Edward M. Suzuki Ph.D. 《Journal of forensic sciences》2014,59(5):1205-1225

Bismuth oxychloride (BiOCl) was the first viable synthetic pearl pigment developed 50 years ago. It was only used for a limited time period in automotive paint (model years 1998–2000), serving to produce luster for a single Chrysler black metallic color. Identification of this pigment in an unknown automotive paint can thus facilitate determination of the vehicle of origin. Bismuth oxychloride imparts effects similar to those produced by silver/white mica pearlescent pigments, and such a pigment was used together with bismuth oxychloride in at least one original equipment manufacturer (OEM) basecoat. Silver/white micas are now used primarily in white pearl tricoat systems. This article describes the identification of bismuth oxychloride and silver/white mica pearlescent pigments in automotive finishes using FT‐IR spectroscopy, X‐ray fluorescence (XRF) spectrometry, and SEM/EDS analysis. Data for some cadmium pigments, which were used in automotive paint several decades ago, are also presented as they produce infrared absorptions similar to that of bismuth oxychloride.  相似文献   

    

Michael Welner M.D.  Emily E. Davey M.A.  Adam Bernstein B.A. 《Journal of forensic sciences》2014,59(5):1254-1259

The fallibility of forensic science consultation is an ongoing and major justice concern. Prospective peer‐reviewed forensic consultation has over 10 years of application in American criminal and civil courts, adapting from the traditional oversight of teaching hospitals, rules of evidence and discovery, conventions of testimony of expert witnesses, and attorneys' overall trial strategy. In systematizing heightened oversight, this process ensures greater accountability in forensic science consultation. The integration of peer reviewers' complementary expertise and experience enhances the sophistication and overall quality of assessment. Forensic examination frequently involves the interface of different specialties. Multidisciplinary peer review augments expert proficiency with that of professional peers having different vantage points from relevant scientific disciplines. This approach ensures greater sophistication of a case inquiry, built‐in accountability, and streamlined processes when multiple experts are necessitated. Here, the authors present examples of several cases and the primary and secondary benefits of this collaborative, rigorous, cross‐disciplinary exercise.  相似文献   

    

Ashley E. Doran B.A.  David R. Foran Ph.D. 《Journal of forensic sciences》2014,59(5):1343-1350

Forensic practitioners and crime laboratories regularly collect and analyze fingernail evidence; however, the best techniques for processing such evidence have not been established. In this study, numerous aspects of fingernail evidence processing—collection of exogenous cells, transportation, purification of DNA, and STR analysis—were analyzed using fingernails harboring applied blood or epithelial cells from scratchings. Autosomal STR mixtures resulted when fingernails were soaked or swabbed, while scrapings rarely generated mixtures but exhibited allelic dropout. Y‐STRs yielded single source profiles, with scrapings again showing dropout. A silica‐based kit extraction recovered significantly more exogenous DNA than did organic extraction, neither of which was affected by nail polish. Swabbing nails in succession resulted in some cross‐contamination from exogenous material, while transporting nails together did not, although there was loss of exogenous cells. Optimized nail processing produced complete Y‐STR profiles of male volunteers from female fingernails following scratchings.  相似文献   

    

Anne Gaïffas M.D.  M.Sc.  Cédric Galéra M.D.  Ph.D.  Virginie Mandon M.D.  Manuel P. Bouvard M.D.  Ph.D. 《Journal of forensic sciences》2014,59(4):1016-1019

While forensic studies have reported higher than community rates of mental disorders in imprisoned populations, few studies have focused on attention‐deficit/hyperactivity disorder (ADHD) in these subjects. The aim of this study was to investigate ADHD prevalence among young French male prisoners. A specific diagnostic interview (Conners' Adult ADHD Diagnostic Interview for DSM‐IV, CAADID) was used. Correlations between ADHD, subsyndromal ADHD, and criminal features were investigated. 11% of young male prisoners among 93 male subjects aged 18–35 years met the criteria for actual ADHD, and 17% met those for childhood ADHD. Considering ADHD and subsyndromal ADHD, prevalence was about 43% in adulthood. ADHD and subsyndromal ADHD in adulthood were significantly associated with a higher number of imprisonments and a younger age at first arrest. It could be advisable to better identify subjects with ADHD symptoms among prison populations.  相似文献   

    

Peter Munyi 《The Journal of World Intellectual Property》2015,18(1-2):65-85

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Paddy Rawlinson  Vijay Kumar Yadavendu 《The Howard Journal of Crime and Justice》2015,54(1):8-24

