Motorcycle ownership and injury in China

Background. China has made tremendous progress in its economic development in the past two decades. Accompanying this economic development has been an evident shift in the modes of transport, from walking and cycling to the use of motorcycles and, increasingly, four-wheel vehicles. Such changes are likely to have also produced changes in the patterns and numbers of road traffic injuries, including increases in motorcycle injuries. However, such changes have not been well documented. The work described in this paper sought, therefore, to document the changes in motorcycle ownership, motorcyclist mortality and injury rates in China since 1987.
Methods. National traffic ownership and injury data from 1987 to 2001 were obtained from the National Bureau for Traffic Administration. Additionally, traffic ownership and injury records from 1997 to 2001 were collected from local police offices from 20 counties in Guangxi Region. Population data were obtained from the national and county statistics bureaus. Motorcycle ownership, fatality and injury trends over time were calculated.
Results. Nationally, motorcycles accounted for 23.4% of all registered motor vehicles in 1987, increasing to 63.2% in 2001. Motorcyclist fatalities and injuries increased 5.5-fold and 9.3-fold, respectively, between 1987 and 2001. In 1987, 7.5% of all traffic fatalities and 8.8% of all traffic injuries were sustained by motorcyclists, with the corresponding proportions increasing to 18.9% and 22.8%, respectively, in 2001. The changing proportions of both traffic fatalities and injuries sustained by motorcyclists were positively correlated with the change in the proportion of motorcycles among all motor vehicles. In the 20 counties in Guangxi, motorcyclist fatality and injury rates also increased between 1997 and 2001. Moreover, these rates were considerably higher than the national rates.
Conclusions. Motorcyclist injury in China is a serious public health problem. Motorcyclist fatalities and injuries are likely to continue to increase unless appropriate intervention programmes are implemented.

A guide to interviewing children : essential skills for counsellors, police, lawyers and social workers

This book has been written by two people who really understand children. [They show how to] create opportunities to reduce the trauma of the interview and significantly improve the quality of the information obtained. Chief Constable A.J. Butler Gloucestershire Constabulary A few years ago, a Chief Justice said that it was unnecessary to educate lawyers and judges in the techniques of interviewing children because it was 'just common sense'. The authors show that successful interviewing requires much more than 'common sense'. Freda Briggs, Professor of Child Development, University of South Australia...an excellent book for students and professionals in forensic psychology, policing and social work.Helen Westcott, PhD, The Open UniversityIt is critical that children are interviewed properly in cases of suspected abuse or where the children may be witnesses to or victims of a crime. Poor questioning can upset the child further and contaminate evidence that may be needed in court. Interviewing Children is a practical guide to interviewing techniques for a range of professionals including welfare workers, psychologists, schoolteachers and counsellors, police officers and lawyers. Step by step, it outlines the key stages of an interview, and how to respond to the child's needs during an interview. It explains how to deal with children of different ages and from different backgrounds, and also how to work with their parents. Particular attention is paid to the sensitive issue of sexual abuse, and the problems created by multiple interviews.Clare Wilson lectures in the Department of Psychology at the University of Sydney. Martine Powell lectures in the School of Psychology at Deakin University. Both have trained police officers, social workers and legal professionals in interviewing techniques in Australia and the UK.------------------Full quotes to go on half-title page:This book has been written by two people who really understand children. In passing on their knowledge to professionals who engage with children in the interview room, they create opportunities to reduce the trauma of the interview and significantly improve the quality of the information obtained. Writing in a clear and fresh style, the authors have produced a book which is valuable as a point of reference, a day to day tool and as a training aid to develop skills.Chief Constable A.J. Butler Gloucestershire ConstabularyThis book should be read by all professionals who work with children and could findthemselves receiving disclosures of abuse. It is practical, easy to read and full of examples and hints. It should be a compulsory text for social work studen

'Marvin the Mouse'; can he assist police to elicit evidence from young children?

This study investigated the usefulness of a computer program designed to assess young children's understanding of words that may be relevant to an investigative interview about assault. Forty-one police officers conducted two interviews with five- to six-year-old children (one was conducted with the program and one without). The program's effectiveness was based on the interviewers' ratings of the usefulness of the program as well as three independent indices of interviewer-child rapport. Overall, the police officers perceived the program to be an extremely useful pre-interview assessment. However, the program had little impact on the officers' style of questioning and the nature of the children's responses. The implications of these findings are discussed.

Drugs and police

Discusses the corruption-cloud hanging over the Victoria police drug squad. What does it mean for criminal investigations and trials? And, speaking more generally, what is it about the drugs-trade and the way the law deals with it - that can lead law enforcers down the wrong path?

