Discrimination between sediment and soil samples for forensic purposes using elemental data: an investigation of particle size effects

This paper reports the results of an investigation to quantify variations in elemental concentrations amongst different particle size fractions obtained from a suite of sediment samples collected from the River Avon, UK. Concentrations of 49 elements determined by inductively coupled plasma spectrometry (ICP-AES and ICP-MS) were compared using conventional and multivariate statistical methods in order to assess compositional differences between different size fractions and between different samples. The results showed significant differences between different size fractions and the bulk sediments, but indicated that all of the size fractions considered (<150, 63-150, 20-63 and <20microm) provided an adequate basis on which to identify associations and differences between samples. It was concluded that, while in certain specific circumstances it may be most appropriate to make forensic comparisons based on a very narrowly defined particle size range, for the majority of purposes the <150microm fraction provides the best compromise between sample size requirements and data resolution.     

Gamma Irradiation as a Biological Decontaminant and Its Effect on Common Fingermark Detection Techniques and DNA Profiling

Abstract:  The use of disease-causing organisms and their toxins against the civilian population has defined bioterrorism and opened forensic science up to the challenges of processing contaminated evidence. This study sought to determine the use of gamma irradiation as an effective biological decontaminant and its effect on the recovery of latent fingermarks from both porous and nonporous items. Test items were contaminated with viable spores marked with latent prints and then decontaminated using a cobalt 60 gamma irradiator. Fingermark detection was the focus with standard methods including 1,2-indanedione, ninhydrin, diazafluoren-9-one, and physical developer used during this study. DNA recovery using 20% Chelex extraction and quantitative real-time polymerase chain reaction was also explored. Gamma irradiation proved effective as a bacterial decontaminant with D -values ranging from 458 to 500 Gy for nonporous items and 797–808 Gy for porous ones. The results demonstrated the successful recovery of latent marks and DNA establishing gamma irradiation as a viable decontamination option.     

Preliminary Studies into the Characterization of Chemical Markers of Decomposition for Geoforensics*

Abstract: In this paper, we report the results of our preliminary studies into chemical characterization of the fluids produced during decomposition in the absence of a soil matrix. Pig (Sus domestica) carcasses were used to model the human decomposition process in two separate locations, Western Australia (Perth) and Canada (Oshawa). Analysis involved simple dilution and filtration of the decomposition fluids followed by gas chromatography–mass spectrometry. Several previously unreported compounds were detected in the decomposition fluid samples during the trials, including benzeneacetic acid, benzenepropionic acid, 2‐piperidone, and isocaproic acid. Possible biosynthetic pathways for some of the compounds produced are proposed. Further research trials are required, particularly in the presence of soil matrices.     

The Reflexive Properties of Corporate Governance Codes: The Reception of the ‘Comply‐or‐explain’ Approach in Slovenia

The Slovenian Corporate Governance Code for Public Joint‐Stock Companies was adopted in March 2004. We examine how far the implementation of the Code has resulted in the ‘reflexive’ learning processes which the ‘comply‐or‐explain’ approach to corporate governance aims to bring about. We find that compliance strategies are strikingly uniform across firms in terms of the content of deviations as well as in types of disclosure and explanations for deviations. Moreover, the quality of corporate reporting is low, with effective explanations representing only a small minority of disclosures. Thus there is little evidence that the Code has stimulated organizational learning. We consider the implications of our findings for the development of corporate governance in transition systems and for the comply‐or‐explain approach more generally.     

Development of a searchable major and trace element database for use in forensic soil comparisons

Forensic soil comparisons are normally undertaken on the basis of several physical, chemical and biological properties, but in all cases the interpretation of results is dependent on the availability of relevant contextual information. This paper summarises the results of major and trace element analyses performed using inductively coupled plasma atomic emission spectrometry and inductively coupled plasma-mass spectrometry on the < 150 µm size fraction of 1896 soil samples collected in connection with forensic investigations in England and Wales between 1999 and 2007. A number of new methods are described which facilitate inter-sample comparison. Although the available data do not provide uniform geographical coverage they do provide useful information which can assist police search investigations and they provide valuable contextual information which aids the evidential assessment of soil evidence when used in court. There is considerable scope to improve the database by increasing the geographical coverage and increasing the number of soil attributes which are included.     

Video-sharing website finds safe harbour from copyright infringement

A California federal district court ruled that a video-sharingwebsite was not liable for copyright infringement because itfell within a Digital Millennium Copyright Act (‘DMCA’)safe harbour.     

Lecture recording: a new norm

Classroom recording systems (systems that capture audio or video footage of a taught session) are being adopted in universities globally in part encouraged by studies that suggest that use of recording technology is associated with enhanced student engagement and perceptions of a course. Notwithstanding increased adoption as a result of perceived benefits, approximately only 10% of higher education institutions have adopted comprehensive lecture recording systems. This study considered the benefits and advantages of classroom recording systems. Academic concerns over student attendance and use of recordings are discussed with the implications for teachers, cognisant of the synergistic relationship between teachers, students and their learning.     

Forensic psychiatric inpatients and aggression: An exploration of incidence,prevalence, severity,and interventions by gender

BackgroundPrevious investigations suggest that women judged to be not criminally responsible on account of mental disorder (NCR-MD) differ markedly from their male counterparts in important ways, underscoring the necessity of subsequent study.ObjectiveThe goal of the present study was to inform our understanding of the presenting profile of female forensic psychiatric patients and contrast their risk of inpatient aggression with their male counterparts.MethodThe population of patients assessed and/or treated at a secure Canadian forensic psychiatric hospital were available for study. In total, 527 patients had complete data and were part of intensive retrospective file reviews; inpatient aggression was evaluated using the Overt Aggression Scale.ResultsWomen were no less likely than men to have a violent index offence and to perpetrate inpatient aggression. Examining the range of aggressive behaviours and severity levels did little to increase the relevance of gender to inpatient risk.DiscussionFemale forensic patients represent a highly selected subgroup of women with exceptional clinical and behavioural challenges and associated treatment needs.     

ECJ provides further guidance on the ambit of database right

Following on from the European Court of Justice's ruling on database right in the Directmedia case, the Court has looked in more detail at the protection afforded by database right, and provided further clarification of the meaning of ‘extraction’ and ‘substantial’, particularly in relation to modular databases comprised of several sections. The ECJ's ruling is positive for database owners for the most part, bolstering its previous broad interpretation of the acts of ‘extraction’ that can infringe and considering in more detail other points touched on in the Directmedia, British Horseracing Board and Fixtures Marketing cases. This article discusses the outcome and implications of the ruling.     

Special Issue Introduction: Domestic Politics in Japan and Sino-Japanese Relations

The Sino-Japanese relations have again reached to the lowest point since Koizumi’s rule. Contrary to the conventional literatures which explaining the dynamic relation from the international dimensions, this special issue highlights the different domestic actors in Japanese politics who contribute significantly to the foreign policy-making process, notably regarding Japan’s Chinese policies. While there is a significant rightward shift in domestic politics and a growing discrepancy between central and local level politicians, the quest for discursive power between the opposing camps in the relevant areas will heavily determine future Sino-Japanese relationships.