# 刑事訴訟法 / Code of Criminal Procedure — 第四条 (Supplementary Provisions, Article 4) This is the Markdown twin of https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-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: 刑事訴訟法 (Code of Criminal Procedure), 昭和二十三年法律第百三十一号 - English title "Code of Criminal Procedure": 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: 第四条 (Supplementary Provisions, Article 4) — address `suppl-4281-54/art-4` - Text in force since: 2026-10-20 - URL (the page that opens at this provision): https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-4 - e-Gov law ID: 323AC0000000131 — never renamed. A permanent link, `/l/{lawId}/{address}` on this site, redirects to the page. - Every provision below carries its address and its URL 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. --- ### 第四条 suppl-4281-54/art-4 · https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-4 **第一項** 司法警察員は、附則第一条第三号に掲げる規定の施行の際現に逮捕されている被疑者（第三号施行日前に検察官に送致する手続をした者を除く。）に対し、速やかに、第一条による改正後の法第二百三条第三項に規定する事項を教示しなければならない。ただし、被疑者に弁護人があるとき又は被疑者が釈放されたときは、この限りでない。 suppl-4281-54/art-4/par-1 · https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-4/par-1 A judicial police officer must promptly inform a suspect who, at the time the provisions set forth in Article 1, item (iii) of the Supplementary Provisions come into effect, is actually arrested (excluding a person for whom the procedure of referral to a public prosecutor was carried out before the item (iii) Effective Date) of the matters prescribed in Article 203, paragraph (3) of the Code as Amended by Article 1; provided, however, that this does not apply if the suspect has a defense counsel or the suspect is released. machine translation, not official **第二項** 検察官は、附則第一条第三号に掲げる規定の施行の際現に逮捕されている被疑者（前項に規定する被疑者を除く。）に対し、速やかに、第一条による改正後の法第二百四条第二項に規定する事項を教示しなければならない。ただし、被疑者に弁護人があるとき又は被疑者が釈放されたときは、この限りでない。 suppl-4281-54/art-4/par-2 · https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-4/par-2 A public prosecutor must promptly inform a suspect who, at the time the provisions set forth in Article 1, item (iii) of the Supplementary Provisions come into effect, is actually arrested (excluding the suspect prescribed in the preceding paragraph) of the matters prescribed in Article 204, paragraph (2) of the Code as Amended by Article 1; provided, however, that this does not apply if the suspect has a defense counsel or the suspect is released. machine translation, not official **第三項** 検察官は、附則第一条第三号に掲げる規定の施行の際現に第一条による改正後の法第三十七条の二第一項に規定する事件について勾留されている被疑者に対し、速やかに、弁護士、弁護士法人又は弁護士会を指定して弁護人の選任を申し出ることができる旨及びその申出先を教示しなければならない。ただし、被疑者に弁護人があるとき又は被疑者が釈放されたときは、この限りでない。 suppl-4281-54/art-4/par-3 · https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-4/par-3 A public prosecutor must promptly inform a suspect who, at the time the provisions set forth in Article 1, item (iii) of the Supplementary Provisions come into effect, is actually detained in a case prescribed in Article 37-2, paragraph (1) of the Code as Amended by Article 1 that the suspect may make a request for appointment of a defense counsel specifying an attorney, a legal professional corporation or a bar association, and of the person to which the request must be made; provided, however, that this does not apply if the suspect has a defense counsel or the suspect is released. machine translation, not official **第四項** 検察官は、附則第一条第三号に掲げる規定の施行の際現に勾留されている被疑者（前項に規定する被疑者を除く。）に対し、速やかに、弁護人を選任することができる旨を告げるとともに、弁護士、弁護士法人又は弁護士会を指定して弁護人の選任を申し出ることができる旨及びその申出先を教示しなければならない。ただし、被疑者に弁護人があるとき又は被疑者が釈放されたときは、この限りでない。 