A novel histological technique for distinguishing between epithelial cells in forensic casework

There are a number of forensic cases in which the identification of the epithelial cell type from which DNA originated would provide important probative evidence. This study aimed to develop a technique using histological staining of fixed cells to distinguish between skin, buccal and vaginal epithelium. First, 11 different stains were screened on formalin-fixed, wax-embedded cells from five women. Samples were analysed qualitatively by examining staining patterns (colour) and morphology (absence or presence of nuclei). Three of the staining methods – Dane's, Csaba's and Ayoub-Shklar – were successful in distinguishing skin epithelial cells from buccal and vaginal. Second, cells were smeared directly onto slides, fixed with one of five fixatives and stained with one of the three stains mentioned above. Methanol fixation, coupled with the Dane's staining method, specific to keratin, was the only technique that distinguished between all three cell types. Skin cells stained magenta, red and orange and lacked nuclei; buccal cells stained predominantly orange–pink with red nuclei; while vaginal cells stained bright orange with orange nuclei and a blue extracellular hue. This staining pattern in vaginal cells was consistent in samples collected from 50 women aged between 18 and 67. Identification of cell type from unlabelled micrographs by 10 trained observers showed a mean success rate of 95%. The results of this study demonstrate that histological staining may provide forensic scientists with a technique for distinguishing between skin, buccal and vaginal epithelial cells and thus would enable more conclusive analyses when investigating sexual assault cases.     

Invitation or Ambush: The Scope of an Insured's Duty to Cooperate and the Slippery Slope of Information Sharing

The policyholder's “duty to cooperate” is built into every liability insurance policy, either expressly or through the application of a state's common law. The scope of an insured's duty to cooperate is often difficult to discern, however, in terms of the type and extent of information that the insured should provide as part of the insurer's investigation of the underlying matter for which coverage is being sought. Traditionally, the duty to cooperate was intended to encourage information sharing to allow the insurer to afford the policyholder a comprehensive, informed defense to the underlying claimant's allegations. This article examines the scope of the duty to cooperate and how that duty impacts the insured's obligation to share some reasonable amount of information as part of the insurer's investigation and defense of the underlying claim, noting potential pitfalls and risks that may arise from information sharing.     

Analytical pyrolysis of Streptococcus saliivarius as and aid to identification in bite-mark investigation

The use of pyrolysis mass spectrometry (Py-MS) and statistical analysis of mass spectra is introduced as a method for “finger-printing” strains of Streptococcus salivarius. The objective is to provide correlative evidence regarding the identity of suspects in cases of assault or rape involving bite-marks. The results of the analysis of isolates from two individuals are presented, illustrating the differentiation of S. salivarius at strain level according to the origin of the isolate.     

British Imperialism in Fiji: A Model for the Semiotics of Cultural Identity

The history and effects of British imperialism in Fiji created a model for analyzing the semiotics of cultural identity. Following the acquisition of land in Fiji, the British recruited impoverished people from India and relocated them as indentured servants to do work on sugar cane plantations that natives refused to do. When Fiji became independent nearly 100?years later, the island nation had nearly equal populations of native Fijians and people of Indian decent. Fiji experienced three military coupes between 1987 and 2000 while the two ethnic and culturally distinct groups competed for jobs and political power. As a small, island nation, identity-based communication in Fiji represents a microcosm of other more complex multicultural societies. This study examines the semiotics of cultural identity among the people of Fiji.     

Students and the police in Ghana: mixed feelings

This study examines university students’ perceptions of the Ghana police service in contrast with general population studies that explain citizens’ attitudes toward the police. Two research questions guided this study: (1) What are university students’ perceptions of the police? and (2) What factors influence university students’ perceptions of the police? Using data collected from one large university in Ghana between the months of December 2012 and February 2013, the study found several intriguing findings. First, students have moderate trust in the Ghana police. Second, students critically evaluated police procedural fairness and effectiveness. Multivariate regression models revealed that vicarious experiences of police corruption, marital status, level of education, and ethnicity predicted students’ trust in the police as well as influenced their perceptions of fairness and effectiveness. Policy implications of the findings are discussed.     

Are ‘pseudonymised’ data always personal data? Implications of the GDPR for administrative data research in the UK

There has naturally been a good deal of discussion of the forthcoming General Data Protection Regulation. One issue of interest to all data controllers, and of particular concern for researchers, is whether the GDPR expands the scope of personal data through the introduction of the term ‘pseudonymisation’ in Article 4(5). If all data which have been ‘pseudonymised’ in the conventional sense of the word (e.g. key-coded) are to be treated as personal data, this would have serious implications for research. Administrative data research, which is carried out on data routinely collected and held by public authorities, would be particularly affected as the sharing of de-identified data could constitute the unconsented disclosure of identifiable information.Instead, however, we argue that the definition of pseudonymisation in Article 4(5) GDPR will not expand the category of personal data, and that there is no intention that it should do so. The definition of pseudonymisation under the GDPR is not intended to determine whether data are personal data; indeed it is clear that all data falling within this definition are personal data. Rather, it is Recital 26 and its requirement of a ‘means reasonably likely to be used’ which remains the relevant test as to whether data are personal. This leaves open the possibility that data which have been ‘pseudonymised’ in the conventional sense of key-coding can still be rendered anonymous. There may also be circumstances in which data which have undergone pseudonymisation within one organisation could be anonymous for a third party. We explain how, with reference to the data environment factors as set out in the UK Anonymisation Network's Anonymisation Decision-Making Framework.