Koichi Hamai

Koichi Hamai
Ryukoku University · Department of Law Corrections & Rehabilitation Center

Professor

About

33
Publications
22,773
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212
Citations
Introduction
His research focus has been in crime & criminal justice statistics, and the rehabilitation of offenders. He was responsible for carrying out an international victimization survey of Japan in 2000. He has been the author of about 90 national and international publications. He has been an Executive Board Member since 2003 and was the editor in chief of the Japanese Journal of Sociological Criminology between 2005 and 2011. He has been invited as a keynote speaker or a plenary speaker by the Asian Criminological Society and the Australian and New Zealand Society of Criminology. He held a position as professor of the Law School for 12 years and currently holds a position as professor of the Faculty of Law and the director of the Corrections and Rehabilitation Center at Ryukoku University.

Publications

Publications (33)
Presentation
Full-text available
INTERNATIONAL HUMAN RIGHTS LAW LECTURES BY JAPANESE SCHOLARS AND EXPERTS – Council of Europe
Method
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Field survey period:2016.10.1 〜11.27 Survey company:Nippon Research Centre Subjects:Women between 18〜74 in Kansai region from 6 prefectures, 2,448 Sampling:Stratified two-stage extraction method CATI with tablets 741 responses (30.3%)
Article
Full-text available
Despite its post-war reputation as one of the most crime-free industrialized countries, since the late 1990s, recorded crime in Japan has risen rapidly, while the clearance rate has correspondingly fallen. It also appears that the Japanese public has become more fearful about their public safety. Their faith in the criminal justice system’s effecti...
Chapter
Full-text available
This chapter first locates post World War II Japanese homicide (satsujin) within the global and the Asian context. It then summarises the historical trends of homicide in Japan, before outlining the main explanations offered by both Japanese and foreign commentators on the reasons for Japan's specific, though not unique, homicide profile.
Presentation
Japan has enjoyed its post-war reputation as one of the most crime-free countries. However, in response to increase of victim support movements, media reports have created the moral panic about increase of crime. Japan has begun not only to take a more punitive sentencing approach, but has also widened and thinned its criminal justice net since 199...
Presentation
The number of offenders arrested by the police has been generally decreasing since the 1960s in Japan. The number of homicides reported in Japan has constantly decreased since 1955, and the five years from 2009 to 2013 constituted a period of reduction to an all-time low of 939 in 2013, while the clearance rate in 2012 remained stable and high, at...
Chapter
Full-text available
This entry first presents a critical summary of historical trends in crime and the current crime picture in Japan, then outlines the key elements of the criminal justice process one by one, in order of their occurrence: policing and prosecutions; courts; and punishment. Evidence on Japan's continued use of the death penalty, life sentences, and rec...
Presentation
The number of offenders arrested by the police has been generally decreasing since the 1960s in Japan. The most obvious explanation lies in demographic change. The number of offenses in Japan has been declining in general in accordance with a declining birthrate. In 2012, there were 35.7% fewer young people between 10 and 19 than 1990. On the othe...
Article
The purpose of this study of public cooperation with the police in Japan is twofold: First, it draws on the legitimacy model to investigate the causal relationship between trust in and cooperation with the police in Japan, and explores how well the model fits the sample data. Second, it seeks to identify the determinant factors of public cooperatio...
Presentation
First of all, the number of crimes in Japan has been declining in general due to the aging population with a declining birthrate. Crimes both property crimes and violent crimes are normally committed by young people. The fewer young people we have in the society, the fewer crimes we have. On the other hand, if we pay attention to the changes in th...
Article
Since the middle of the 1990s, penal code offences reported to the police have risen sharply, hitting a peak in 2002 and declining sharply thereafter. The number of reported offences is now half of what it was 10 years ago. This paper will discuss the factors affecting the sharp decline in penal code offenses reported to the police by focusing on s...
Article
