INVESTIGATING THE NORMATIVE ASPECTS OF PUBLIC POLICY

This article challenges the idea that political philosophy must be of peripheral concern in the study of public policy through an exploration of the concept of harm and the debate over aggressive police patrol. This exploration begins with a brief discussion of the ways the concept of harm figures in the justification and administration of police work. It proceeds through an exposition of differing ways the concept of harm can be defined, the normative overtones of these varying definitions, and some of their policy ramifications with regard to police work. Finally, the way conceptual variation figures in policy debate is explored in the context of the debate over aggressive police patrol—the policy of maximizing the surveillance and criminal interception aspects of police activity as a patrol strategy.     

This is What a Police State Looks Like: Sousveillance, Direct Action and the Anti-corporate Globalization Movement

Activists across the globe have increasingly incorporated digital communication technologies into their repertoire of direct action tactics to challenge state and corporate power. Examining the anti-corporate globalization protests at the September 2009 Group of Twenty (G-20) meetings in Pittsburgh, this paper explores how activists used sousveillance and counter-surveillance as direct action tactics to make excessive force by police more visible to the public. Collaborative endeavors such as the G-20 Resistance Project, the Tin Can Comms Collective and independent media centers provided activists with the necessary tactical and strategic communication networks to coordinate direct actions during the G-20 protests. Through the use of surveillance technologies widely available to the public such as video cameras, cell phones and the internet, activists created an environment of permanent visibility in which the behaviors of police were subjected to public scrutiny. The images captured by anti-globalization activists raises a salient question: Is this what a police state looks like?     

An innovative method for human height estimation combining video images and 3D laser scanning

Digitalization has increased the number of video surveillance systems that sometimes capture crime images. Traditional methods of human height estimation use projective geometry. However, sometimes they cannot be used because the video camera surveillance system is not available or has been moved and there are no reference lines on the frame. Scientific studies have developed a new method for human height estimation using 3D laser scanning. This model necessarily requires a series of approximations, which increase the final measurement error. To overcome this problem, in the present study, images of a subject are projected directly on the 3D model, estimating the height of the subject. This article describes the methodological approach adopted through the analysis of a real case study in a controlled environment executed by Carabinieri Forensic Investigation Department (Italy). The aim is to obtain a human anthropometric measure derived from frames extracted from the videos associated with the digital survey of the framed area obtained with 3D laser scanning and point cloud analysis. The result is the height estimation of five subjects filmed by a camera obtained through the combination of 2D images extracted by a DVR/surveillance systems with 3D laser scanning. Results show that most estimated measurements are less than the real measurement of the subject; it also depends on the posture of the subject while walking. Furthermore, results shows the differences between the real height and the estimated height with a statistical approach.     

监控视频中车辆平均速度测算方法比较

根据车辆速度计算公式,提出了两种基于监控视频测速的思路。一是视频图像与实地测量相结合,车辆运动距离通过与监控画面匹配后实地测量,运动时间通过视频帧率运算分别获得。二是利用车辆技术参数测量,在视频图像中,车身前后明显部位经过同一点,车辆运动距离和时间分别通过被测车型技术参数、视频帧率运算获得。并通过实验结果对两种方法进行评价。     

城市公安派出所“三岗合一”警务运作模式初探——以广州市天河区为例

结合天河区的治安实际,从"三岗合一"的理念、基本内涵来研究当前社会环境下的城市公安派出所警务运作机制,提出了"三岗合一"的基本理念。"三岗合一"实现了基层派出所指挥调度、视频监控、信息研判等三个不同岗位的一体化运作,优化了资源配置。     

The Local Role in Homeland Security

There has been considerable discussion since September 11 of the enormous resource that local police potentially represent in the fight against terrorism. This article identifies limits to the local role in homeland security by analyzing a case study of Dearborn, Michigan. Partly because Dearborn is home to one of the largest concentrations of Arabs in the United States, its experience with homeland security highlights two kinds of burdens that cities incur when they engage in proactive surveillance to identify potential terrorists: damage to their reputation (since police surveillance implies that its objects are not trustworthy) and damage to police legitimacy (since new surveillance may undermine trust between police and the community). Because the benefits of efforts to identify terrorists typically accrue to jurisdictions other than the one that engages in it—unlike street crime, terrorism is a national or even international problem—local governments have little reason to pursue it. Instead, cities such as Dearborn have reason to emphasize what I call the "community protection" aspects of homeland security, such as target hardening and emergency response. This finding has more general implications for our understanding of the police role and the politics of policing, showing how both are shaped by the structural location police occupy in federalist systems of government.     