suppl-4281-54/art-4/par-4 · https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-4/par-4 A public prosecutor must promptly notify a suspect who, at the time the provisions set forth in Article 1, item (iii) of the Supplementary Provisions come into effect, is actually detained (excluding the suspect prescribed in the preceding paragraph) that the suspect may appoint a defense counsel, and inform the suspect that the suspect may make a request for appointment of a defense counsel specifying an attorney, a legal professional corporation or a bar association, and of the person to which the request must be made; provided, however, that this does not apply if the suspect has a defense counsel or the suspect is released. machine translation, not official --- ## Cites - suppl-4281-54/art-4/par-1: 附則第一条第三号 → 刑事訴訟法 附則第一条第一項第三号 (Supplementary Provisions, Article 1, paragraph (1), item (iii)), suppl-4281-54/art-1/par-1/item-3 — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-1/par-1/item-3 - suppl-4281-54/art-4/par-1: 第一条による改正後の法第二百三条第三項 → 刑事訴訟法 第二百三条第三項 (Article 203, paragraph (3)), art-203/par-3 — https://japanlaw.org/en/code-of-criminal-procedure/art-203/par-3 - suppl-4281-54/art-4/par-2: 附則第一条第三号 → 刑事訴訟法 附則第一条第一項第三号 (Supplementary Provisions, Article 1, paragraph (1), item (iii)), suppl-4281-54/art-1/par-1/item-3 — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-1/par-1/item-3 - suppl-4281-54/art-4/par-2: 前項 → 刑事訴訟法 附則第四条第一項 (Supplementary Provisions, Article 4, paragraph (1)), suppl-4281-54/art-4/par-1 — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-4/par-1 - suppl-4281-54/art-4/par-2: 第一条による改正後の法第二百四条第二項 → 刑事訴訟法 第二百四条第二項 (Article 204, paragraph (2)), art-204/par-2 — https://japanlaw.org/en/code-of-criminal-procedure/art-204/par-2 - suppl-4281-54/art-4/par-3: 附則第一条第三号 → 刑事訴訟法 附則第一条第一項第三号 (Supplementary Provisions, Article 1, paragraph (1), item (iii)), suppl-4281-54/art-1/par-1/item-3 — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-1/par-1/item-3 - suppl-4281-54/art-4/par-3: 第一条による改正後の法第三十七条の二第一項 → 刑事訴訟法 第三十七条の二第一項 (Article 37-2, paragraph (1)), art-37-2/par-1 — https://japanlaw.org/en/code-of-criminal-procedure/art-37-2/par-1 - suppl-4281-54/art-4/par-4: 附則第一条第三号 → 刑事訴訟法 附則第一条第一項第三号 (Supplementary Provisions, Article 1, paragraph (1), item (iii)), suppl-4281-54/art-1/par-1/item-3 — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-1/par-1/item-3 - suppl-4281-54/art-4/par-4: 前項 → 刑事訴訟法 附則第四条第三項 (Supplementary Provisions, Article 4, paragraph (3)), suppl-4281-54/art-4/par-3 — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-4/par-3 ## Cited by 6 provisions cite this one. No official source publishes this direction. - 刑事訴訟法 附則第一条第一項第三号（施行期日） — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-1/par-1/item-3 - 刑事訴訟法 附則第四条第二項 — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-4/par-2 - 刑事訴訟法 附則第四条第四項 — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-4/par-4 - 刑事訴訟法 附則第五条第二項 — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-5/par-2 - 刑事訴訟法 附則第五条第四項 — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-5/par-4 - 刑事訴訟法 附則第五条第六項 — https://japanlaw.org/en/code-of-criminal-procedure/suppl-4281-54/art-5/par-6 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 刑事訴訟法 — the text in force from 2026-10-20 (https://laws.e-gov.go.jp/law/323AC0000000131/20261020_508AC0000000067), retrieved 2026-11-06 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Code of Criminal Procedure — Ministry of Justice translation (part 1 of 2) (https://www.japaneselawtranslation.go.jp/en/laws/view/3739/tb), retrieved 2026-11-06 - claude-sonnet-5-5 — Machine translation, batch code-of-criminal-procedure-20261106T054114-022, translated 2026-11-06 - This site's parser, version 225 — 刑事訴訟法 — structure, counts, cross-references and defined terms, computed 2026-11-06