Accuracy and Repeatability of Trajectory Rod Measurement Using Laser Scanners

Three‐dimensional (3D) technologies contribute greatly to bullet trajectory analysis and shooting reconstruction. There are few papers which address the errors associated with utilizing laser scanning for bullet trajectory documentation. This study examined the accuracy and precision of laser scanning for documenting trajectory rods in drywall for angles between 25° and 90°. The inherent error range of 0.02°–2.10° was noted while the overall error for laser scanning ranged between 0.04° and 1.98°. The inter‐ and intraobserver errors for trajectory rod placement and virtual trajectory marking showed that the range of variation for rod placement was between 0.1°–1° in drywall and 0.05°–0.5° in plywood. Virtual trajectory marking accuracy tests showed that 75% of data values were below 0.91° and 0.61° on azimuth and vertical angles, respectively. In conclusion, many contributing factors affect bullet trajectory analysis, and the use of 3D technologies can aid in reduction of errors associated with documentation.     

Controversial Suicide Case Using a Submachine Gun with a Sound Suppressor—The Need of Team Work of Forensic Chemistry and Firearm Examiners

Evidence materials in a presumed suicide case were studied by a firearm examiner and a forensic chemist. The victim's body with double gunshot wounding in his forehead, a machine gun in the sustained fire mode with a silencer, and four cartridge cases were found. Examinations of the evidence, the case file studies, and experiments dedicated to the case were carried out. Relationships between the placement of cartridge cases and the gun were established using a fast camera. The distributions of gunshot residues on the evidence materials and within the comparative gunshot patterns were studied by means of optical and electron microscopy, X‐ray microanalysis, and infrared spectroscopy. The shooting distance was assessed to be 30 cm or more, whereas the greatest distance that could have been achieved by the victim himself was about 11–13 cm. The obtained results supported the version of homicide rather than suicide.     

《核安全法》背景下我国核损害赔偿制度立法研究

核工业是实现我国能源可持续发展的重要支柱,对保持我国核大国地位,维护国家安全,推动经济发展起着非常重要的作用。然而核电工业的发展又面临着核损害事故的风险。因此,核损害赔偿法律制度对于核电事业的建设与发展至关重要。2018年起正式实施的《核安全法》对核损害赔偿问题进行了原则性规定。我国现行核损害赔偿制度依然不成体系,存在专门立法效力层级过低,原则性规定可操作性不强,内容不够完善等问题。建立健全核损害赔偿法律制度有利于保障核电事业的健康发展,能够依法尽可能地补救损害所产生的后果,同时有助于完善我国核法律体系,更为适应核电"走出去"的新形势。在现有制度的基础上,我国未来核损害赔偿法律制度要明确制度目标与宗旨,界定核损害的定义与范围,确立营运者严格责任制与唯一责任制,提高营运者责任限额并实行财务保证制度,建立健全核保险,确立并细化国家补充性赔偿责任。     

认知脑电位检测在目击证人心理面孔重建中的应用

检验目击证人对犯罪嫌疑人面孔记忆的正确性是一项困难的工作。在证人面孔记忆的语义提取过程中,严格遵守完形原则,尽量减少影响证人记忆和再认的因素,把握细节,可以提高目击证人心理面孔重建的质量。认知脑电位检测法可以通过对记忆反应的脑电图成分、潜伏期、波幅等指标的测量,有效判断证人对列队辨认中的面孔是否存有记忆。本文对脑电位检测在目击证人心理面孔重建中的研究和应用进行综述,希望能为相关研究和实践提供参考。     

电动两轮车侧翻倒地滑动摩擦系数实验研究

目的两轮车侧翻倒地后的滑行摩擦系数是利用两轮车碰撞后倒地滑行距离进行速度计算的关键参数,论文通过试验研究提出用于道路交通事故速度计算的电动两轮车侧翻倒地滑动摩擦系数。方法在综合分析电动两轮车侧倒滑行摩擦系数影响因素的基础上,利用正交试验设计摩擦系数实验方案,并采用实车牵引的方法,在不同速度条件下,分别在干燥、潮湿的沥青混凝土路面及水泥混凝土路面上进行实验。结果实验所得数据显示,电动两轮车侧翻倒地滑动摩擦系数的范围为0.40～0.60。结论通过对所得数据进行处理,提出适用于电动两轮车交通事故再现的摩擦系数范围。     

基于MADYMO软件的交通事故中行人运动机理研究

事故重建、数据分析以及计算机仿真是行人安全防护研究的三个重要手段。行人运动机理的研究对于揭示人-车交通事故的特征具有非常重要的意义。文章以一起真实案例为基础,运用MADYMO仿真分析探讨真实交通事故中行人的运动机理。并以真实的交通事故数据作为验证手段。     

理解与说明——论人文科学方法论的重建

自然科学、社会科学和人文科学的研究对象不同,决定了它们研究方法的区别。人文科学以人的精神世界为研究对象,这使得其研究方法具有特殊性。关于人文科学研究方法的争论主要有统一论、独立论和家族相似论。若要建立科学的方法论,必须既反对统一论和独立论的一刀切的研究方法,也要反对家族相似论的模糊不清的研究方法,要将理解——研究的主观方面和说明——研究对象的客观方面相结合作为其研究的主要方法。     

事故车辆挡风玻璃破损的原因及检验要点

挡风玻璃破损在事故车辆中较为常见,对挡风玻璃破损的类型及原因进行分析,弄清不同原因引起的挡风玻璃破损痕迹的形态特征,提出挡风玻璃破损痕迹检验的要点,为查明事故真相提供依据。     

监狱执法人员免责机制初探

监狱作为维护社会稳定和政治延续的统治工具,一直默默地发挥着它不可或缺的功能。近年来一系列社会热门事件的发生,使监狱备受瞩目。尤其在信息公开透明且传播迅速的社会里,监狱的安全稳定也成为社会稳定的前提要件。监狱如何构建科学公正的监狱执法人员免责机制,则成为相关理论界与实务界人士共同关注的新视角。     

Somaliland's post-war reconstruction: Rubble to rebuilding

ABSTRACT

This study captures the momentum of Somaliland's national reconciliation nationstate-rebuilding phase as it drives a reconstruction process involving the demobilisation of militias; internal state institutional reconstruction focusing on the House of Elders and the House of Representatives; the international dimensions of reconstruction involving humanitarian aid and developmental assistance; private reconstruction initiatives interacting with the development of a monetary exchange process and the participation of the Somaliland diaspora; and the role of women as the backbone of the Somaliland economy, and how all of these social components of nation-state building are framed constitutionally in the crafting of a multi-party democracy with northern Somali characteristics. However, the broader context in which these reconstructive dynamics unfold is conditioned by the emergence of militant expressions of political Islam within and outside the Somali coast in and around the Red Sea ‘Afrabian’ transregion and the Persian Gulf.