Form follows function: Applying photographic content analysis to forensic firearm identification

Drawing forensic conclusions from an image or a video is known as “photographic content analysis.” It involves the analysis of an image, as well as objects, actions, and events depicted in images or video. In recent years, photographic depictions of objects suspected as illegal firearms have substantially increased, appearing on CCTV surveillance footage, captured by mobile phones and shared on social media. However, the law in Israel states that a person can be charged with illegally possessing a firearm only if it can be proven that the object is capable of shooting with lethal bullet energy. This becomes more challenging in cases where the firearm was not physically seized, and the evidence exclusively consists of images and video. In this study, photographic content analysis was applied to images and video where objects suspected as commercial or improvised firearms had been depicted. An image and event sequence reconstruction video databases of both firearms and replicas were created in order to better define firearm-specific functional morphological features. We demonstrate that it is possible to classify an object as a firearm by analyzing the functional, and not only the esthetic, morphology in images and video. It is also shown that event sequence reconstruction in video may be used to infer that an object suspected as a firearm has the capacity to shoot by confirming the occurrence of a shooting act or shooting process. Thus, photographic content analysis may be used to forensically establish that an object depicted in an image or a video is a firearm by ruling out other known scenarios, and without physically seizing it.     

Information,apprehension, and deterrence: Exploring the limits of police productivity

The capacity of police departments to solve crimes and apprehend offenders is low for many types of crime, particularly crimes of profit. This article reviews a variety of studies of police apprehension and hypothesizes that an important determinant of the ability of the police to apprehend criminals is information. The complete absence of information for many types of crime places fairly clear upper bounds on the ability of the police to effect solutions.To discover whether these boundaries are high or low we analyzed data from the 1973 National Crime Panel about the types and amount of information potentially available to police through victim reports and patrol activities. The evidence suggests that if the police rely on information made readily available to them, they will never do much better than they are doing now. On the other hand, there appears to be more information available to bystanders and passing patrols than currently is being used, which suggests that surveillance strategies and improved police methods for eliciting, recording, and analyzing information supplied by victims and witnesses might increase the probability of solving crimes and making arrests. In light of this we review a few possibly helpful innovations suggested in the literature on police productivity and procedure.     

Discolouring Democracy? Policing,Sensitive Evidence,and Contentious Deaths in the United Kingdom

This article examines recent United Kingdom government proposals for secret inquests, which, it is argued, are part of a general push for secrecy discernible across common law jurisdictions, and which include developments such as increased recourse to sensitive evidence in forensic settings and the normalization of intelligence‐led policing. While the push for secrecy is justified by national security claims, the article shows that in cases of contentious death involving police, the issue is less about national security and more about the use of intercept evidence, covert surveillance, and intelligence‐led policing, all of which have implications for police trust, accountability, and reputation management.     

How ‘Vulnerable’ young people describe their interactions with police: building positive pathways to drug diversion and treatment in Sydney and Melbourne,Australia

This article describes findings from an Australian mixed method study, and explores young people’s perceptions of police. We focus on the nature of positive experiences, and the potential for positive encounters to improve outcomes for young offenders affected by problematic alcohol and other drug use. Buber’s concept of dialogical interaction is used to articulate the components of a positive experience and how this increases police legitimacy. In doing so, we demonstrate that, despite negative experiences, young people can be sympathetic to the tensions of modern policing, and can envisage police as positive role models. As such, police can enhance outcomes for ‘vulnerable’ young people through more respectful interactions.     

Theorizing police response to domestic violence in the Singaporean context: Police subculture revisited

This article focuses on the well documented, yet potentially contested concept of rank-and-file police subculture to conceptualize police response to situations of domestic violence in Singapore. It argues that the utility of the concept to explaining police behavior is often undermined by an all-powerful, homogenous, and deterministic conception of it that fails to take into account the value of agency in police decision-making and the range of differentiated police response in situations of domestic violence. Through reviewing the literature on police response to domestic violence, this study called for the need to rework the concept of police subculture by treating it as having a relationship with, and response to, the structural conditions of policing, while retaining a conception of the active role played by street-level officers in instituting a situational practice. Using Pierre Bourdieu's relational concepts of ‘habitus’ and ‘field,’ designating the cultural dispositions of police subculture and structural conditions of policing respectively, the study attempted to reconceptualize the problem of policing domestic violence with reference to the Singaporean context.     

Force,Stress, and Decision-Making Within the Belgian Police: the Impact of Stressful Situations on Police Decision-Making

Stress and fear are inevitable aspects of the police job and may have a large impact on police officers’ decision-making process. Many studies have explored how stress and fear may influence assessments of police officers, especially with regard to the use of force. This article aims to contribute to this research domain by reporting the findings from two empirical studies among Belgian police officers: a quantitative study of police officers’ attitudes towards and experiences with the use of force and a qualitative study on the influence of stress and emotions on officers’ decision-making and assessment abilities and accuracy of shooting. Both studies confirmed that stress and fear are often present in Belgian police practice. One of the main findings is that Belgian police officers are anxious about the consequences of their actions because they know they will be held accountable for them. The pressure that results from this accountability can make it even more difficult for police officers to react to stressful situations. Therefore, we need to look for the right balance in this difficult position, by providing tools that support police officers in making daily decisions, and help them do their job as effectively as possible.     

