犯罪现场分析中的事件性质分析

现场分析的一项重要任务是判明事件性质,是犯罪案件还是其他事件。有些现场不难判明事件性质,而有些现场想要判明事件性质却颇为困难,在这种情况下,现场分析应将事件性质问题作为重要议题。文章从分析事件性质、分析假案、分析案件性质三个方面对事件性质进行了分析论述。     

侦查学学科定位问题再探——兼论侦查主体改革之思路

随着《学位授予和人才培养学科目录》的出台,沉寂多时的侦查学学科定位(或日属性)问题再次引发热论.侦查学到底归属于谁?众说纷纭.但主要焦点还是集中在是属于法学还是属于公安学上.将侦查学定位于“本质上属于公安学,但仍具有某些法学的特性”,似乎能够更好地解决争议、息纷止争,也更能体现侦查学学科独有的特性.正因如此,它能够为侦查主体的改革等一系列问题提供思路,使其朝着科学化和法治化方向迈进.     

142例二轮摩托车驾乘人员损伤特征分析

目的分析二轮摩托车交通事故的现场特点和驾乘人员的损伤特征,为甄别摩托车驾乘人员提供信息。方法收集本区2005年至2014年142例二轮摩托车交通事故人员伤亡资料,包括事故经过、事故类型、现场特点、车辆特点、驾乘人员情况、损伤情况及死亡原因等相关资料,进行分析总结。结果二轮摩托车驾乘人员在各类型事故中的损伤部位和特征、出现率及严重程度有明显的区别,事故现场有规律性。结论通过现场与人体损伤特征的分析,可以甄别摩托车驾乘人员。     

高铁隧道内气动效应形成损坏痕迹特点分析

动车高速通过隧道时,运行车体推动的空气由于受到隧道壁的约束能形成能量很强的冲击气流,有时会造成一些设备设施损坏、脱落,进而危及高铁行车安全。这类事件发生后,铁路部门往往误以为是人为破坏,并以破坏案件进行上报。本文通过对特定动车行车事故的现场勘验、调查访问,分析了高铁隧道内气动效应对特殊位置设施造成损坏的过程及形成痕迹特点,准确认定了事件性质和事故发生原因,并对气动效应形成损坏痕迹和常见工具形成痕迹的区别进行了探讨。     

美国诱惑侦查制度及对我国的启示

美国社会执法实践中广泛存在诱惑侦查的使用，关于诱惑侦查的法律和制度规制经过长期演变和经验积累，形成了较为完整的诱惑侦查制度。本文通过对美国诱惑侦查制度的法律规定和具体实践的探究，以期为完善公安机关执法工作提供一些参考。我们应借鉴美国关于诱惑侦查方式运用的有益经验，加快有关诱惑侦查领域的立法进程，明确具体的法律规定。公安机关在执法实践中应正确认识诱惑侦查的合理性，慎用诱惑侦查手段，严格遵循程序执法，规范自身执法行为，积极改进执法方式。     

浅析拐卖人口案件侦查之买方市场的防控

拐卖人口现象屡禁不止,根本原因之一是买方市场的存在及发展.本研究基于对拐卖人口买方市场存在发展的背景条件以及当前形势和防控难点进行分析研究,指出买方市场组成结构的复杂性与单方面打击不协调等问题.针对当前背景下采取系统作战方式应对拐卖人口新特点的重要性,通过咨询专家、文献研究以及与主要案发地区一线民警深入沟通,给买方市场防控措施提出相关建议,以期望对拐卖人口案件侦查有一定借鉴意义.     

论我国侦讯取证的现状与制度完善

侦讯取证与人权保障是案侦活动的两个方面，但它们不是均衡发展的。维护人权观念的崇高，不能也不应掩盖打击犯罪在先的事实真相。侦讯活动与限制人身自由是同步的。考察我国的未决羁押与律师会见，如实供述与不自证其罪，相对的默示沉默权，辩护取证的显形化与规则化，律师在场权与全程同步录音录像，口供自愿性的证明能力，司法甄别、排除和认定口供的复杂性等问题。回答如何处理证据的法律真实和客观真实、形式真实和实质合理，取证打击犯罪与保护人权的关系。它们在侦讯取证制度的完善中，需有相应的配套举措。     

Two-dimensional metric comparisons between dynamic bare footprints and insole foot impressions-forensic implications

Footwear may be found at crime scenes as physical evidence. Such footwear often has impression features of the wearer’s foot on the insole of the shoe. Scientific research and literature have established that footprints are distinct. This study compares two-dimensional measurements on bare footprints to foot impressions on insoles to determine if significant differences or similarities exist. Dynamic footprints were collected from 51 donors using the Identicator® Inkless Shoe Print Model LE 25P system. Seven foot length and width measurements were taken based on the Reel linear measurement method. Footprint measurements between bare footprints and foot impressions on the insoles were compared. Only two differences (p > 0.05) were observed between the various bare footprint and insole foot impression measurements on the right and left side for most of the measurements, CALC (p < 0.001) and A1 (p = 0.04). Bare footprint and insole A5 measurements on the left side were also significantly different (p = 0.015). The results of the study have implications in the forensic analysis of foot impression evidence on insoles in footwear in assisting with identifying the wearer of said footwear. Situations may arise in the forensic context when comparing the foot impression on the insole of footwear to a suspect’s bare footprint or a footprint from post-mortem remains. This study contributes to the scant literature available on the topic and to understanding the similarities and differences observed in the various linear measurements that may be utilized in the comparison process of footprint impressions on shoe insoles to bare footprints.     

A Qualitative Assessment of Stress Perceptions Among Members of a Homicide Unit

Existing research on stress among police assumes the presence of uniform stressors across job roles and borrows upon generic stress instruments to tap stress types and levels. The present study draws upon interviews with 26 members of a metropolitan homicide unit to provide an inductive vantage point on stress perceptions within a specialized area of policing. We provide evidence that the occupational and organizational forms of stress detailed by these officers are shaped largely by the unique nature of homicide work. Among the unique task-related stressors observed include the complexities of homicide crime scenes, time pressures, cases assignment factors, paperwork demands, and long-term ownership over individual case files. A series of structural issues from both within and outside the police agency are identified as organizational stressors unique to homicide work. We conclude with a proposed theory of homicide investigator stress and implications for future research.     

论大数据技术对公安工作的影响

大数据具有的4V特性决定了大数据技术将从多个角度和层面丰富侦查方式,提高了各类案件的侦破效率;以高科技预防高科技犯罪,做到打击迅速、减少损失,还百姓以现实的安全感;整合多种资源,引导社会运转,预见行为规律,构建令百姓满意的和谐治安环境;让公安工作始终开展的公正透明,百姓享有现实与虚拟环境里的平等权利;提供高效的管理手段和模式,不断推动社会管理的创新。全面认识大数据技术对公安工作的影响,有利于推动公安工作上台阶,不断实现新的突破。