Crime in Japan: Paradise Lost? Dag Leonardsen. This book is ambitious. Not only is it one of a small but growing number of books about crime in Japan which is written in English, but also it draws together issues around criminal justice policy, economics, culture and mental health as pertinent factors in rising crime and rising punitiveness in Jap...
Article
Full-text available
The primary purpose of this paper is to study the effects of socio-demographic changes in population in Japan, that is, the so-called aging society with a declining birthrate, on crime and the criminal justice system. The author discusses various problems in the Japanese criminal justice system relating to the above changes. Finally, the author adv...
Article
Although Japan continues to be one of the most crime-free economically advanced countries, a Japanese Cabinet Office survey of public attitude showed that the proportion of the public that thought the social security situation was getting worse had doubled in the last decade. Firstly, we have examined Japanese crime statistics in relation to violen...
Article
Full-text available
Obwohl Japan ein wirtschaftlich fortgeschrittenes Land mit wenigen Verbrechen ist, zeigte eine Umfrage des japanischen Kabinetts, dass sich der Anteil der Öffentlichkeit, die ein Schwinden sozialer Sicherheit beklagt, in den letzten zehn Jahren verdoppelt hat. Wir haben japanische Kriminalstatistiken von Gewaltverbrechen untersucht und uns gefragt,...
Article
Full-text available
This paper compares how Japan and England deal with the problem of juvenile offending. It contrasts English youth justice, which has recently moved towards centralized control and low local visibility, with Japanese youth justice, which is characterized by the integration of law enforcement with informal social control and a strong emphasis on loca...
Article
While most of the countries in Western Europe abolished the death penalty in the years from 1948 to 1981 before the rise of the victims' rights movement, Japan which dose not need the death penalty most, has missed the timing.
Article
Full-text available
Despite its post-war reputation as one of the most crime-free industrialized countries Japan has a rapidly increasing recorded crime rate and corresponding falling clearance rate in police statistics. In 1998, only 19 per cent of the Japanese public thought crime was getting worse, but by 2005 this had increased to 48 per cent. The first part of th...
Article
Japan has enjoyed a reputation for being one of the most crime-free economically advanced countries. However, since the late 1990s, in light of the constantly increasing crime rate and falling clearance rate in police statistics, it appears that the Japanese public has lost confidence in its safety, and in the effectiveness of the criminal justice...
Article
Full-text available
Although Japan traditionally enjoyed a reputation for being one of the most crime-free economically advanced countries in the world, since the late 1990s its crime rates have increased and clear up rate have dropped. It now appears that the Japanese public has lost confidence in the effectiveness of the criminal justice system and is more anxious a...
Article
Full-text available
Although Japan continues to be one of the most crime-free economically advanced countries, crime was a crucial issue in the 2003 general election (for the first time since WWII) and a 2004 survey showed that the proportion of the public that thought crime was getting worse had doubled since 1998. Here, we have examined recorded crime and victim sur...
Book
紹介 Whilst they retain a recognisable common core, probation systems round the world are enormously varied, and many are in a state of rapid change. Probation Round the World is a study of probation in ten countries, ranging from the well-resourced and heavily professionalised services of Britain and the old Commonwealth to the reliance on lay-super...
Book
In the past, the UN dealt with the problems of mentally ill offenders through specific provisions contained in the Standard Minimum Rules for the Treatment of Prisoners. In 1986, the UN issued a report on protecting the rights of the mentally ill, preventing psychiatric abuses, and improving institutional mental health and medical practices. The cu...

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Projects

Projects (4)
Project
FRA, European Agency for Fundamental Rights, conducted an EU wide survey in 2014, the first of its kind, on violence against women across the 28 Member States of the European Union (EU). It is based on interviews with 42,000 women across the EU, who were asked about their experiences of physical, sexual and psychological violence, including incidents of intimate partner violence (‘domestic violence’). We conducted the same survey in Japan in 2016 in collaboration with FRA.