# 少年法 / Juveniles Act — 第十七条の四 (Article 17-4) This is the Markdown twin of https://japanlaw.org/ja/juvenile-act/art-17-4. Every law, and how to address a provision: https://japanlaw.org/llms.txt. The same laws as MCP tools (no sign-in): https://japanlaw.org/mcp. - Law: 少年法 (Juveniles Act), 昭和二十三年法律第百六十八号 - English title "Juveniles Act": Ministry of Justice translation - Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say. - Provision: 第十七条の四 (Article 17-4)（少年鑑別所送致の場合の仮収容） — address `art-17-4` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/ja/juvenile-act/art-17-4 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/323AC0000000168/art-17-4 - Every provision below carries its address and both URLs on the line under it. - Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below. Only the Japanese as published by the government has legal effect; the text below is a copy of it. Every English rendering below is a translation and says which kind: the Ministry of Justice's translation, or this site's machine translation, whose model and date the Sources list names. They are never merged and never substituted for one another. --- ### 第十七条の四（少年鑑別所送致の場合の仮収容） — (Provisional Detention in Case of Referral to a Juvenile Classification Home) caption: Ministry of Justice translation — Japanese Law Translation Database System art-17-4 · https://japanlaw.org/ja/juvenile-act/art-17-4 · https://japanlaw.org/l/323AC0000000168/art-17-4 **第一項** 家庭裁判所は、第十七条第一項第二号の措置をとつた場合において、直ちに少年鑑別所に収容することが著しく困難であると認める事情があるときは、決定をもつて、少年を仮に最寄りの少年院又は刑事施設の特に区別した場所に収容することができる。ただし、その期間は、収容した時から七十二時間を超えることができない。 art-17-4/par-1 · https://japanlaw.org/ja/juvenile-act/art-17-4/par-1 · https://japanlaw.org/l/323AC0000000168/art-17-4/par-1 If there are circumstances under which immediate custody in a juvenile classification home is found extremely difficult, following the implementation of the measures prescribed in Article 17, paragraph (1), item (ii), the family court may, by a ruling, provisionally detain the juvenile to the nearest juvenile training school or to a specially separated place inside the nearest penal institution; provided, however, that the period must not exceed 72 hours from commencement of detention. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 裁判長は、急速を要する場合には、前項の処分をし、又は合議体の構成員にこれをさせることができる。 art-17-4/par-2 · https://japanlaw.org/ja/juvenile-act/art-17-4/par-2 · https://japanlaw.org/l/323AC0000000168/art-17-4/par-2 In case of an emergency, the presiding judge may take the dispositions stated in the preceding paragraph or have a member from a panel of judges do it. Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "In case of an emergency, the presiding judge may appropriate the dispositions stated in the preceding paragraph or have a member from a panel of judges do it." — https://www.japaneselawtranslation.go.jp/en/laws/view/4827/tb **第三項** 第一項の規定による収容の期間は、これを第十七条第一項第二号の措置により少年鑑別所に収容した期間とみなし、同条第三項の期間は、少年院又は刑事施設に収容した日から、これを起算する。 art-17-4/par-3 · https://japanlaw.org/ja/juvenile-act/art-17-4/par-3 · https://japanlaw.org/l/323AC0000000168/art-17-4/par-3 The period of detention pursuant to the provisions of paragraph (1) is deemed to be the period of detention in a juvenile classification home by the measures prescribed in item (ii) of paragraph (1) of Article 17; the period prescribed in paragraph (3) of that Article is to begin from the day of detention in the juvenile training school or penal institution. Ministry of Justice translation — Japanese Law Translation Database System **第四項** 裁判官が第四十三条第一項の請求のあつた事件につき、第一項の収容をした場合において、事件が家庭裁判所に送致されたときは、その収容は、これを第一項の規定による収容とみなす。 