White Paper on Crime 2020 Part7/Chapter2/Section1
The questionnaire survey was conducted during the period from July 3 to August 21, 2017 (extended to November 30 for females), targeting newly sentenced inmates of penal institutions (excluding medical prisons and branch detention houses) across Japan who were sentenced to imprisonment with work for violations of the Stimulants Control Act. Inmates subject to analysis were limited to respondents who had experiences of personally using stimulants.
The number of inmates subject to analysis was 699 (462 males and 237 females). Their average age was 43.5, and 74.1% of them were reimprisoned. 57.3% were unemployed, 73.4% were unmarried, divorced or bereaved, and 7.2% were members of organized crime groups.