# Act No. 39 of 2025: Act Partially Amending the Code of Criminal Procedure, etc. to Respond to Advances in Information and Communications Technology, etc.

This is the Markdown twin of https://japanlaw.org/en/acts/507AC0000000039. 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.

Every law on japanlaw.org that Act No. 39 of 2025 amends, and when each change takes effect; promulgated 23 May 2025.

- Number: 令和七年法律第三十九号 (令和7年法律第39号), Act No. 39 of 2025
- Title: Act Partially Amending the Code of Criminal Procedure, etc. to Respond to Advances in Information and Communications Technology, etc. (情報通信技術の進展等に対応するための刑事訴訟法等の一部を改正する法律)
- Promulgated: 23 May 2025
- In Japanese: https://japanlaw.org/ja/acts/507AC0000000039
- Changes to Japanese law, by date: https://japanlaw.org/en/changes (as Markdown: https://japanlaw.org/md/en/changes)

## Code of Civil Procedure (民事訴訟法)

https://japanlaw.org/en/code-of-civil-procedure

- 23 May 2025: Since replaced.
- 21 May 2026: Since replaced.

## Immigration Control and Refugee Recognition Act (出入国管理及び難民認定法)

https://japanlaw.org/en/immigration-control-act

- 23 May 2025: Since replaced.
- 21 May 2026: Since replaced.
- 14 June 2026: Since replaced.
- By 31 March 2027: Not yet in force. 2 provisions changed. What it changes: https://japanlaw.org/en/immigration-control-act/amendments/20270331_507AC0000000039; the law as amended, in Markdown: https://japanlaw.org/md/en/immigration-control-act/amendments/20270331_507AC0000000039/text

## Passport Act (旅券法)

https://japanlaw.org/en/passport-act

- 23 May 2025: Since replaced.
- 12 June 2025: Since replaced.

## Penal Code (刑法)

https://japanlaw.org/en/penal-code

- 23 May 2025: Since replaced.
- 12 June 2025: Since replaced.
- 21 May 2026: In force. The law in force: https://japanlaw.org/en/penal-code; in Markdown: https://japanlaw.org/md/en/penal-code

## Act on the Punishment of Acts of Photographing Sexual Poses, etc. and the Erasure, etc. of Electronic or Magnetic Records of Images of Sexual Poses Recorded on Seized Articles (性的な姿態を撮影する行為等の処罰及び押収物に記録された性的な姿態の影像に係る電磁的記録の消去等に関する法律)

https://japanlaw.org/en/sexual-image-filming-act

- 23 May 2025: Since replaced.
- 21 May 2026: In force. The law in force: https://japanlaw.org/en/sexual-image-filming-act; in Markdown: https://japanlaw.org/md/en/sexual-image-filming-act
- By 31 March 2027: Not yet in force. 6 provisions changed · 1 provision removed · 2 provisions in the supplementary provisions. What it changes: https://japanlaw.org/en/sexual-image-filming-act/amendments/20270331_507AC0000000039; the law as amended, in Markdown: https://japanlaw.org/md/en/sexual-image-filming-act/amendments/20270331_507AC0000000039/text

## Special Act on the Immigration Control of, inter alia, those who have lost Japanese Nationality pursuant to the Treaty of Peace with Japan (日本国との平和条約に基づき日本の国籍を離脱した者等の出入国管理に関する特例法)

https://japanlaw.org/en/special-act-on-immigration-control

- 23 May 2025: Since replaced.
- 21 May 2026: Since replaced.
- 14 June 2026: In force. The law in force: https://japanlaw.org/en/special-act-on-immigration-control; in Markdown: https://japanlaw.org/md/en/special-act-on-immigration-control

## Unfair Competition Prevention Act (不正競争防止法)

https://japanlaw.org/en/unfair-competition-prevention-act

- 23 May 2025: Since replaced.
- 12 June 2025: Since replaced.
- 21 May 2026: In force. The law in force: https://japanlaw.org/en/unfair-competition-prevention-act; in Markdown: https://japanlaw.org/md/en/unfair-competition-prevention-act
- By 31 March 2027: Not yet in force. 5 provisions changed · 4 provisions added. What it changes: https://japanlaw.org/en/unfair-competition-prevention-act/amendments/20270331_507AC0000000039; the law as amended, in Markdown: https://japanlaw.org/md/en/unfair-competition-prevention-act/amendments/20270331_507AC0000000039/text

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## Sources

- The dates and the amending law: e-Gov (Digital Agency) (7 records)
- English title of the amending law: Written for this site with AI
- English names of the laws: Japanese Law Translation, Ministry of Justice (6 records)
- English names of the laws: Written for this site with AI