钥匙与机械锁痕特定性检验方法

在许多刑事案件现场中,犯罪分子总是利用各种各样方法和手段开锁、破坏琐,以非法手段进入某一特定的空间进行犯罪活动。现场勘察发现,使用这种手段作案的比例较高。为了打击此类犯罪,痕迹检验人员必须掌握对各类开锁、破坏锁案件中锁痕的勘验、检验方法,以便正确判断罪犯作案手段和工具,为侦察破案提供线索和证据。     

Police use of force: an examination of the minority threat perspective

The minority threat perspective suggests that the criminal justice system may be one mechanism through which the majority group (i.e. Whites) maintains control of culturally dissimilar minority groups. Although numerous studies have examined the relationship between minority representation and various policing outcomes, few have extended this research to police use of force in the context of stop-and-frisk practices. Using stop, question, and frisk data from the New York Police Department, this study examines (1) whether racial and ethnic composition influences police use of force, and (2) whether an individual’s race/ethnicity interacts with the racial/ethnic composition of a police precinct to produce disparities in police use of force. The results provide partial support for the minority threat perspective.     

Complaint reduction in Australian federal policing in the Australian Capital Territory

Across fifteen years to 2015–2016 the rate of public complaints against police in the Australian Capital Territory fell by an extraordinary 79%. This was a much larger and longer-term reduction in complaints than occurred anywhere else in Australia, and it is very unusual in the international policing literature. The paper attempts to examine the nature of this change in greater detail, and possible factors that may have influenced the change. Unlike some other studies, however, there was limited evidence of specific point-in-time innovations that may have affected the trend. Nonetheless, it is likely that a range of reforms in policing influenced the change, with possible lessons for other departments struggling with significant complaint problems. The main reforms included improved custody procedures, greater attention to ethics in recruitment and training, a complaints system focused on managing officer behaviour, enlarged external oversight, and more attention to de-escalation skills in use-of-force training.     

我国劳动力结构的演变及其影响研究

劳动力是经济增长的关键要素之一,其变化对我国经济社会发展有着深刻影响.本研究根据第七次全国人口普查主要数据,结合改革开放后以往人口普查数据和分年度人口数据,分析了我国劳动力结构的演变规律及可能带来的影响.研究发现,40余年来,我国劳动力结构发生了根本性的变化,并开始面临劳动年龄人口减少、抚养负担加重、劳动力地区分布不均...     

关于汽车弯路事故的几种受力分析

汽车转弯时发生的交通事故,除了因抢行或者瞭望不佳而引发事故以外,绝大多数是在侧滑力的作用下导致车辆驶离本车道发生碰撞或者追尾、倾翻的,此类问题易引发重特大交通事故。为了说明车辆转弯侧滑事故的机理,文章对车辆常见的几种转弯现象进行了受力分析,以期为事故处理提供可以借鉴的分析资料。