Prevention of suicide : police powers, parliamentary intent and judicial interpretation

While in most countries suicide is no longer a crime, it is also acknowledged that the state has an interest in the preservation of human life, prevention of suicide, and protection of vulnerable persons from harming themselves. In a civil, secular and democratic society, however, the public law principle of state protective powers has to be balanced against the private law principle of personal autonomy (personal self-determination). Under the doctrine of autonomy, competent adults of sound mind can make legally binding voluntary choices, including the so-called ‘death-choice’ (refusal of life-sustaining or life-prolonging treatment as well as suicide). To add to the complexity, whereas the powers of the state in relation to suicide and its prevention have been codified, the concepts of personal autonomy and personal liberty are grounded in common law. Stuart v Kirkland–Veenstra [2008] VSCA 32, which is at present being considered by the High Court of Australia, exemplifies tensions that arise in the suicide-prevention area of jurisprudence. This article explores powers and duties of police officers in relation to suicide prevention and the notion of mental illness by reference to the Kirkland–Veenstra case, the relevant statutory framework and the common law.

Children's conception of police authority when responding to requests for assistance

Children (five to six and seven to eight years old) were presented with scenarios in which various adults (a police officer, a teacher, and an unspecified adult) requested assistance from a child. Six scenarios were presented (two per adult) with half involving a reasonable request (requiring little effort from the child) and the others unreasonable. For each scenario, the participants stated: (i) whether the child in the story should comply with the adult's request, (ii) the reason for the compliance decision, (iii) the consequences of non-compliance, and (iv) the legitimacy of the adult's request. Compliance and perceived legitimacy of the request was highest for the police officer compared to the teacher, with both figures commanding greater compliance than the unspecified adult. Children's justifications suggested that the positive relationship between obedience and social status was due (albeit in part) to fear of punishment for non-compliance, particularly in the younger age group.

A qualitative examination of police officers' questioning of children about repeated events

For an offender to be convicted in relation to repeated child abuse, most jurisdictions require that each separate act be identified with reasonable precision with reference to time, place, or some other unique contextual detail (S v. R, 1989). The current study provided a qualitative examination of the way in which police officers assist children to identify and distinguish between occurrences of a repeated event. Field, as well as mock interviews (about an innocuous staged event) were examined, with child witnesses' ages ranging from 3 to 16 years. Overall, several problems in the questioning were highlighted. These included: over-reliance on specific questions, use of 'labels' for occurrences without inquiring as to whether these were unique, and frequent shifting of the focus between occurrences. The implications of these findings are discussed.

Children's perceptions of the role of police: a qualitative study

A qualitative methodology, using open-ended questions, was employed to explore the perceptions of 112 children regarding the role of police. The children, aged 5 to 6 and 7 to 8 years, were asked to comment on what police officers do when they go to work, what direct and indirect experiences they have had with the police, and the positive and negative aspects of being a police officer. The findings revealed that children emphasise the punitive role of police; very few children identified with non-punitive roles. This punitive theme was evident irrespective of the children's experiences, age, and whether they could recall television shows involving police. The practical implications of our findings for police relations with children, particularly in a forensic interview context, are discussed.

Distributed protocol for communications among underwater vehicles

Underwater surveying by swarms of autonomous underwater vehicles presents problems in communication among the robots. These problems involve the bandwidth, power consumption, timing, processing power, and other issues. This paper presents a novel approach to communicate and coordinate effectively among underwater vehicles to accomplish this task successfully. The proposed approach solves issues by reducing the number of hops to conserve power, while reducing computation time and bandwidth, effectively utilizing resources to reduce the load on each node. Finally, the simulation results are presented, in order to prove that the proposed approach improves efficiency and effectiveness in communicating among underwater vehicles.

Visual tracking of vehicles using multiresolution analysis and neural network

This paper describes the procedure for detection and tracking of a vehicle from an on-road image sequence taken by a monocular video capturing device in real time. The main objective of such a visual tracking system is to closely follow objects in each frame of a video stream, such that the object position as well as other geometric information are always known. In the tracking system described, the video capturing device is also moving. It is a challenge to detect and track a moving vehicle under a constantly changing environment coupled to real time video processing. The system suggested is robust to implement under different illuminating conditions by using the monocular video capturing device. The vehicle tracking algorithm is one of the most important modules in an autonomous vehicle system, not only it should be very accurate but also must have the safety of other vehicles, pedestrians, and the moving vehicle itself. In order to achieve this an algorithm of multi resolution technique based on Haar basis functions were used for the wavelet transform, where a combination of classification was carried out with the multilayer feed forward neural network. The classification is done in a reduced dimensional space, where principle component analysis (PCA) dimensional reduction technique has been applied to make the classification process much more efficient. The results show the effectiveness of the proposed methodology.