# 私的独占の禁止及び公正取引の確保に関する法律 / Act on Prohibition of Private Monopolization and Maintenance of Fair Trade — 第百一条 (Article 101)

This is the Markdown twin of https://japanlaw.org/en/antimonopoly-act/art-101. 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: 私的独占の禁止及び公正取引の確保に関する法律 (Act on Prohibition of Private Monopolization and Maintenance of Fair Trade), 昭和二十二年法律第五十四号
- English title "Act on Prohibition of Private Monopolization and Maintenance of Fair Trade": 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: 第百一条 (Article 101) — address `art-101`
- Text in force since: 2026-05-21
- URL (the page that opens at this provision): https://japanlaw.org/en/antimonopoly-act/art-101
- e-Gov law ID: 322AC0000000054 — 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.

---

### 第百一条
<sup>art-101 · https://japanlaw.org/en/antimonopoly-act/art-101</sup>

**第一項**  公正取引委員会の職員（公正取引委員会の指定を受けた者に限る。以下この章において「委員会職員」という。）は、犯則事件（第八十九条から第九十一条までの罪に係る事件をいう。以下この章において同じ。）を調査するため必要があるときは、犯則嫌疑者若しくは参考人（以下この項において「犯則嫌疑者等」という。）に対して出頭を求め、犯則嫌疑者等に対して質問し、犯則嫌疑者等が所持し若しくは置き去つた物件を検査し、又は犯則嫌疑者等が任意に提出し若しくは置き去つた物件を領置することができる。
<sup>art-101/par-1 · https://japanlaw.org/en/antimonopoly-act/art-101/par-1</sup>
When necessary in the investigation of a criminal case (cases related to crimes in Articles 89 to 91; hereinafter the same applies in this Chapter), a staff member of the Japan Fair Trade Commission (limited to the staff members designated by the Japan Fair Trade Commission; hereinafter referred to in this Chapter as a "Japan Fair Trade Commission staff member") may request a criminal suspect or witness (hereinafter referred to in this paragraph as a "criminal suspect, etc.") to appear before the Japan Fair Trade Commission, may question a criminal suspect, etc., inspect an object possessed or abandoned by a criminal suspect, etc., and may retain an object voluntarily submitted or abandoned by a criminal suspect, etc.
<sup>Ministry of Justice translation with a slip corrected by this site — not the Ministry's text; the Ministry printed: "When necessary in the investigation of a criminal case (cases related to crimes in Articles 89 to 91; hereinafter the same applies in this Chapter), a staff member of the Japan Fair Trade Commission (limited to the staff members designated by the Japan Fair Trade Commission; hereinafter referred to in this Chapter as a "Japan Fair Trade Commission staff member") may request a criminal suspect or witness (hereinafter referred to in this paragraph as "criminal suspect or witness") to appear before the Japan Fair Trade Commission, may question a criminal suspect, etc., inspect an object possessed or abandoned by a criminal suspect or witness, and may retain an object voluntarily submitted or abandoned by a criminal suspect, etc." — https://www.japaneselawtranslation.go.jp/en/laws/view/5212/tb</sup>

**第二項**  委員会職員は、犯則事件の調査について、官公署又は公私の団体に照会して必要な事項の報告を求めることができる。
<sup>art-101/par-2 · https://japanlaw.org/en/antimonopoly-act/art-101/par-2</sup>
In the course of an investigation in a criminal case, a Japan Fair Trade Commission staff member may inquire with a public agency or public or private organization and request that the agency or organization report the necessary matters.
<sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

---

## Cites
- art-101/par-1: 第八十九条から第九十一条まで → 私的独占の禁止及び公正取引の確保に関する法律 第八十九条 (Article 89), art-89 — https://japanlaw.org/en/antimonopoly-act/art-89
- art-101/par-1: 第八十九条から第九十一条まで → 私的独占の禁止及び公正取引の確保に関する法律 第九十条 (Article 90), art-90 — https://japanlaw.org/en/antimonopoly-act/art-90
- art-101/par-1: 第八十九条から第九十一条まで → 私的独占の禁止及び公正取引の確保に関する法律 第九十一条 (Article 91), art-91 — https://japanlaw.org/en/antimonopoly-act/art-91
- art-101/par-1: この項 → 私的独占の禁止及び公正取引の確保に関する法律 第百一条第一項 (Article 101, paragraph (1)), art-101/par-1 — https://japanlaw.org/en/antimonopoly-act/art-101/par-1

## Cited by

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

- 犯罪による収益の移転防止に関する法律 第十三条第一項（捜査機関等への情報提供等） — https://japanlaw.org/en/criminal-proceeds-act/art-13/par-1 (e-Gov law ID 419AC0000000022)
- 私的独占の禁止及び公正取引の確保に関する法律 第百一条第一項 — https://japanlaw.org/en/antimonopoly-act/art-101/par-1

---

## Sources

- claude-opus-5-5 — Corrections to the Ministry of Justice's English of paragraphs, written 2026-11-06
- e-Gov 法令検索, Digital Agency (デジタル庁) — 私的独占の禁止及び公正取引の確保に関する法律 — the text in force from 2026-05-21 (https://laws.e-gov.go.jp/law/322AC0000000054/20260521_505AC0000000063), retrieved 2026-11-06
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Act on Prohibition of Private Monopolization and Maintenance of Fair Trade (私的独占の禁止及び公正取引の確保に関する法律), Article 101, paragraph (1) — the Ministry of Justice's English as printed (https://www.japaneselawtranslation.go.jp/en/laws/view/5212/tb), retrieved 2026-11-06
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Act on Prohibition of Private Monopolization and Maintenance of Fair Trade — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/5212/tb), retrieved 2026-11-06
- This site's parser, version 225 — 私的独占の禁止及び公正取引の確保に関する法律 — structure, counts, cross-references and defined terms, computed 2026-11-06
