best practice. These HGRDs play a pivotal role in basic research aimed at understanding the basis of human disease at the genetic level, and applied research aimed at putting that basic knowledge into practical application. In particular, the large-scale biobanks are vital research tools in the drive to uncover the causes and consequences of human health and disease. Biobanks are being established at regional, national and international levels throughout the world. Although their governance structures are uniformly complex, some best practices are emerging with regard to consent (particularly consent to future research and withdrawal of consent), privacy and data protection and intellectual property ownership and access. Best practices with regard to benefit-sharing are emerging much more slowly. This article reviews these international best practices with the aim of providing guidance for the development of appropriate regulatory structures in Australia.     

Divergent genetic strata in five Bahamian islands

Based on historical records, the genetic landscape of the Bahamian archipelago is presumed to be complex and to exhibit island-specific characteristics, yet the genetic composition of the island chain, which could corroborate or refute these past accounts, remains poorly defined. As such, the current investigation was undertaken to genetically characterize 5 Bahamian populations representing the Northwest (Grand Bahama and Abaco) and Central (Eleuthera, Exuma and Long Island) Bahamas across the 15 autosomal Identifiler loci routinely employed in forensic analyses. Altogether, our findings suggest that Bahamians are a genetically heterogeneous group, with each island sampled receiving differential contributions from African, European, East Asian and Native American sources. Even though the strongest genetic signal in all 5 collections emanates from continental Africa, inter-island differentiation is noted in both the Structure and admixture analyses. The presence of alleles not in common among the 5 insular populations also signals genetic heterogeneity among the islands of the archipelago. This is especially the case when considering the Long Island population, which exhibits statistically significant genetic differences in relation to the other Bahamian collections and the New World groups of African descent (Afro-American and Afro-Caribbean) in the G-test pair-wise comparisons, even after application of the Bonferroni adjustment.     

End States,Resource Allocation and NATO Strategy in Afghanistan

This article compares Canadian and allied goals in Afghanistan during the military campaign against Al Qaeda and the Taliban in 2001–2002 with the objectives of the NATO-led International Security Assistance Force (ISAF) in subsequent years. The authors conclude that the limited aims in the initial campaign have been replaced by a set of more ambitious objectives. After considering force levels, resources committed to Afghanistan and the exigencies of the security situation, the authors conclude that Canadian and allied means have not been adequate to the ends sought. Despite significant progress in political reform and socio-economic improvements in many regions of the country, as of the end of 2007, allied strategy in Afghanistan may not viable without considerable increases in resources.     

Routine activities of delinquent and non-delinquent victims of violent crime

The link between criminal victimization and offending has become increasingly well documented in recent years. Unfortunately, the empirical and theoretical enmeshment of these variables makes it difficult to determine the effect of specific activities purely on victimization. This paper provides an examination of the effect of engaging in specific risky activities on the violent victimization experiences of delinquent and non-delinquent youth. Our results show that there are some modest differences in the effects of risky behaviors on the likelihood of violent victimization for delinquents and non-delinquents.