# 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 — 第百三条 (Article 103) This is the Markdown twin of https://japanlaw.org/ja/antimonopoly-act/art-103. 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: 第百三条 (Article 103) — address `art-103` - Text in force since: 2026-05-21 - URL (the page that opens at this provision): https://japanlaw.org/ja/antimonopoly-act/art-103 - 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. --- ### 第百三条 art-103 · https://japanlaw.org/ja/antimonopoly-act/art-103 **第一項** 委員会職員は、犯則事件を調査するため必要があるときは、許可状の交付を受けて、犯則嫌疑者から発し、又は犯則嫌疑者に対して発した郵便物、信書便物又は電信についての書類で法令の規定に基づき通信事務を取り扱う者が保管し、又は所持するものを差し押さえることができる。 art-103/par-1 · https://japanlaw.org/ja/antimonopoly-act/art-103/par-1 When necessary in the investigation of a criminal case, after receipt of a warrant, a Japan Fair Trade Commission staff member may seize postal items, correspondence, or documents related to telegrams that are sent by or to a suspect in a criminal case and stored or possessed by persons handling communication affairs pursuant to the provisions of laws and regulations. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 委員会職員は、前項の規定に該当しない郵便物、信書便物又は電信についての書類で法令の規定に基づき通信事務を取り扱う者が保管し、又は所持するものについては、犯則事件に関係があると認めるに足りる状況があるものに限り、許可状の交付を受けて、これを差し押さえることができる。 art-103/par-2 · https://japanlaw.org/ja/antimonopoly-act/art-103/par-2 After receipt of a warrant, a Japan Fair Trade Commission staff member may seize postal items, correspondence, or documents related to telegrams that are stored or possessed by persons handling communication affairs pursuant to the provisions of laws and regulations and do not fall under the provisions of the preceding paragraph, to the extent that there are sufficient grounds to suspect each of the items are related to a criminal case. Ministry of Justice translation — Japanese Law Translation Database System **第三項** 委員会職員は、前二項の規定による処分をした場合においては、その旨を発信人又は受信人に通知しなければならない。ただし、通知によつて犯則事件の調査が妨げられるおそれがある場合は、この限りでない。 art-103/par-3 · https://japanlaw.org/ja/antimonopoly-act/art-103/par-3 If the measures under the preceding two paragraphs have been taken, a Japan Fair Trade Commission staff member must notify the sender or recipient of the items to that effect provided, however, that this does not apply if notifying the sender or recipient is likely to hinder the investigation of the criminal case. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-103/par-2: 前項 → 私的独占の禁止及び公正取引の確保に関する法律 第百三条第一項 (Article 103, paragraph (1)), art-103/par-1 — https://japanlaw.org/ja/antimonopoly-act/art-103/par-1 - art-103/par-3: 前二項 → 私的独占の禁止及び公正取引の確保に関する法律 第百三条第一項 (Article 103, paragraph (1)), art-103/par-1 — https://japanlaw.org/ja/antimonopoly-act/art-103/par-1 - art-103/par-3: 前二項 → 私的独占の禁止及び公正取引の確保に関する法律 第百三条第二項 (Article 103, paragraph (2)), art-103/par-2 — https://japanlaw.org/ja/antimonopoly-act/art-103/par-2 ## Cited by 2 provisions cite this one. No official source publishes this direction. - 私的独占の禁止及び公正取引の確保に関する法律 第百三条第二項 — https://japanlaw.org/ja/antimonopoly-act/art-103/par-2 - 私的独占の禁止及び公正取引の確保に関する法律 第百三条第三項 — https://japanlaw.org/ja/antimonopoly-act/art-103/par-3 --- ## Sources - 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 — 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