Spherical Photography and Virtual Tours for Presenting Crime Scenes and Forensic Evidence in New Zealand Courtrooms

The delivery of forensic science evidence in a clear and understandable manner is an important aspect of a forensic scientist's role during expert witness delivery in a courtroom trial. This article describes an Integrated Evidence Platform (IEP) system based on spherical photography which allows the audience to view the crime scene via a virtual tour and view the forensic scientist's evidence and results in context. Equipment and software programmes used in the creation of the IEP include a Nikon DSLR camera, a Seitz Roundshot VR Drive, PTGui Pro, and Tourweaver Professional Edition. The IEP enables a clear visualization of the crime scene, with embedded information such as photographs of items of interest, complex forensic evidence, the results of laboratory analyses, and scientific opinion evidence presented in context. The IEP has resulted in significant improvements to the pretrial disclosure of forensic results, enhanced the delivery of evidence in court, and improved the jury's understanding of the spatial relationship between results.     

Fatty Acid Profiles for Differentiating Growth Medium Formulations Used to Culture Bacillus cereus T‐strain Spores

Microbial biomarkers that indicate aspects of an organism's growth conditions are important targets of forensic research. In this study, we examined fatty acid composition as a signature for the types of complex nutrients in the culturing medium. Bacillus cereus T‐strain spores were grown in medium formulations supplemented with one of the following: peptone (meat protein), tryptone (casein protein), soy protein, and brain–heart infusion. Cellular biomass was profiled with fatty acid methyl ester (FAME) analysis. Results showed peptone cultures produced spores enriched in straight‐chained lipids. Tryptone cultures produced spores enriched in branched‐odd lipids when compared with peptone, soy, and brain–heart formulations. The observed FAME variation was used to construct a set of discriminant functions that could help identify the nutrients in a culturing recipe for an unknown spore sample. Blinded classification tests were most successful for spores grown on media containing peptone and tryptone, showing 88% and 100% correct identification, respectively.     

Involving the Public: When Are Surveys and Stakeholder Interviews Effective?1

Scholars and practitioners alike advocate involving stakeholders in environmental decision making, although there is uncertainty regarding the effectiveness of public involvement tools and the degree of public involvement in the decision making process. Some researchers have gone a step further to promote the use of public surveys and stakeholder interviews as preferred means to include public concerns in environmental decision making. However, there is little evidence as to whether public involvement tools are effective at representing public preferences, especially when there is a shortage of technical information to inform public opinion. This study examines the effectiveness of surveys and stakeholder interviews for assessing the District of Columbia's environmental problems in a comparative risk assessment. The findings suggest that these public involvement tools are less effective when there is a shortage of technical data. Instead, more deliberative forms of public involvement may generate greater convergence of opinion regarding environmental problems.     

DART‐MS as a Preliminary Screening Method for “Herbal Incense”: Chemical Analysis of Synthetic Cannabinoids

Direct analysis in real time mass spectrometry (DART‐MS) served as a method for rapid high‐throughput screening of six commercially available “Spice” products, detecting various combinations of five synthetic cannabinoids. Direct analysis in real time is an ambient ionization process that, along with high mass accuracy time‐of‐flight (TOF)‐MS to 0.0001 Da, was employed to establish the presence of cannabinoids. Mass spectra were acquired by simply suspending a small portion of sample between the ion source and the mass spectrometer inlet. The ability to test minute amounts of sample is a major advantage when very limited amounts of evidentiary material are available. In addition, reports are widespread regarding the testing backlogs that now exist because of the large influx of designer drugs. This method circumvents time‐consuming sample extraction, derivatization, chromatographic, and other sample preparative steps required for analysis by more conventional mass spectrometric methods. Accordingly, the synthetic cannabinoids AM‐2201, JWH‐122, JWH‐203, JWH‐210, and RCS‐4 were identified in commercially available herbal Spice products, singly and in tandem, at concentrations within the range of 4–141 mg/g of material. Direct analysis in real time mass spectrometry decreases the time necessary to triage analytical evidence, and therefore, it has the potential to contribute to backlog reduction and more timely criminal prosecution.     

