نتایج جستجو برای: national police data

تعداد نتایج: 2691864  

2012
John M. MacDonald Jonathan Klick Ben Grunwald

Research demonstrates that police reduce crime. The implication of this research for investment in a particular form of extra police services, those provided by private institutions, has not been rigorously examined. We capitalize on the discontinuity in police force size at the geographic boundary of a private university police department to estimate the effect of the extra police services on ...

2004
Jan Jordan JAN JORDAN

This article reviews issues concerning perceptions of women’s credibility in the context of police responses to sexual assault complainants. It is based on both quantitative and qualitative data drawn from detailed analysis of police rape and sexual assault files. Particular attention is paid to identification of the principal factors affecting police perceptions of rape complainants, addressin...

Journal: :Evaluation review 2000
M D White

Deadly force research typically does not distinguish between shootings by on-duty and off-duty police. This article uses Philadelphia police shooting data from two time periods (1970-1978 and 1987-1992) and a unique quasi-experimental design to examine the comparative effects upon on- and off-duty police shootings of an administrative policy that limited police shooting discretion but that did ...

متولیان, سید عباس, اکبری, محمد اسماعیل , مجدزاده, سید رضا , محمودی, محمود , هلاکویی نائینی, کورش ,

Background and Aim: Undercounting is a common problem in surveillance systems and registries. One of the procedures has been used for assessing sensitivity of a surveillance system or completeness of a registry is capture-recapture method.The objective of the present study was to estimate the number of deaths due to road traffic injuries applying capture-recapture method and using three data so...

2003
Allison T. Chappell Alex R. Piquero

Although numerous studies have attempted to understand the causes of various forms of police misconduct, there is still no clear theoretical explanation of police misbehavior. Akers’ social learning theory posits that peer associations, attitudes, reinforcement, and modeling are predictors of delinquency and crime in general. With this article, we seek to determine if the theory can account for...

2008
Jon Garland Michael Rowe

Incidents of football-related disorder are still evident at league and national team fixtures in England. This article assesses the levels and trends of this disorder, and examines the methods used to police hooliganism in the 1990s, including the use of closed-circuit television, private police and police intelligence gathering. Although it is acknowledged that these strategies have had some i...

Journal: :Accident Analysis & Prevention 1983

2010
James Pita Manish Jain Fernando Ordóñez Christopher Portway Milind Tambe Craig Western Praveen Paruchuri Sarit Kraus

Protecting national infrastructure such as airports, is a challenging task for police and security agencies around the world; a challenge that is exacerbated by the threat of terrorism. Such protection of these important locations includes, but is not limited to, tasks such as monitoring all entrances or inbound roads and checking inbound traffic. However, limited resources imply that it is typ...

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