Skip to main content

Managing Investigations - Best practice in Government and Internal Investigations: Japan

  • Articles

Read in Japanese

Managing Investigations - Best practice in Government and Internal Investigations: Japan

Kazuho Nakajima, Jun Katsube, Masahiro Heike and Ryuichi Ito co-authored the Japan chapter of Managing Investigations - Best practice in Government and Internal Investigations, published by WorldECR.


中島 和穂


  • Partner
  • Tokyo

He has extensive experience handling cases involving complex legal issues, such as mergers and acquisitions by a public-private investment fund in the context of a business turnaround, a high-value dispute between a securities company and a stock exchange, adoption of anti-takeover defense measures for the first time in Japan, expansion of foreign businesses into the Middle East involving geopolitical risks, and commercial arbitration involving sizable claims regarding M&A price adjustment clauses. Recently, he been advising on risk assessments for transactions, contract drafting, voluntary self-disclosure to government authorities, responses to enforcement actions by the authorities, and establishment of internal control systems with respect to economic security regulations. In particular, he engages in numerous transactions involving economic sanctions, export controls and other economic security regulations regarding conflicts between the US and China over technology competition and human rights issues in Myanmar, Iran and Russia.

勝部 純

Jun is a partner in our corporate crisis management practice, who handles domestic and overseas corporate crisis management matters, including conducting internal investigations, responding to relevant authorities and stock exchanges, the media, handling labor disputes, representing companies in relevant legal proceedings in relation to various corporate misconduct matters, such as quality falsification issues by manufacturing companies, financial fraud issues, etc. Jun has experience as a member of an investigation committee on corporate misconduct. Jun was previously seconded to a global trading company, and he has extensive experience in handling cross-border corporate crisis management matters and establishing global compliance programs. Jun is also a partner in our energy and natural resources practice, where he mainly advises utility companies, including providing advice on domestic and overseas investments, contracts, regulations, and disputes in relation to energy and natural resources.

平家 正博

Masahiro Heike specializes in international trade law. From 2016 to 2018, he worked at the Ministry of Economy, Trade and Industry as an in-government lawyer, and handled numerous WTO disputes and trade negotiations and was responsible for the trade policies of other jurisdictions including the United States and China. Currently, he is involved in a wide range of matters including WTO dispute settlement cases, domestic and foreign trade remedy cases (anti-dumping, safeguards), government research related to international trade law, and the handling of tariffs and origin relations.