# 刑事訴訟法 / Code of Criminal Procedure — 第九条 (Article 9)

This is the Markdown twin of https://japanlaw.org/ja/code-of-criminal-procedure/art-9. 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: 第九条 (Article 9) — address `art-9`
- Text in force since: 2026-10-20
- URL (the page that opens at this provision): https://japanlaw.org/ja/code-of-criminal-procedure/art-9
- 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.

---

### 第九条
<sup>art-9 · https://japanlaw.org/ja/code-of-criminal-procedure/art-9</sup>

  **第一項**  数個の事件は、左の場合に関連するものとする。
  <sup>art-9/par-1 · https://japanlaw.org/ja/code-of-criminal-procedure/art-9/par-1</sup>
  Two or more cases are deemed to be related when:
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **一**  一人が数罪を犯したとき。
    <sup>art-9/par-1/item-1 · https://japanlaw.org/ja/code-of-criminal-procedure/art-9/par-1/item-1</sup>
    one person has committed several crimes;
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **二**  数人が共に同一又は別個の罪を犯したとき。
    <sup>art-9/par-1/item-2 · https://japanlaw.org/ja/code-of-criminal-procedure/art-9/par-1/item-2</sup>
    several persons have committed the same crime or several separate crimes together;
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **三**  数人が通謀して各別に罪を犯したとき。
    <sup>art-9/par-1/item-3 · https://japanlaw.org/ja/code-of-criminal-procedure/art-9/par-1/item-3</sup>
    several persons have conspired with each other, and each of them has committed crimes separately.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **第二項**  犯人蔵匿の罪、証憑湮滅の罪、偽証の罪、虚偽の鑑定通訳の罪及び贓物に関する罪とその本犯の罪とは、共に犯したものとみなす。
  <sup>art-9/par-2 · https://japanlaw.org/ja/code-of-criminal-procedure/art-9/par-2</sup>
  The crimes of harboring criminals, tampering with evidence, perjury, giving false expert evidence or interpretation and crimes concerning property obtained through a property crime will be deemed to have been committed together with a crime committed by the principal offender.
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

---

## 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
- This site's parser, version 225 — 刑事訴訟法 — structure, counts, cross-references and defined terms, computed 2026-11-06