Elimination of Bioweapons Agents from Forensic Samples During Extraction of Human DNA

Collection of DNA for genetic profiling is a powerful means for the identification of individuals responsible for crimes and terrorist acts. Biologic hazards, such as bacteria, endospores, toxins, and viruses, could contaminate sites of terrorist activities and thus could be present in samples collected for profiling. The fate of these hazards during DNA isolation has not been thoroughly examined. Our goals were to determine whether the DNA extraction process used by the Royal Canadian Mounted Police eliminates or neutralizes these agents and if not, to establish methods that render samples safe without compromising the human DNA. Our results show that bacteria, viruses, and toxins were reduced to undetectable levels during DNA extraction, but endospores remained viable. Filtration of samples after DNA isolation eliminated viable spores from the samples but left DNA intact. We also demonstrated that contamination of samples with some bacteria, endospores, and toxins for longer than 1 h compromised the ability to complete genetic profiling.     

Critical Stress: Police Officer Religiosity and Coping with Critical Stress Incidents

As a result of exposure to critical stress inducing incidents, police officers experience high rates of family disruption, alcohol abuse, domestic violence, and physical and psychological problems. This paper evaluates the ability of religion to mitigate the harmful consequences of critical stress using data obtained from a survey of metropolitan police officers (n?=?811). Contrary to our expectations, we found less religious officer used more adaptive coping strategies when confronted by critical stress incidents than their more religious counterparts. Furthermore, we found Protestants employed more adaptive strategies than Catholics. Potential explanations for the unexpected findings are discussed.     

Loners,Colleagues, or Peers? Assessing the Social Organization of Radicalization

This study explores the utility of a sociological model of social organization developed by Best and Luckenbill (1994) to classify the radicalization processes of terrorists (i.e., extremist perpetrators who engaged in ideologically motivated acts of violence) who are usually categorized as loner or lone wolf attackers. There are several organizational frameworks used to define or classify violent acts performed by individuals who may or may not have ties to extremist groups, but these studies largely ignore the role of social relationships in radicalization and the extent to which they inform our knowledge of terror. To address this gap, we apply the Best and Luckenbill model of social organization using a qualitative analysis of three case studies of four lone actor or small cell terrorists. The findings demonstrate lone actors are not always true loners in the context of radicalization, and highlights the ways that the Internet and social ties foster the radicalization processes of terror.

     

The Modern Slaves: Specialized Knowledge and Democratic Governance

This article examines widely held assumptions among scientific elites positing that there is an increasing discrepancy between those with specialized knowledge and laypersons, that governmental policy is increasingly shaped by scientific research and its practitioners, and that these trends pose a threat to representative democracy. This article asserts that modern liberal democratic societies are characterized by enabling structural changes that have expanded the forms of and means for citizen action, and simplified civil society’s access to specialized knowledge.     

Guidelines for the identification of unknown samples for laboratories performing forensic analyses for chemical terrorism

Since the early 1990s, the FBI Laboratory has sponsored Scientific Working Groups to improve discipline practices and build consensus among the forensic community. The Scientific Working Group on the Forensic Analysis of Chemical, Biological, Radiological and Nuclear Terrorism developed guidance, contained in this document, on issues forensic laboratories encounter when accepting and analyzing unknown samples associated with chemical terrorism, including laboratory capabilities and analytical testing plans. In the context of forensic analysis of chemical terrorism, this guidance defines an unknown sample and addresses what constitutes definitive and tentative identification. Laboratory safety, reporting issues, and postreporting considerations are also discussed. Utilization of these guidelines, as part of planning for forensic analysis related to a chemical terrorism incident, may help avoid unfortunate consequences not only to the public but also to the laboratory personnel.