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Overview of forensic outpatients on the Medical Treatment and Supervision Act in Japan

Bibliographic Data

ID21458999
AuthorsKumiko Ando (St. Marianna University School of Medicine, corresponding author), Kanako Nakazawa (University of Tsukuba), Shota Matsunaga (0009-0009-9814-8436, Tokyo Women's Medical University), Takayuki Okada (0000-0002-2039-8015, Tokyo Medical and Dental University)
Year2025
Volume100
Pages102074
Publication date2025-05-01
Open AccessYes
TypeARTICLE
VenueInternational Journal of Law and Psychiatry (JOURNAL)
Journal identifiersISSN: 0160-2527 • E-ISSN: 1873-6386
PublisherElsevier BV (PUBLISHER)
DOI10.1016/j.ijlp.2025.102074
PMID39970563
OpenAlexW4407687713
LanguageEN
References cited16

In Japan, the Medical Treatment and Supervision Act (MTSA) has been in effect since 2005, and a support system has been established for those found not guilty by reason of insanity (NGRIs). Under this law, the reintegration of the subjects into society is underway. This paper summarizes the status of forensic outpatients during the seven years after its enactment. Information on forensic outpatients was obtained from 224 designated outpatient medical institutions under the law between 2005 and 2011, the period after the law's implementation. Information on demographic factors, psychiatric status, forensic background, clinical treatment history, and social service utilization was collected. Among the 690 outpatients, the most common diagnosis was F2 (Schizophrenia) (76.4 %), and the most common criminal offense was homicide/attempted homicide (28.8 %). Among the outpatients, 46.2 % developed problematic behavior during treatment, and suicidal behavior was observed in 6.0 % of the patients. Since problematic behaviors during treatment, including suicidal behavior, have been observed, it is necessary to expand support, including the development of proper relationships with patients and the early stages of treatment to promote the integration of forensic patients into society

Forensic psychiatry · Forensic science · Medical emergency · Poison control · Psychiatry · Healthcare Decision-Making and Restraints · Human Factors and Ergonomics · Medicine · Mental Health and Psychiatry · Psychology · Psychopathy, Forensic Psychiatry, Sexual Offending

  • Risk Factors for Problematic Behaviors among Forensic Outpatients under the Medical Treatment and Supervision Act in Japan

    Open Access•Kumiko Ando, Takahiro Soshi et al.•Frontiers in Psychiatry•2016

Highly citedNo

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