- 1999 - 2000 ロンドン大学 客員研究員
- 1999 - 2000 London School of Economics and Political Science, Visiting Researcher
- 1998 - 2000 The University of Tokyo
- 1998 - 2000 Tokyo University, Visiting Professor
- 1996 - - 放送大学 客員教授
- 1996 - - University of The Air, Visiting Professor
- 1970 - 1994 (国立)科学警察所防犯少年部犯罪予防研究室長
- 1970 - 1994 NATIONAL RESEARCH Institute of Police Science, Chief of Crime Prevention Research Unit.
- Japan Women's University Faculty of Integrated Arts and Social Sciences, Department of Education Professor
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