# 刑事訴訟法 / Code of Criminal Procedure — 第四百二十一条 (Article 421)

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- 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: 第四百二十一条 (Article 421) — address `art-421`
- Text in force since: 2026-10-20
- URL (the page that opens at this provision): https://japanlaw.org/ja/code-of-criminal-procedure/art-421
- 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.

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### 第四百二十一条
<sup>art-421 · https://japanlaw.org/ja/code-of-criminal-procedure/art-421</sup>

  **第一項**  抗告は、即時抗告を除いては、何時でもこれをすることができる。但し、原決定を取り消しても実益がないようになつたときは、この限りでない。
  <sup>art-421/par-1 · https://japanlaw.org/ja/code-of-criminal-procedure/art-421/par-1</sup>
  A kokoku-appeal against a ruling, except an immediate appeal, may be filed at any time; provided, however, that this shall not apply when no actual benefit would be gained even if the original ruling were rescinded.
  <sup>Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "A kokoku-appeal against a ruling, except an immediate appeal, may be filed at any time; provided, however, that this shall not apply when no disadvantage would actually be caused even if the original ruling were rescinded." — https://www.japaneselawtranslation.go.jp/en/laws/view/3740/tb</sup>

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## Sources

- claude-opus-5-5 — Corrections to the Ministry of Justice's English of the Code of Criminal Procedure, written 2026-11-06
- 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 (刑事訴訟法), Article 421, paragraph (1) — the Ministry of Justice's English as printed (https://www.japaneselawtranslation.go.jp/en/laws/view/3740/tb), 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
- This site's parser, version 225 — 刑事訴訟法 — structure, counts, cross-references and defined terms, computed 2026-11-06