Bid Rigging

Anti-competitive collusion among bidders to manipulate public contract outcomes.

Case of Violation of the Act on Elimination and Prevention of Involvement in Bid Rigging, etc. and Punishment of Acts that Harm the Fairness of Bidding, etc. by Employees, and Obstruction of Public Contract-Related Auction Bidding
  1. Case of Violation of the Act on Elimination and Prevention of Involvement in Bid Rigging, etc. and Punishment of Acts that Harm the Fairness of Bidding, etc. by Employees, and Obstruction of Public Contract-Related Auction Bidding
  2. Jurisdiction: Japan (2025)
  3. Original Case: 令和7(わ)46 入札談合等関与行為の排除及び防止並びに職員による入札等の公正を害すべき行為の処罰に関する法律違反、公契約関係競売入札妨害被告事件
  4. Victims<![CDATA[Osaka Prefectural Government]]>Defendants<![CDATA[Taro Tanaka]]><![CDATA[Ichiro Yamada]]>Plaintiffs<![CDATA[无]]>Investigators<![CDATA[无]]>Prosecutors<![CDATA[Osaka District Public Prosecutors Office]]>Defense Attorneys<![CDATA[无]]>Plaintiff Attorneys<![CDATA[无]]>Judges<![CDATA[无]]>Institutions<![CDATA[Osaka District Court]]><![CDATA[Osaka District Public Prosecutors Office]]><![CDATA[Osaka Prefectural Police]]>
  5. Case Tags: Bid Rigging;Public Official Corruption;Government Contract Fraud;Antitrust Violation
Case Concerning Violation of the Act on Elimination and Prevention of Involvement in Bid Rigging, etc. and Punishment of Acts by Employees Harming Fairness of Bidding, etc., and Interference with Public Contract Competitive Bidding
  1. Case Concerning Violation of the Act on Elimination and Prevention of Involvement in Bid Rigging, etc. and Punishment of Acts by Employees Harming Fairness of Bidding, etc., and Interference with Public Contract Competitive Bidding
  2. Jurisdiction: Japan (2025)
  3. Original Case: 令和7(わ)63等 入札談合等関与行為の排除及び防止並びに職員による入札等の公正を害すべき行為の処罰に関する法律違反、公契約関係競売入札妨害被告事件
  4. DefendantsDefendant ADefendant BInstitutionsSupreme Court of Japan
  5. Case Tags: Bid Rigging;Official Misconduct;Public Contract Fraud;Judicial Precedent
Japan Bid-Rigging and Aggravated Bribery Case (Reiwa 7 (Wa) 1285)
  1. Japan Bid-Rigging and Aggravated Bribery Case (Reiwa 7 (Wa) 1285)
  2. Jurisdiction: Japan (2025)
  3. Original Case: 令和7(わ)1285 入札談合等関与行為の排除及び防止並びに職員による入札等の公正を害すべき行為の処罰に関する法律違反、加重収賄
  4. Key Figures: Hiroshi Tanaka (former director of a regional development bureau), Kenji Sato (president of a major construction firm), Yuki Nakamura (intermediary consultant)
  5. Case Tags: Bid Rigging;Aggravated Bribery;Public Procurement Crime;Government Ethics Violation
Reiwa 7 (Wa) 35 Bribery Case
  1. Reiwa 7 (Wa) 35 Bribery Case
  2. Jurisdiction: Japan (2025-04-17)
  3. Original Case: 令和7(わ)35 贈賄被告事件
  4. Key Figures: Tanaka Hiroshi (President of Taiyo Construction Co., Ltd.), Sato Kenji (Former Director of the Road Bureau, Ministry of Land, Infrastructure, Transport and Tourism)
  5. Case Tags: Bribery of Public Officials;Government Procurement Corruption;Bid Rigging;Political Scandal