Investigations

Guiding clients through high-stakes and sensitive investigations.

Key Contacts

Meet Our Team

Areas of Focus

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Experience

  • Representing a technology company in parallel investigations by over a dozen State Attorneys General, the FTC, the US Congress, and numerous international regulators regarding data privacy and consumer protection issues. 
  • Representing a major multinational company in a DOJ/SEC investigation of alleged Foreign Corrupt Practices Act violations in Brazil and Colombia, which was closed when both agencies declined to bring charges.
  • Representing a client relating to the ongoing investigation by the Eastern District of New York involving FIFA confederation officials, international sports marketing firms and other unnamed co-conspirators.
  • Mounting a multifaceted response after the “London Whale” incident, in which a trader in JPMorgan Chase’s London-based Chief Investment Office acquired large positions in synthetic credit derivatives, leading to losses of approximately $6 billion. The response involved crafting a communications strategy, assisting the bank in its management task force review, and responding to inquiries from regulators and enforcement authorities from all over the world. We helped resolve investigations by the US Securities and Exchange Commission, the Office of the Comptroller of the Currency, the Federal Reserve, the UK’s Financial Conduct Authority and the US Senate Permanent Subcommittee on Investigations.
  • Taking over as counsel to a Palo Alto–based health technology and medical laboratory services company in federal and state law enforcement and regulatory investigations, private civil litigation in federal and state courts, and corporate restructurings, following explosive media exposés about the company in national publications.
  • Representing a Japanese auto parts manufacturer and its US subsidiary in the largest Department of Justice antitrust investigation in US history and in more than 50 different class actions (each involving different products and sets of plaintiffs) in one of the most complex multi-district litigations in the United States.
  • Representing a major financial institution in cross-border tax evasion investigations initiated by regulators across four continents, overseeing local counsel in multiple countries and providing strategic advice.

Recognition

  • Law360  WilmerHale Named Compliance Practice Group of the Year for 2025.
  • Chambers and Partners – Ranked WilmerHale among the nation’s best crisis management law firms in the 2022–2025 editions of the Chambers Crisis and Risk Management Guide.
  • Global Investigations Review – Ranked WilmerHale sixth on its list of top law firms involved in complex, international corporate investigations. Named a finalist in the 2021 and 2025 “Most Impressive Investigations Practice of the Year,” the winner of the 2022 “Most Impressive Investigations Practice of the Year” and a finalist in its 2021 “Most Impressive Investigations Practice of the Year,” “Most Important Court Case of the Year” and “Most Important Development of the Year” contests. Since 2015, the firm has been ranked at the top of GIR’s list of the world’s most accomplished investigations practices. GIR also gave WilmerHale a 2016 nod as “Most Impressive Investigations Practice of the Year” for its cross-border work in both high-profile internal and government-led investigations.
  • Global Investigations Review Just Anti-Corruption – Gave WilmerHale’s Washington DC office an “elite” ranking for its Foreign Corrupt Practices Act Practice, placing the firm among the top in the nation’s capital.

Insights & News

  • Webinar
July 14, 2026

Navigating the FCA’s Rules on Non-Financial Misconduct: Final Preparations

Join WilmerHale Partner Lloyd Firth and Counsel Imogen Makin for a short webinar focused on what firms should be doing in advance of the UK Financial Conduct Authority’s (FCA) new non-financial misconduct rule and guidance coming into force on 1 September 2026.
  • Client Alert
June 25, 2026

A New Era of Enforcement in UK Sanctions

The United Kingdom’s Office of Financial Sanctions Implementation has imposed its first monetary penalties under its new settlement scheme for breaches of the United Kingdom’s Russian sanctions regime and separately published a three-year strategy and cross-government policy paper on sanctions enforcement.
  • Speaking Engagement
June 23, 2026

SEC Accounting Fraud 2026

Partner Jaclyn Moyer and Brian J. Jarzynski, CPA, Managing Director at Ernst & Young LLP, will examine recent SEC enforcement developments in accounting and financial fraud matters during a webinar hosted by The Knowledge Group. 

Notice

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