art-17-4/par-4 · https://japanlaw.org/ja/juvenile-act/art-17-4/par-4 · https://japanlaw.org/l/323AC0000000168/art-17-4/par-4 If the judge detained a juvenile pursuant to paragraph (1) upon request prescribed in the provisions of Article 43, paragraph (1), the detention is deemed to be the detention prescribed in paragraph (1) if the case is subsequently referred to the family court. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-17-4/par-1: 第十七条第一項第二号 → 少年法 第十七条第一項第二号 (Article 17, paragraph (1), item (ii)), art-17/par-1/item-2 — https://japanlaw.org/ja/juvenile-act/art-17/par-1/item-2 · https://japanlaw.org/l/323AC0000000168/art-17/par-1/item-2 - art-17-4/par-2: 前項 → 少年法 第十七条の四第一項 (Article 17-4, paragraph (1)), art-17-4/par-1 — https://japanlaw.org/ja/juvenile-act/art-17-4/par-1 · https://japanlaw.org/l/323AC0000000168/art-17-4/par-1 - art-17-4/par-3: 第一項 → 少年法 第十七条の四第一項 (Article 17-4, paragraph (1)), art-17-4/par-1 — https://japanlaw.org/ja/juvenile-act/art-17-4/par-1 · https://japanlaw.org/l/323AC0000000168/art-17-4/par-1 - art-17-4/par-3: 第十七条第一項第二号 → 少年法 第十七条第一項第二号 (Article 17, paragraph (1), item (ii)), art-17/par-1/item-2 — https://japanlaw.org/ja/juvenile-act/art-17/par-1/item-2 · https://japanlaw.org/l/323AC0000000168/art-17/par-1/item-2 - art-17-4/par-3: 同条第三項 → 少年法 第十七条第三項 (Article 17, paragraph (3)), art-17/par-3 — https://japanlaw.org/ja/juvenile-act/art-17/par-3 · https://japanlaw.org/l/323AC0000000168/art-17/par-3 - art-17-4/par-4: 第四十三条第一項 → 少年法 第四十三条第一項 (Article 43, paragraph (1)), art-43/par-1 — https://japanlaw.org/ja/juvenile-act/art-43/par-1 · https://japanlaw.org/l/323AC0000000168/art-43/par-1 - art-17-4/par-4: 第一項 → 少年法 第十七条の四第一項 (Article 17-4, paragraph (1)), art-17-4/par-1 — https://japanlaw.org/ja/juvenile-act/art-17-4/par-1 · https://japanlaw.org/l/323AC0000000168/art-17-4/par-1 ## Cited by 5 provisions cite this one. No official source publishes this direction. - 少年法 第十七条の四第二項（少年鑑別所送致の場合の仮収容） — https://japanlaw.org/ja/juvenile-act/art-17-4/par-2 · https://japanlaw.org/l/323AC0000000168/art-17-4/par-2 - 少年法 第十七条の四第三項（少年鑑別所送致の場合の仮収容） — https://japanlaw.org/ja/juvenile-act/art-17-4/par-3 · https://japanlaw.org/l/323AC0000000168/art-17-4/par-3 - 少年法 第十七条の四第四項（少年鑑別所送致の場合の仮収容） — https://japanlaw.org/ja/juvenile-act/art-17-4/par-4 · https://japanlaw.org/l/323AC0000000168/art-17-4/par-4 - 少年法 第二十六条第一項（決定の執行） — https://japanlaw.org/ja/juvenile-act/art-26/par-1 · https://japanlaw.org/l/323AC0000000168/art-26/par-1 - 少年法 第二十六条第二項（決定の執行） — https://japanlaw.org/ja/juvenile-act/art-26/par-2 · https://japanlaw.org/l/323AC0000000168/art-26/par-2 --- ## Sources - claude-opus-5-5 — Corrections to the Ministry of Justice's English of the Juveniles Act, written 2026-11-03 - e-Gov 法令検索, Digital Agency (デジタル庁) — 少年法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/323AC0000000168/20260624_508AC0000000046), retrieved 2026-11-02 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Juveniles Act (少年法), Article 17-4, paragraph (2) — the Ministry of Justice's English as printed (https://www.japaneselawtranslation.go.jp/en/laws/view/4827/tb), retrieved 2026-11-02 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Juveniles Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4827/tb), retrieved 2026-11-02 - This site's parser, version 220 — 少年法 — structure, counts, cross-references and defined terms, computed 2026-11-02