Photograph of Preston L. Pugh

Government Experience

  • Department of Justice: United States Attorney's Office—Northern District of Illinois: Assistant United States Attorney (1999-2002)
  • National Labor Relations Board—Appellate Court Branch (1997-1999)


  • Cornell University, B.A. (1994)
  • New York University School of Law, J.D. (1997)


  • District of Columbia
  • Illinois
  • New York

Preston L. Pugh

Washington, D.C.
Phone: +1 202.624.2669
1001 Pennsylvania Avenue NW
Washington, DC 20004-2595

Preston Pugh helps companies, board committees and large organizations conduct internal investigations and respond to government investigations, often stemming from high stakes whistleblower complaints. He is a partner at the Firm, and co-leads its False Claims Act Practice. For more than 20 years, he has helped clients navigate many different types of crises—including commercial and government contract fraud investigations; C-suite corporate ethics concerns; whistleblower retaliation claims; broad-based harassment and discrimination complaints; investigations by Congress; and related litigation. He has been recognized by the Legal 500 for his work in investigations.

Preston is skilled in governance, risk management and compliance.  He is frequently called by clients to navigate reputational concerns.  He has gained critical perspective from his service as an AUSA working on both civil and criminal cases at the United States Attorney’s Office in Chicago; at GE Healthcare, where he was the Senior Counsel for Investigations and Litigation leading global investigations; and as a compliance monitor appointed multiple times in cases throughout the country.  He is also skilled in trial and appellate advocacy, having successfully tried a wide variety of federal cases, and having argued civil appeals in the majority of the U.S. Courts of Appeals. He has succeeded in two cases of first impression: one in the U.S. Court of Appeals for the First Circuit and another, as amicus counsel, in the Illinois Supreme Court.  

Contributing to the legal profession, and mentoring, is an important part of Preston’s work.  For ten years, he served as part of the national faculty for the National Institute for Trial Advocacy.  He has had significant involvement in the NBA and ABA, including his current role as a co-chair of the ABA CJS Qui Tam subcommittee, a co-chair of the ABA Global Anticorruption Committee, and a member of the ABA task force that drafted the first-ever ABA standards for corporate monitors.  He has served as a mentor in the Washington DC-based Abramson Foundation, and also informally continues to serve as a mentor to several younger attorneys.

Before joining Crowell & Moring, Preston was a partner and a member of the executive committee at a well-respected Washington, D.C. firm, and before that, a prominent trial boutique in Chicago. He was recognized as an "Illinois Super Lawyer" from 2011 to 2017 and received multiple Special Service Awards during his time at the U.S. Attorney's Office in Chicago. He is a prolific writer and speaker on topics including whistleblower laws and cases, the False Claims Act, and corporate compliance investigations.  He is licensed to practice in Washington, D.C., New York, and Illinois.


Whistleblower Investigations

  • Led a team in the investigation of the chief of police for a large county authority, focused on more than ten years of workplace allegations of harassment, bullying and discrimination. Reported to and advised executive director of the county, and also county board of directors, regarding the same.
  • Led the successful defense of a large healthcare provider in a ten-month OSHA whistleblower investigation regarding allegations of noncompliance with OSHA safety reporting standards and the provision of N-95 masks.
  • Led an investigation of collective whistleblower concerns at a large nonprofit regarding racism, noncompliance with ADA standards, favoritism and bullying.
  • Part of a team that investigated whistleblower allegations of misconduct against the executive director of a large museum.
  • Led the internal investigation of a government contractor in the technology sector with respect to whistleblower concerns about the hiring of a third party in South America.
  • Jointly led the investigation into allegations by a whistleblower regarding accounting and internal governance/compliance issues of a $5B non-U.S. headquartered company and its U.S. subsidiary, reporting results to external auditor.
  • Conducted a nine-month internal investigation of a health care medical device company regarding allegations of kickbacks, off-label marketing, and other health care compliance issues.
  • Retained by a board of directors to investigate numerous code of conduct complaints against the CEO of a large hospital, including conflicts of interest and other allegations.
  • On behalf of a large corporation, investigated the company's Deputy Chief of Human Resources for numerous alleged code of conduct breaches.
  • Investigated senior transportation executive for allegedly rigging a hiring process for pilots seeking promotion.

Government Investigations and Compliance Counseling

  • Led team that represented former DNC Consultant/Chair of DNC Ethnic Council in foreign assistance investigation by the United States Senate.
  • Led a top-to-bottom risk assessment of a global manufacturer in Europe, the Middle East, Africa, U.S., and Asia Pacific covering anti-corruption, third-party due diligence, cartels, government contracts, trade controls, and the use, availability, and structure of its whistleblower reporting channels.
  • Represented the second largest hospital in Wisconsin after the tragic onsite homicide of a nurse-practitioner. Led a team to conduct an internal investigation of the homicide and hospital security protocols. Advised the hospital regarding communications and discussions with internal and external stakeholders. Represented the hospital in associated extensive OSHA investigation, which resulted in no adverse findings against the hospital.
  • Jointly led the internal investigation of an airline in an industry-wide False Claims Act (FCA) and false statements investigation by the U.S. Department of Justice (DOJ) and the U.S. Postal Service (USPS). The investigation was both domestic and global, took place over several years, and involved dozens of witnesses.
  • Defended FCA and criminal false statement allegations against a Division I university following a well-publicized 2013 dawn raid by 54 federal and state law enforcement agents. Advised university regarding crisis communications, discussions with law enforcement, internal and external stakeholders, and internal investigation of the issues. After several years, the DOJ closed the investigation with no charges filed.
  • Jointly led an independent investigation of alleged conduct by coaches on a Big Ten sports team, including highly publicized allegations by student-athletes of abuse, favoritism, and racism. Drafted public report issued to all university alumni.


  • Currently representing a large MCO in arbitration of U&C claims against pharmacies for fraud and breach of contract.
  • Defended three executives of a large Wall Street financial institution in a nationally publicized trade secrets and non-solicitation lawsuit filed by the executives’ former employer/financial institution. The case was litigated in both the Illinois Chancery Court and FINRA.
  • Defended a bank accused of widespread racial discrimination against its customers. Arbitrated the case in 2018, showed allegations had no merit and ultimately achieved a complete victory on the merits of the case.
  • Wrote the successful argument in one of the leading FCA implied certification qui tam cases in the Seventh Circuit, U.S. ex rel. Bragg v. SCR, part of the circuit split that led to the U.S. Supreme Court's decision in Universal Health Services v. U.S. ex rel. Escobar.


Admitted to practice: District of Columbia; Illinois; New York and before the U.S. Supreme Court, U.S. District Court, Northern District of Illinois, U.S. Court of Appeals, Sixth and Seventh Circuits

Professional Activities and Memberships

  • Co-Chair, Global Anti-Corruption Committee, American Bar Association
  • Co-Chair, Qui Tam Subcommittee, Criminal Justice Section, American Bar Association
  • American Bar Association's Task Force on Corporate Monitors
  • Leadership Greater Chicago, Class of 2012
  • Former Member, Character and Fitness Committee, Illinois Attorney Registration and Disciplinary Committee
  • Former Chair, Labor and Employment Committee, Chicago Bar Association

Speeches & Presentations


Client Alerts & Newsletters

Media Mentions

Firm News & Announcements

Mar.05.2021 Crowell & Moring Lawyers Engage with Corporate Officers at National Bar Association Commercial Law Section’s Annual Corporate Counsel Conference
Aug.03.2020 Trusted Investigations Counsel and Court-Appointed Monitor Preston Pugh Joins Crowell & Moring