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851.
Organizing a Proficiency Testing Program on Stamp Impressions Examination in Accordance with ISO/IEC 17043 Requirements 下载免费PDF全文
Chi‐keung Li Ph.D. Janesse Wing‐sze Hui Ph.D. Chi‐Ming Pang Ph.D. 《Journal of forensic sciences》2018,63(5):1556-1560
Stamps and stamp impressions examinations are based on matching defects and design details on the questioned and control samples. These examinations are routinely carried out by document examiners around the world. International proficiency tests for questioned documents examination have been available for decades while similar programs specifically focusing on stamp impressions examination are rare. This study reported a recent proficiency testing program on stamp impressions examination organized by an accredited provider in accordance with ISO/IEC 17043 requirements. Twenty‐four forensic laboratories registered for the program. Apart from giving details on the design and operation of the program, this study also aimed to provide the limitations and difficulties encountered in sample preparations, homogeneity, and stability tests of the testing materials. Various comments and feedbacks received from the participants, particularly in respect of examination approaches, challenges faced by the participants in forming conclusions and their suggestions for further improvement would be evaluated. 相似文献
852.
Skeletal Trauma Resulting From Fatal Low (≤3 m) Free Falls: An Analysis of Fracture Patterns and Morphologies 下载免费PDF全文
Samantha K. Rowbotham M.Ar.Sc. Soren Blau Ph.D. Jacqueline Hislop‐Jambrich Ph.D. Victoria Francis M.B.B.S. M.Sc. 《Journal of forensic sciences》2018,63(4):1010-1020
The skeletal trauma resulting from fatal low (≤3 m) free falls is poorly researched and understood by forensic practitioners. The aim of this study was to identify the types of skeletal trauma resulting from low falls through investigating fracture patterns and morphologies. Skeletal trauma was analyzed using full‐body postmortem computed tomography scans of 145 individuals who died from a low free fall. Trauma was then contextualized to the variables that influence how a person falls using multiple logistic regression. Results showed fracture patterning primarily involved the axial skeleton and that there were a number of patterns significantly associated with the height fallen, pre‐existing health conditions, and age. Analysis of fracture morphologies showed 108 possible fracture types, six of which were significantly associated with the height fallen. Understanding the skeletal trauma characteristic of low free falls will further inform anthropological interpretations of trauma in cases where a fall may be considered the possible mechanism. 相似文献
853.
Katja Volz M.Sc. Lisa‐Marie Bahr M.Sc. Markus Heinrichs Ph.D. Dieter Vaitl Ph.D. Wolfgang Ambach Ph.D. 《Journal of forensic sciences》2018,63(5):1419-1428
An approach toward detecting hidden knowledge is the Concealed Information Test (CIT). It relies on the memory of crime‐relevant information. This study investigated whether its validity is susceptible to memory distortion by misleading information. A misleading information paradigm was employed to distort memory prior to an interrogation with a CIT. Forty‐one participants watched a video with specific crime‐related information. After a 1‐week retention interval, misleading information was introduced. Afterward, a CIT was performed, followed by a threefold memory test. When misleading information was presented, memory performance was reduced, and no physiological response differences between crime‐relevant and crime‐irrelevant information were found. Without presenting misleading information, physiological responses differed between responses to crime‐relevant and crime‐irrelevant information. However, responses in all physiological measures also differed between misleading and irrelevant information. The results indicate that the CIT is susceptible to misleading information, which reduces its validity in specific constellations. 相似文献
854.
This article explores the democratic values underlying public services when they are outsourced. Building on Rosenbloom and Piotrowski's (2005a, 2005b) framework, we examine whether and how administrative law norms – that serve as central democratic governance and accountability mechanisms in the administrative state – are extended to the new (private) frontline service providers. Through a study of the regulation of the privatized welfare‐to‐work programme in Wisconsin, we find that new forms of administrative law are evolving in third‐party government. These forms differ from administrative law as it usually applies to public agencies in several important aspects. The findings highlight the active role of legislative and administrative mechanisms in the promotion of these new forms of administrative law; and they shed light on the transformations that administrative law norms undergo in the age of third‐party government. 相似文献
855.
Zuzanna Brożek‐Mucha Ph.D. 《Journal of forensic sciences》2009,54(3):678-681
Abstract: A reconstruction of an incident of a fatal wounding of a football fan with a parachute flare was performed. Physical and chemical examinations of the victim’s trousers and parts of a flare removed from the wound in his leg were performed by means of an optical microscope and a scanning electron microscope coupled with an energy dispersive X‐ray spectrometer. Signs of burning were seen on the front upper part of the trousers, including a 35–40 mm circular hole with melted and charred edges. Postblast residue present on the surface of the trousers contained strontium, magnesium, potassium, and chlorine. Also the case files—the medical reports and the witnesses’ testimonies—were thoroughly studied. It has been found that the evidence collected in the case supported the version of the victim being shot by another person from a distance. 相似文献
856.
Dae‐Kyoon Park M.D. Ph.D. Kyung‐Ho Park Ph.D. Jeong‐Sik Ko Ph.D. Yi‐Suk Kim M.D. Ph.D. Nak‐Eun Chung M.D. Ph.D. Yong‐Woo Ahn D.D.S. Ph.D. Seung‐Ho Han M.D. Ph.D. 《Journal of forensic sciences》2009,54(3):513-518
Abstract: Meticulous recovery of victims in the Daegu subway disaster was possible, because charred and fragmented victims were left in situ. Because bodies were piled one over another within the train, appropriate methodology during the recovery was critical to identifying the victims. The disaster area was thoroughly documented with notes, photographs, and schematic drawings of the various locations. The recovery team, comprising two medical examiners and one forensic anthropologist, decided when charred body parts and cremated bones were linked to the same individual based on the anatomy and forensic anthropological examination. Without these recovery procedures, it would not have been possible to efficiently harvest representative DNA sample from most of the victims’ body parts. After the entire process of identification, 136 victims were positively identified, and six victims remained unidentified. This study supports the crucial role of forensic anthropologists in the recovery of victims, especially in fire scenes. 相似文献
857.
Seung‐Ho Han M.D. Ph.D. Sang‐Hyun Kim M.S. Yong‐Woo Ahn D.D.S. Ph.D. Gi‐Yeong Huh M.D. Ph.D. Dai‐Soon Kwak Ph.D. Dae‐Kyoon Park M.D. Ph.D. U‐Young Lee M.D. Yi‐Suk Kim M.D. Ph.D. 《Journal of forensic sciences》2009,54(3):519-522
Abstract: The purpose of this study was to develop age‐predicting equations from the anterior cortex of the femur of Korean adults. Seventy‐two femoral samples (44 male and 28 female) were obtained from Korean cadavers and used to develop the equations. The thin sections (<100‐μm thick) were prepared by manual grinding; the sections were not decalcified and were stained with Villanueva bone stain reagent. Analysis of covariance showed no significant differences in age‐adjusted histomorphological variables between sexes. In stepwise regression analysis, osteon population density, average osteon area, and the most anterior cortical width were selected for an age‐predicting equation which produced a high regression correlation (R2 = 0.789). The average Haversian canal area was not significantly related to age for any specimen. 相似文献
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