A Preliminary Study on Vacuum Metal Deposition as a Standalone Method for Enhancement of Fingermarks on Ballistic Brass Materials

In order to assess the efficacy of vacuum metal deposition (VMD) as a technique to develop fingermarks on ballistic metallic surfaces, a preliminary study using six donors (three male & three female) was conducted. Using a sequential metal deposition process, two metal combinations were studied—gold/zinc and silver/zinc. Results indicate the potential of this technique, by developing identifiable fingermarks on brass metal disks aged from a few days up to more than a month old. As the development of fingermarks on fired (brass) cartridge cases is an area of interest, a further study was conducted where a total of 20 fingermarks were deposited on cases. After firing, second level fingermark characteristics were successfully observed on cartridge cases highlighting its potential as a fingermark enhancement method for ballistic brass materials. Further work is required to fully evaluate the VMD process and its reliability as a fingermark enhancing method on ballistic surfaces.     

LGB and Questioning Students in Schools: The Moderating Effects of Homophobic Bullying and School Climate on Negative Outcomes

Lesbian, gay, and bisexual students (LGB) and those questioning their sexual orientation are often at great risk for negative outcomes like depression, suicidality, drug use, and school difficulties (Elliot and Kilpatrick, How to Stop Bullying, A KIDSCAPE Guide to Training, 1994; Mufoz-Plaza et al., High Sch J 85:52–63, 2002; Treadway and Yoakam, J School Health 62(7):352–357, 1992). This study examined how school contextual factors such as homophobic victimization and school climate influence negative outcomes in LGB and questioning middle school students. Participants were 7,376 7th and 8th grade students from a large Midwestern county (50.7% Female, 72.7% White, 7.7% Biracial, 6.9% Black, 5.2% Asian, 3.7% Hispanic, and 2.2% reported “other”). LGB and sexually questioning youth were more likely to report high levels of bullying, homophobic victimization, and various negative outcomes than heterosexual youth. Students who were questioning their sexual orientation reported the most bullying, the most homophobic victimization, the most drug use, the most feelings of depression and suicidality, and more truancy than either heterosexual or LGB students. A positive school climate and a lack of homophobic victimization moderated the differences among sexual orientation status and outcomes. Results indicate that schools have the ability to lessen negative outcomes for LGB and sexually questioning students through creating positive climates and reducing homophobic teasing.     

Review of analytical techniques for arson residues

Arson is a serious crime that affects society through cost, property damage, and loss of life. It is important that the methods and technologies applied by fire investigators in detection of evidence and subsequent analyses have a high degree of reliability, sensitivity, and be subject to rigorous quality control and assurance. There have been considerable advances in the field of arson investigation since the 1950s. Classification of ignitable liquids has been updated to include many new categories due to developments in the petroleum industry. Techniques such as steam or vacuum distillation and gas chromatography (GC) with flame ionization detection that may have been considered acceptable--even a benchmark--40 years ago, are nowadays generally disfavored, to the extent that their implementation may almost be considered as ignorance in the field. The advent of readily available mass spectrometric techniques has revolutionized the field of fire debris analysis, increasing the degree of sensitivity and discrimination possible considerably. Multi-dimensional GC--particularly GC x GC--while not yet widely applied, is rapidly gaining recognition as an important technique. This comprehensive review focuses on techniques and practices used in fire investigation, from scene investigation to analysis.     

Influencing the Penal Agenda? The Justice Select Committee and ‘Transforming Justice’, 2010–15

This article assesses the policy influence of the House of Commons Justice Select Committee, established to oversee the work of the Ministry of Justice following its creation a decade ago. The committee has, from the outset, overseen many contentious policy and legislative developments in the penal field, although none so extensive as those introduced following the formation of the Conservative–Liberal Democrat coalition government in 2010. Despite the newsworthy nature of its business, the committee has, to some extent, operated in the shadows of its high‐profile sister, the Home Affairs Select Committee, and has received surprisingly limited attention from criminologists and political scientists alike. Forming part of a wider investigation into the work of the committee, this article examines the extent to which it was able to influence penal developments during the coalition years. This period is of particular interest given that it heralded the end of the New Labour administration and welcomed the ‘fresh thinking’ of a coalition leadership keen to emphasise its progressive attitude towards law and order. While the committee was able to influence the direction of penal policy on several occasions, this mostly occurred as a result of its proactive or niche inquiries. The committee had less impact when conducting inquiries that assessed the government's flagship policy agenda, however. Such findings brought into question the ability of the committee to influence the most significant justice transformations in this era of new penal governance.     

Analysis of Gunshot Residue and Associated Materials—A Review

Abstract: A comprehensive review of the scientific literature on gunshot residue (GSR) is presented. Aspects of both inorganic and organic GSR are discussed, from formation and distribution, to sample collection, preparation, and analysis using a variety of techniques. The interpretation of GSR results is also considered including issues surrounding the contamination, distribution, and transfer of GSR. Potential problems with ulterior sources of GSR like particles have been reported in the literature. For example, particles from environmental and occupational sources have been highlighted as exhibiting similar chemical and morphological characteristics to GSR. These findings are put into context with regard to interpreting samples. A move toward a “case by case” approach is argued to be more preferable to a “formal” classification system where possible. The analysis of both inorganic and organic compositions of residue samples as well as morphological considerations is considered to be a more ideal approach to GSR analysis, whereever practicable.     

Fate and Behavior of Gunshot Residue: Recreational Shooter Vehicle Distribution

The susceptibility for recreational shooters to transfer gunshot residue (GSR) to both the interior and exterior of a vehicle is investigated. A comprehensive sampling protocol was used to assess the most likely areas of GSR transfer from recreational shooter contact, such as the steering wheel and the area, the firearms were stored (the trunk). Up to 315 characteristic GSR, particles were found in several locations throughout the interior of a vehicle. As many as 876 characteristic particles were found throughout a single vehicle. The data indicate that vehicles frequently occupied by firearms users are a potential source for inadvertent transfer of GSR to persons unrelated to firearm activity. In criminal cases where vehicles have been used, such transfer processes for GSR need to be considered within the context of any case interpretation. The implications for subsequent contamination and transfer processes from such vehicles require further investigation.