Perceived Citizen Cooperation, Police Operational Philosophy, and Job Satisfaction on Support for Civilian Oversight of the Police in South Korea

While civilian oversight in matters pertaining to police accountability is commonly found in law enforcement agencies in Western countries, this concept is fairly new to many emerging democracies. This study examines the origins and development of citizen oversight of the police in South Korea. Using a sample consisting of 406 surveyed Korean police officers, this study further examines the effects of individual factors and organizational characteristics, such as police operational philosophy, citizen support, and job satisfaction, on officers’ perceptions of civilian oversight of the police. The findings suggest that, although South Korean police officers are generally ambivalent about the role of civilian oversight, there is a strong relationship between organizational characteristics and support for a civilian role in police oversight.     

Police Misconduct,Media Coverage,and Public Perceptions of Racial Profiling: An Experiment

The purpose of this study was: (1) to assess the impact of an incident of racial profiling on residents’ attitudes about profiling; and (2) to examine the effects of exposure to a video clip of deliberation about the incident on residents’ beliefs about the causes of profiling. All residents, White and minority, were less likely to believe that Chicago police officers engaged in profiling after the incident. These findings suggest that attitudes about the prevalence of racial profiling are susceptible to the manner in which the media construct incidents of police misconduct. Exposure to the video clip was not related to differences in residents’ beliefs about the causes of profiling, but was related to differences in perceptions of the dangerousness of traffic stops. The findings highlight the need for more research on how media constructions of police misconduct influence attitudes about profiling and impact community–police relations.     

警察文化视野下警民关系的研究

我国正处于社会转轨时期,警民关系由于社会的转型也出现了一系列问题。从警察文化视角研究警民关系,有利于调整警察的价值观与增强群众的认同感,有利于警察体制的建设和执行,有利于警察形象的建设,有利于解决制度不能解决的问题。并从先进警察文化的内化与警察文化的创新两方面谈了警察文化视角解决警民关系的途径。先进警察文化的内化是营造良好的环境和宣传教育,并通过实践外化警察文化从而增强内化;警察文化的创新是要转变执法思想,加强文化强警的认识,通过制度化来稳固已有先进文化成果。     

基于视频的车速鉴定方法

视频监控设备的广泛应用为各类案件的侦破及取证提供了重要线索。利用高质量视频图像进行近景摄影测量、运动物体识别及跟踪的方法和技术已经较为成熟,但利用广角、低像素的视频监控录像定量描述车辆行驶速度的技术研究尚未开展。针对交通事故技术鉴定的实际需求,根据速度的一般计算方法和计算机视觉的基本原理,提出可以应用目前广泛使用的公共视频监控设备所拍摄的录像进行车辆速度计算的方法。     

Policing the deinstitutionalized mentally ill: Toward an understanding of its function

Although the police have long been recognized as a community health resource in the United States, this role has expanded significantly over the past several decades as a result of the deinstitutionalization movement. From a critical perspective, this article provides an analysis of the relationship between this enlarged police role and the current American socio-political order, in general, and the welfare state in particular. It is argued that in the course of handling the mentally ill the police carry out a number of functions for both the welfare state and the socio-political order, and in doing so, shore-up the social conditions which have inhibited the development of a positive, long-term care policy for the mentally ill. This article discusses three such functions and identifies an alternative social arrangement; one in which the police would not have to serve as a support for liberal-capitalism and its attendant inadequate welfare state.     

The sociopathic police personality: Is it a product of the “Rotten Apple” or the “Rotten Barrel?”

The “Rotten Apple” theory states that deviant police officers are those who psychological testing fails to screen out. This concept is favored by police administrators because it offers a quick and easy solution to police deviant behavior. However, there is a growing body of literature that suggests that it is the stressful occupation that is policing that is the fertile soil from which police deviant behavior springs otherwise known as the “Rotten Barrel” theory. This article shall explore police deviant behavior from the perspective that it is the “Rotten Barrel” that leads to police deviant behavior.     

论警务战术的理念

理念是学术界目前使用频率较高的一个概念。为了揭示警务战术理念的内涵,从词源学的角度分析了理念的含义。警务战术理念是对警务战术内在规律的认识的集中体现,同时也是对警务战术的看法和持有的基本的态度和观念,并通过警务战术的目标、要求、原则来实现。警务战术的目标就是为了实现执法安全,包括执法安全意识和警务程序意识两方面。警察战术原则指警察在警务活动中必须依法施策、规范设计;加一评估、防控为先;心态平和、弹性处变。