# 刑事訴訟法 / Code of Criminal Procedure — 第四百一条 (Article 401)

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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: 第四百一条 (Article 401) — address `art-401`
- Text in force since: 2026-10-20
- URL (the page that opens at this provision): https://japanlaw.org/en/code-of-criminal-procedure/art-401
- 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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### 第四百一条
<sup>art-401 · https://japanlaw.org/en/code-of-criminal-procedure/art-401</sup>

  **第一項**  被告人の利益のため原判決を破棄する場合において、破棄の理由が控訴をした共同被告人に共通であるときは、その共同被告人のためにも原判決を破棄しなければならない。
  <sup>art-401/par-1 · https://japanlaw.org/en/code-of-criminal-procedure/art-401/par-1</sup>
  When the court of second instance reverses the judgment of the court of first instance in favor of the defendant and the grounds therefor are common to a codefendant who appealed, the court shall also reverse said judgment in favor of said codefendant.
  <sup>Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "When the court of second instance reverses the judgment of the court of first instance in favor of the accused and the grounds therefor are common to a codefendant who appealed, the court shall also reverse said judgment in favor of said codefendant." — 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 401, 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