White Collar Defense, Regulatory and Investigations
Our lawyers handle sensitive internal and governmental investigations, regulatory proceedings, and related litigation for global public companies, financial institutions, boards, special committees, directors and senior executives, and develop comprehensive compliance programs to help our clients avoid unanticipated scrutiny and manage risk.
Notable Representations, Key Contacts
Weil’s global White Collar Defense, Regulatory and Investigations practice includes a number of former federal prosecutors and senior Department of Justice officials. While in government service, lawyers in our practice led the oversight of a wide range of investigations, including more than 50 DOJ prosecutions of FCPA matters and more than 60 prosecutions of insider trading matters, among others. We draw on this impressive substantive and case management experience to provide clients with effective, efficient, and discrete counsel.
We partner with clients to address and mitigate risks associated with a broad range of substantive issues and areas of the law, including:
- Securities Fraud
- Accounting issues
- Financial disclosures
- The Foreign Corrupt Practices Act
- Antitrust and Competition law issues
- Healthcare Fraud
- Tax Fraud
- Insider Trading
- Environmental regulations
- Qui tam/whistleblower complaints
- The False Claims Act
- Anti-Money Laundering and other economic crimes
In addition, working closely with lawyers across the Firm, we assist our clients at all phases of their compliance efforts, including review of compliance programs, development and implementation of compliance programs and audits, and coordination of internal and governmental investigations.
Selected Representations
American Realty Capital Properties Audit Committee Investigation
DOJ LIBOR Investigation
Weil represents a former senior trader at a major financial institution in connection with the U.S. Department of Justice’s criminal investigation into alleged manipulation of LIBOR.
Toyobo - DOJ False Claims Act Investigation
Weil served as lead counsel overseeing the defense of Toyobo, a major Japanese fiber manufacturer, in connection with False Claims Act litigation brought by the U.S. DOJ, class action litigation, multiple personal injury suits, and claims by multiple state attorneys general and foreign states, among others, relating to the performance of Toyobo’s Zylon fiber in bullet-resistant vests used by thousands of law enforcement agencies worldwide. In 2018, Weil negotiated a settlement of all remaining claims after securing a number of successful outcomes in the various lawsuits.
Multi-agency Investigation into the Financial Crisis: AIG
SEC and other Regulatory Investigations
- An SEC investigation into a failed IPO of an electronic trading platform
- An SEC investigation and related class action litigation involving the underwriting of a SaaS provider
- A CFTC investigation into a conspiracy to manipulate the ISDAFix, the International Swaps and Derivatives Association’s benchmark rate for the swaps market
FCPA and other Anti-Bribery and Corruption Investigations
Weil is advising a global pharmaceutical company in connection with DOJ and SEC investigations of alleged violations of the FCPA involving the company’s subsidiaries in a number of countries in emerging markets. In 2018, Weil secured a declination when the DOJ closed its investigation without bringing an enforcement action.
Healthcare Fraud/False Claims Act Investigation
Key Contacts



See list of lawyers globally
Shortcut Links
Recent Announcement
- Justice Department Focus on National Security Results in First Enforcement Actions by Disruptive Technology Strike Force Alert — White Collar Defense, Regulatory and Investigations — PDF — May 23, 2023
- Weil Named a Top Investigations Firm by Global Investigations Review in 2023 Firm Announcement — December 01, 2023
Ranked among the leading firms in New York for White Collar Crime and Government Investigations.
Chambers USA 2023
Weil’s White Collar practice is described as “adept at handling cross-border and multijurisdictional proceedings by the DOJ, SEC and international regulatory bodies” with “a strong, practical and experienced team that gets good results for its clients.”
Chambers USA
Ranked among the top investigations firms globally for nine consecutive years.
Global Investigations Review’s GIR 100 2015-2023
Weil has a track record of netting its client impressive results. It has proven time and again that it can secure declinations for companies.
Global Investigations Review
Weil is recognized among the leading firms in the U.S. for Corporate Investigations and White-Collar Criminal Defense for both Advice to Corporates and Advice to Individuals.
Legal 500 US 2023
Weil is “excellent on all levels” and offers “exceptional litigators with incredible bench strength and expertise who are “very knowledgeable [and] extremely responsive.”
Legal 500 US
Awards and Recognition, Awards and Recognition, Speaking Engagements, Guides and Resources, Latest Thinking, Firm News & Announcements, Speaking Engagements, Latest Thinking, Firm News & Announcements, Recent Announcement
Awards and Recognition
- Weil Named a Top Firm Globally for Investigations Award Brief — Global Investigations Review’s GIR 100 2015-2023
- Weil Named a “Leading Firm” for Litigation: White-Collar Crime & Government Investigations, New York Award Brief — Chambers USA 2023
- Weil Named a “Leading” Firm for Corporate Investigations and White-Collar Criminal Defense – Advice to Corporates Award Brief — Legal 500 US 2023
- Weil Named a “Leading” Firm for Corporate Investigations and White-Collar Criminal Defense – Advice to Individuals Award Brief — Legal 500 US 2023
Speaking Engagements
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The New Realities of Cross-Border Internal Investigations: The Interplay of Foreign Privacy and Labor Laws, Privilege, Governance Issues and Budget Constraints
Speaker(s):
Sarah Coyne
November 29, 2023 — National Harbor, MD — White Collar Practice Co-Head Sarah Coyne participated in a panel at ACI’s 40th Annual International Conference on the FCPA discussing various issues and intricacies relating to foreign investigations.
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Addressing a “Troubling Trend” – The Intersection of Corporate Crime and National Security
Speaker(s):
Sarah Coyne
September 21, 2023 — New York, New York — Weil White Collar Practice Co-Head Sarah Coyne spoke on a panel at the 2023 GIR Live Annual Investigations Meeting, discussing the geopolitical and national security implications corporations need to be aware of in major criminal investigations.
Latest Thinking
- SEC Announces 2023 Division of Enforcement Results Alert — Securities Litigation — By Robert Stern and Daniel L. Stein — PDF — November 21, 2023
- DOJ Announces New Safe Harbor Policy for M&A Transactions Alert — White Collar Defense, Regulatory and Investigations — By Sarah Coyne, Daniel L. Stein and Michael Taddei — PDF — October 16, 2023
- Justice Department Focus on National Security Results in First Enforcement Actions by Disruptive Technology Strike Force Alert — White Collar Defense, Regulatory and Investigations — PDF — May 23, 2023
- Litigation Trends 2023 Publication — By Weil’s Litigation Department — Spring 2023
- SEC Division of Enforcement FY 2022 Results: Aggressive Approach Highlighted by Dramatic Increase in Penalties and “High Impact Cases” Alert — White Collar Defense, Regulatory and Investigations — By Robert Stern, Daniel L. Stein, Adé Heyliger, Nicole Elizabeth Prunetti and Michelle Gemmell — PDF — November 29, 2022
Firm News & Announcements
- Weil Named a Top Investigations Firm by Global Investigations Review in 2023 Firm Announcement — December 01, 2023
- Three Weil Partners Named Law360 Rising Stars in 2023 Firm Announcement — July 07, 2023