伪造犯罪现场:对25起案例的分析研究

文章评述了伪造犯罪现场的研究历史 ,并对 2 5例伪造犯罪现场案件从罪犯特点、受害人特点、案件特点、犯罪动机及执法人员犯罪等五个方面进行了分析研究。把伪造犯罪现场和作案人结合起来研究的目的 ,是为了更好、更深入地研究伪造现场作案人 ,给刑侦人员和物证学家对伪造犯罪现场的勘查、取证以及现场重建提供一些参考     

Portable high‐resolution automated 3D imaging for footwear and tire impression capture

The forensic science community raised the need for improved evidence recognition, collection, and visualization analytical instrumentation for field and laboratory use. While the 3D optical techniques for imaging static objects have been extensively studied, there is still a major gap between current knowledge and collecting high‐quality footwear and tire impression evidence. Among optical means for 3D imaging, digital fringe projection (DFP) techniques reconstruct 3D shape from phase information, achieving camera‐pixel spatial resolution. This paper presents a high‐resolution 3D imaging technology using DFP techniques dedicated to footwear and tire impression capture. We developed fully automated software algorithms and a graphical user interface (GUI) that allow anyone without training to operate for high‐quality 3D data capture. We performed accuracy evaluations and comparisons comparing with the commercial high‐end 3D scanner and carried out qualitative tests for various impressions comparing with the current practices. Overall, our technology achieves similar levels of accuracy and resolution with a high‐end commercially available 3D scanner, while having the merits of being (1) more affordable; (2) much easier to operate; and (3) more robust. Compared with the current practice of casting, our technology demonstrates its superiority because it (1) is non‐destructive; (2) collects more evidence detail than casts, especially when an impression is fragile; (3) requires less time and money to collect each piece of evidence; and (4) results in a digital file that can easily be shared with other examiners.     

Pitfalls of Computed Tomography 3D Reconstruction Models in Cranial Nonmetric Analysis*

Many studies in the literature have highlighted the utility of virtual 3D databanks as a substitute for real skeletal collections and the important application of radiological records in personal identification. However, none have investigated the accuracy of virtual material compared to skeletal remains in nonmetric variant analysis using 3D models. The present study investigates the accuracy of 20 computed tomography (CT) 3D reconstruction models compared to the real crania, focusing on the quality of the reproduction of the real crania and the possibility to detect 29 dental/cranial morphological variations in 3D images. An interobserver analysis was performed to evaluate trait identification, number, position, and shape. Results demonstrate a false bone loss in 3D models in some cranial regions, specifically the maxillary and occipital bones in 85% and 20% of the samples. Additional analyses revealed several difficulties in the detection of cranial nonmetric traits in 3D models, resulting in incorrect identification in circa 70% of the traits. In particular, pitfalls included the detection of erroneous position, error in presence/absence rates, in number, and in shape. The lowest percentages of correct evaluations were found in traits localized in the lateral side of the cranium and for the infraorbital suture, mastoid foramen, and crenulation. The present study highlights important pitfalls in CT scan when compared with the real crania for nonmetric analysis. This may have crucial consequences in cases where 3D databanks are used as a source of reference population data for nonmetric traits and pathologies and during bone-CT comparisons for identification purposes.     

MI Implementation in Juvenile Justice: A Case Report

Motivational interviewing (MI) is a communication style focused on enhancing clients’ own motivation towards change. In the justice system MI has evidence to support that it enhances communication and change behaviors in youth. As most MI training is designed for healthcare settings training and implementation of MI must be adapted to fit the juvenile justice model. This includes both rehabilitation and restorative justice. Here we describe the details that allowed one county small county in Pennsylvania to roll out MI training and initial skills review in less than 6 months. The case reviews the details of planning, trainings, and timing of activities. We then discuss what elements of those details fit into a greater implementation plan that may be applied elsewhere. Four key elements were instrumental to implementation: 1) appreciation of JPO time constraints, 2) cost containment 3) using blending to enhance JPO flexibility with MI use, and 4) policies that normalize use of MI. This outline may assist other courts in their own implementation efforts.     

Beyond ‘Revenge Porn’: The Continuum of Image-Based Sexual Abuse

In the last few years, many countries have introduced laws combating the phenomenon colloquially known as ‘revenge porn’. While new laws criminalising this practice represent a positive step forwards, the legislative response has been piecemeal and typically focuses only on the practices of vengeful ex-partners. Drawing on Liz Kelly’s (Surviving sexual violence. Polity Press, Cambridge, 1988) pioneering work, we suggest that ‘revenge porn’ should be understood as just one form of a range of gendered, sexualised forms of abuse which have common characteristics, forming what we are conceptualising as the ‘continuum of image-based sexual abuse’. Further, we argue that image-based sexual abuse is on a continuum with other forms of sexual violence. We suggest that this twin approach may enable a more comprehensive legislative and policy response that, in turn, will better reflect the harms to victim-survivors and lead to more appropriate and effective educative and preventative strategies.     

Class,caste and gender in collective action: Agricultural labour unions in two Indian villages

This study asks why class, caste and gender ties operated differently in the mobilisation of agricultural labourers from two villages with a regional union movement. In both villages, mobilisation involved coalition building ‐ either across class or caste boundaries. The type of coalition assembled seems to depend on past political strategies that have been in use by labourers at least since the late 1940s. The contribution of social networks as conditioned by the organisation of the male and female workforces is also investigated. Such variables are found to be more ‘explanatory’ of participation in collective struggles with the labour union than abstract class categories or structural change in the economy.