# 刑事訴訟法 / Code of Criminal Procedure — 第十二条 (Supplementary Provisions, Article 12) This is the Markdown twin of https://japanlaw.org/ja/code-of-criminal-procedure/suppl-4071-91/art-12. 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: 第十二条 (Supplementary Provisions, Article 12)（刑事訴訟法の一部改正に伴う経過措置） — address `suppl-4071-91/art-12` - Text in force since: 2026-10-20 - URL (the page that opens at this provision): https://japanlaw.org/ja/code-of-criminal-procedure/suppl-4071-91/art-12 - 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. --- ### 第十二条（刑事訴訟法の一部改正に伴う経過措置） — Transitional Measures Accompanying the Partial Amendment of the Code of Criminal Procedure caption: machine translation, not official suppl-4071-91/art-12 · https://japanlaw.org/ja/code-of-criminal-procedure/suppl-4071-91/art-12 **第一項** この法律の施行前に犯したこの法律による改正前の刑法第四十条の規定を適用しない罪に当たる事件については、前条の規定による改正後の刑事訴訟法第二十八条の規定にかかわらず、なお従前の例による。 suppl-4071-91/art-12/par-1 · https://japanlaw.org/ja/code-of-criminal-procedure/suppl-4071-91/art-12/par-1 With regard to a case involving a crime committed before this Act comes into effect to which the provisions of Article 40 of the Penal Code prior to amendment by this Act do not apply, the provisions then in force continue to govern, notwithstanding the provisions of Article 28 of the Code of Criminal Procedure as amended by the provisions of the preceding Article. machine translation, not official --- ## Cites - suppl-4071-91/art-12/par-1: 刑事訴訟法第二十八条 → 刑事訴訟法 第二十八条 (Article 28), art-28 — https://japanlaw.org/ja/code-of-criminal-procedure/art-28 --- ## 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-20261106T054114-020, 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