# 不正競争防止法 / Unfair Competition Prevention Act — 第三十条 (Article 30)

- Law: 不正競争防止法 (Unfair Competition Prevention Act), 平成五年法律第四十七号
- English title "Unfair Competition Prevention Act": 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: 第三十条 (Article 30)（証拠開示の際の営業秘密の秘匿要請） — address `art-30`
- Text in force since: 2026-05-21
- URL (the page that opens at this provision): https://japanlaw.org/ja/unfair-competition-prevention-act/art-30
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/405AC0000000047/art-30
- Every provision below carries its address and both URLs 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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### 第三十条（証拠開示の際の営業秘密の秘匿要請） — (Requests for Protective Handling of Trade Secrets in the Disclosure of Evidence)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-30 · https://japanlaw.org/ja/unfair-competition-prevention-act/art-30 · https://japanlaw.org/l/405AC0000000047/art-30</sup>

**第一項**  検察官又は弁護人は、第二十三条第一項に規定する事件について、刑事訴訟法第二百九十九条第一項の規定により証拠書類又は証拠物を閲覧する機会を与えるに当たり、第二十三条第一項又は第三項に規定する営業秘密を構成する情報の全部又は一部を特定させることとなる事項が明らかにされることにより当該営業秘密に基づく被害者、被告人その他の者の事業活動に著しい支障を生ずるおそれがあると認めるときは、相手方に対し、その旨を告げ、当該事項が、犯罪の証明若しくは犯罪の捜査又は被告人の防御に関し必要がある場合を除き、関係者（被告人を含む。）に知られないようにすることを求めることができる。ただし、被告人に知られないようにすることを求めることについては、当該事項のうち起訴状に記載された事項以外のものに限る。
<sup>art-30/par-1 · https://japanlaw.org/ja/unfair-competition-prevention-act/art-30/par-1 · https://japanlaw.org/l/405AC0000000047/art-30/par-1</sup>
If the public prosecutor or defense counsel finds that, in providing an opportunity to inspect documentary or material evidence pursuant to the provisions of Article 299, paragraph (1) of the Code of Criminal Procedure in a case prescribed in Article 23, paragraph (1), there is a risk that disclosing a matter that would identify all or part of the information constituting trade secrets, as prescribed in Article 23, paragraph (1) or (3), would significantly hinder the business activities of the victim, the accused, or others based on those trade secrets, the public prosecutor or defense counsel may notify the opposing party of this risk and request that the opportunity be provided in such a way that the concerned parties (including the accused) do not learn of the matters, unless those matters are necessary for proving or investigating the offence, or for the defense of the accused; provided, however, that a request to provide the opportunity in such a way that the accused does not learn of the matters is limited solely to matters not written in the charging sheet.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

**第二項**  前項の規定は、検察官又は弁護人が刑事訴訟法第二編第三章第二節第一款第二目（同法第三百十六条の二十八第二項において準用する場合を含む。）の規定による証拠の開示をする場合について準用する。
<sup>art-30/par-2 · https://japanlaw.org/ja/unfair-competition-prevention-act/art-30/par-2 · https://japanlaw.org/l/405AC0000000047/art-30/par-2</sup>
The provisions of the preceding paragraph apply mutatis mutandis if the public prosecutor or defense counsel discloses evidence under the provisions of Part II, Chapter III, Section 2, Subsection 1, Division 2 of the Code of Criminal Procedure (including as applied mutatis mutandis pursuant to the provisions of Article 316-28, paragraph (2) of the same Code).
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-30/par-1: 第二十三条第一項 → 不正競争防止法 第二十三条第一項 (Article 23, paragraph (1)), art-23/par-1 — https://japanlaw.org/ja/unfair-competition-prevention-act/art-23/par-1 · https://japanlaw.org/l/405AC0000000047/art-23/par-1
- art-30/par-1: 刑事訴訟法第二百九十九条第一項 → e-Gov law 323AC0000000131, 第二百九十九条第一項 (Article 299, paragraph (1)), art-299/par-1 — not held in this collection
- art-30/par-1: 第三項 → 不正競争防止法 第二十三条第三項 (Article 23, paragraph (3)), art-23/par-3 — https://japanlaw.org/ja/unfair-competition-prevention-act/art-23/par-3 · https://japanlaw.org/l/405AC0000000047/art-23/par-3
- art-30/par-2: 前項 → 不正競争防止法 第三十条第一項 (Article 30, paragraph (1)), art-30/par-1 — https://japanlaw.org/ja/unfair-competition-prevention-act/art-30/par-1 · https://japanlaw.org/l/405AC0000000047/art-30/par-1

## Cited by

2 provisions cite this one. No official source publishes this direction.

- 不正競争防止法 第三十条第二項（証拠開示の際の営業秘密の秘匿要請） — https://japanlaw.org/ja/unfair-competition-prevention-act/art-30/par-2 · https://japanlaw.org/l/405AC0000000047/art-30/par-2
- 不正競争防止法 第三十一条第一項（最高裁判所規則への委任） — https://japanlaw.org/ja/unfair-competition-prevention-act/art-31/par-1 · https://japanlaw.org/l/405AC0000000047/art-31/par-1

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 不正競争防止法 — the text in force from 2026-05-21 (https://laws.e-gov.go.jp/law/405AC0000000047/20260521_507AC0000000039), retrieved 2026-10-11
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Unfair Competition Prevention Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4920/tb), retrieved 2026-10-11
- This site's parser, version 189 — 不正競争防止法 — structure, counts, cross-references and defined terms, computed 2026-10-11
