Characterisation of 0.22 caliber rimfire gunshot residues by time-of-flight secondary ion mass spectrometry (TOF-SIMS): a preliminary study

The application of time-of-flight secondary ion mass spectrometry (TOF-SIMS) for the characterisation of gunshot residue (GSR) from 0.22 caliber rimfire ammunition is reported. Results obtained by TOF-SIMS were compared with conventional scanning electron microscopy (SEM) studies. As could be expected, TOF-SIMS exhibited greater elemental sensitivity than SEM equipped with energy dispersive X-ray detection (SEM-EDX), and was also capable of detecting fragments characteristic of inorganic compounds. This preliminary study indicates that TOF-SIMS offers substantial potential for forensic GSR examinations as a complementary technique to SEM-EDX. In addition TOF-SIMS is applicable to the analysis of individual particles in the typical size range encountered in GSR casework.     

Synthesis by-products from the Wacker oxidation of safrole in methanol using rho-benzoquinone and palladium chloride

This paper reports the identification of a number of by-products, which are produced during the Wacker oxidation of safrole to 3,4-methylenedioxyphenyl-2-propanone (MDP2P) using rho-benzoquinone and palladium chloride when methanol is utilised as the solvent. Also described is the retrieval of these compounds from illicit samples from a clandestine laboratory, which was uncovered in South Australia in September 2003.     

Glass-containing gunshot residue particles: a new type of highly characteristic particle?

In 0.22 caliber rimfire ammunition, the primer often contains lead or lead and barium compounds. As residues from these primers do not contain lead, barium, and antimony, they cannot be uniquely classified as gunshot residue (GSR) under ASTM designation E 1588-95. In many types of 0.22 caliber rimfire ammunition, the cartridge contains a primer sensitized with glass. In this paper we describe a previously unreported type of GSR particle consisting of glass fused with other primer components. As there appear to be few potential environmental or occupational sources of particles composed of lead and barium compounds fused to glass, particularly borosilicate glass, these particles may have high evidential value. Scanning electron microscopy with energy dispersive X-ray detection (SEM-EDX) and time-of-flight secondary ion mass spectrometry (TOF-SIMS) were evaluated for the characterization of glass-containing GSR particles. The occurrence of glass-containing GSR particles was established in the residue from various brands of 0.22 caliber ammunition, and several sub-types were identified.     

Chemical markers from the peracid oxidation of isosafrole

In this work, isomers of 2,4-dimethyl-3,5-bis(3,4-methylenedioxyphenyl)tetrahydrofuran (11) are presented as chemical markers formed during the peracid oxidation of isosafrole. The stereochemical configurations of the major and next most abundant diastereoisomer are presented. Also described is the detection of isomers of (11) in samples from a clandestine laboratory uncovered in South Australia in February 2004.     

Evaluating the ‘logical framework approach’ towards learning‐oriented development evaluation

The logical framework approach has spread enormously, including increasingly to stages of review and evaluation. Yet it has had little systematic evaluation itself. Survey of available materials indicates several recurrent failings, some less easily countered than others. In particular: focus on achievement of intended effects by intended routes makes logframes a very limiting tool in evaluation; an assumption of consensual project objectives often becomes problematic in public and inter‐organizational projects; and automatic choice of an audit form of accountability as the priority in evaluations can be at the expense of evaluation as learning. Copyright © 2000 John Wiley & Sons, Ltd.     

Moving Development and Security Narratives a Step Further: Human Security in the Human Development Reports

During the last 20 years, the idea of human security has been spreading globally and locally, albeit unevenly. One factor in this growth has been the role of Human Development Reports as sources of alternative narratives to understand social problems and progress. This paper describes how National and Regional Human Development Reports have generated a rich and analytically fruitful set of approaches to examining and responding to contextual threats, following human security principles – for people-centred, comprehensive, context-specific and prevention-oriented analysis and exploring basic security questions. However, this richness has not fed back yet into the global apex of Human Development Reports and related work, reflecting a disconnection between levels of analysis that hinders the transformation of development and security narratives.     

Les échevins et la formulation des politiques: Note méthodologique

Sommaire. Cet article examine la question du rǒle des échevins dans la formulation des politiques municipales, tout particulièrement les aspects méthodolo-giques de la question. Dans une première section, nous démontrons que la plupart des études qui ont analysé le rǒle des échevins n'ont pas réussi à ex-pliquer l'output municipal. L'échec s'explique par le fait que ces études privi-légient à peu près exclusivement les attitudes des échevins et n'accordent que peu de place aux comportements et au contexte objectif et concret dans lequel les échevins travaillent. Dans une deuxième section nous démontrons, à partir du cas de Hull, comment une étude des conditions concrètes de travail des échevins peut nous éclairer sur la formation des politiques municipales. Cette etude des ‘ faits matériels » du monde des échevins souligne l'importance des administrateurs municipaux. Les décisions du Conseil municipal ne relevent que très peu de considérations abstraites et ces décisions sont prises dans un cadre donné, un cadre en bonne partie façonné par les administrateurs municipaux. En somme, la principale conclusion qui nous semble émerger de l'étude, c'est l'importance, pour bien saisir le rǒle de l'échevin dans la formulation des politiques, de situer ce rǒle dans sa pratique quotidienne. Abstract. This article examines the question of the role of municipal councillors in the formulation of public policy, with particular emphasis on the methodological dimension of this question. In a first section the authors show that most of the studies that have examined the role of municipal councillors have not succeeded in explaining the municipality's policy output. This failure can be explained by the fact that these studies look principally at the attitudes of the councillors and give very little attention to behaviour or to the real environment in which the councillors work. In a second section we attempt to show, based on the example of Hull, how a study of the concrete working conditions of municipal councillors can illuminate the process of policy formulation. This study of the councillors' ‘real world’ illustrates the importance of the municipal administrators. Council decisions are not taken in the abstract, they emerge from a specific context or framework and this framework is largely structured by the municipal administrators. The major conclusion that emerges from the study is the importance, in order to understand the role of municipal councillors in policy-making, of situating this role in the context of the day-to-day work of the councillors.