Despite a number of beneficent outcomes, clinical trials on human subjects have exposed some of the worst forms of state crime, most notably in Nazi Germany. Even with the subsequent establishment of guidelines for the protection of human subjects, such as the Nuremberg Code, clinical trials resulting in death and injury is a continuing feature of medical research, especially as Western states outsource more trials to the private sector where profit margins often trump personal safety. Focusing on the clinical trials business in India, the article argues that the exploitation of human subjects in developing countries, affecting as it does the most vulnerable groups, must be understood as a form of state‐corporate crime. In this way, the moral distance we prefer to place between Nazi medical crimes and those committed in the interests of neoliberal values becomes less viable and the need for effective responses to unethical clinical trials more pressing.  相似文献   

    

ESTHER F.J.C. VAN GINNEKEN 《The Howard Journal of Crime and Justice》2015,54(4):352-370

The rich body of prison literature suggests that imprisonment is a painful experience, even though imprisonment does not appear to uniformly cause psychological deterioration. However, psychological adjustment and its variations remain poorly defined in the literature. The aim of this study is to provide a framework for understanding psychological adjustment and describe patterns of adjustment of prisoners who are close to their release. Thirty semi‐structured interviews were conducted with male and female prisoners. Even in the same prison environment, prisoners showed a wide variety of patterns of psychological adjustment, characterised by differences in coping ability and functioning, mental health, subjective well‐being and outlook on the future.  相似文献   

    

Alessandro Mameli M.S.  Gavino Piras B.S.  Giovanni Delogu Ph.D. 《Journal of forensic sciences》2014,59(2):470-473

A universal method allowing for DNA profiling from bones exposed to seawater has not been reported yet. This study refers on the identification of a body immersed in seawater for 8 months. The biological material for identification was the mandibular body, usually characterized by low success rates of DNA analysis. Initially, two extraction protocols were performed with negative results: one used for bones immersed in fresh water and a silica‐column procedure. A third protocol was performed, which combined the extraction of a higher amount of bone powder, the use of multi‐silica‐based extraction columns followed by a concentration step. This protocol allowed to obtain low copy number DNA and to generate a 12‐loci STR profile by combining conventional STR typing and mini‐STR technologies. This protocol could be suitable when human bones have been exposed to severe environmental conditions, and the available nuclear DNA is highly degraded and in low copy number.  相似文献   

    

Ina Fettig Ph.D.  Simone Krüger Ph.D.  Jan H. Deubel M.S.  Martin Werrel M.S.  Tina Raspe  Christian Piechotta Ph.D. 《Journal of forensic sciences》2014,59(3):743-749

The chemical analysis of fire debris represents a crucial part in fire investigations to determine the cause of a fire. A headspace solid‐phase microextraction (HS‐SPME) procedure for the detection of ignitable liquids in fire debris using a fiber coated with a mixture of three different sorbent materials (Divinylbenzene/Carboxen/Polydimethylsiloxane, DVB/CAR/PDMS) is described. Gasoline and diesel fuel were spiked upon a preburnt matrix (wood charcoal), extracted and concentrated with HS‐SPME and then analyzed with gas chromatography/mass spectrometry (GC/MS). The experimental conditions—extraction temperature, incubation and exposure time—were optimized. To assess the applicability of the method, fire debris samples were prepared in the smoke density chamber (SDC) and a controlled‐atmosphere cone calorimeter. The developed methods were successfully applied to burnt particleboard and carpet samples. The results demonstrate that the procedure that has been developed here is suitable for detecting these ignitable liquids in highly burnt debris.  相似文献   

    

Edward M. Suzuki Ph.D. 《Journal of forensic sciences》2014,59(2):344-363

Chrome Yellow (PbCrO₄·xPbSO₄) was a common pigment in U.S. automobile OEM finishes for more than three decades, but in the early 1990s its use was discontinued. One of its main replacements was Bismuth Vanadate (BiVO₄·nBi₂MoO₆, n = 0–2), which was commercially introduced in 1985, as this inorganic pigment also produces a very bright hue and has excellent outdoor durability. This paper describes the in situ identification of Bismuth Vanadate in automotive finishes using FT‐IR and dispersive Raman spectroscopy and XRF spectrometry. Some differentiation of commercial formulations of this pigment is possible based on far‐infrared absorptions, Raman data, and elemental analysis. The spectral differences arise from the presence or absence of molybdenum, the use of two crystal polymorphs of BiVO₄, and differences in pigment stabilizers. Bismuth Vanadate is usually not used alone, and it is typically found with Isoindoline Yellow, hydrous ferric oxide, rutile, Isoindolinone Yellow 3R, or various combinations of these.  相似文献