Warrington Parker

Overview

Warrington Parker, the managing partner of Crowell & Moring’s San Francisco office, is an experienced first-chair trial lawyer and former federal prosecutor. He has successfully tried over 20 cases encompassing a diverse range of civil and criminal matters, such as securities fraud, money laundering, employment discrimination, wrongful termination, copyright, trade secret, violation of California bond measures statutes, product liability, product defect, and breach of contract. Warrington is also a member of the firm’s Litigation, White Collar & Regulatory Enforcement, and Investigations groups.

As a veteran litigator who knows his way around a court room and the board room, Warrington helps clients navigate issues involving the government or claimed violations of state and federal regulations and statutes. He represents clients in False Claims Act matters, employment discrimination cases involving a federal research facility, allegations of fraud and breach of contract brought against a client by a state, and allegations that a school board inappropriately spent bond monies in violation of California law. Additionally, he conducts criminal and civil investigations, both nationally and internationally, including FCPA and financial irregularity investigations in China, Japan, and India.

American Lawyer’s Litigation Daily recognized Warrington’s litigation prowess by awarding him the “Litigator of the Week” accolade for his representation of a multinational computer technology corporation in its pay discrimination suit (2020). He has also been a member of a trial team that Law360 recognized as Legal Lions (2019) after obtaining a favorable verdict in a product liability case in California. Warrington has been named by California Super Lawyers for civil litigation and criminal defense (2006-2007, 2012-2020).

From 1992 to 1996, Warrington was an Assistant U.S. Attorney for the Central District of California in the Los Angeles Criminal Division. He was a law clerk to the Honorable Cecil F. Poole of the U.S. Court of Appeals for the Ninth Circuit (1989-1990).

Career & Education

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Department of Justice: United States Attorneys' Office
Central District of California: Criminal Division, 1992–1996
- Department of Justice: United States Attorneys' Office
  Central District of California: Criminal Division, 1992–1996
Princeton University, A.B., 1986
Harvard Law School, J.D., 1989
- Princeton University, A.B., 1986
- Harvard Law School, J.D., 1989
California
U.S. Court of Appeals for the Second Circuit
U.S. Court of Appeals for the Third Circuit
U.S. Court of Appeals for the Fifth Circuit
U.S. Court of Appeals for the Ninth Circuit
U.S. Court of Appeals for the Eleventh Circuit
Supreme Court of the United States
- California
- U.S. Court of Appeals for the Second Circuit
- U.S. Court of Appeals for the Third Circuit
- U.S. Court of Appeals for the Fifth Circuit
- U.S. Court of Appeals for the Ninth Circuit
- U.S. Court of Appeals for the Eleventh Circuit
- Supreme Court of the United States
Professional Activities and Memberships

Board of Directors, Legal Aid at Work, 2021

Board of Directors, Harvard Law School Association of Northern California, 2021

Member, American Bar Association

Co–Chair, ABA Criminal Litigation Committee, 2019

Co–Chair, ABA White Collar Committee's Computer Crime, Intellectual Property and Trade Secrets Subcommittee

Co–Chair, ABA Litigation Section Appellate Practice Committee Publications Subcommittee, 2004–2008

Sigma Pi Phi Fraternity

Lecturer, University of California, Berkeley, School of Law, Boalt Hall, Criminal Procedure, 2008–2009

Board Member, Mural Music & Arts Project, 2017–2018

Board Member, Urban High School, 2010–2019

Member, Ninth Circuit Criminal Appellate Panel, 2008–2014

Lawyer Representative, Central District of California, 2002–2005

Instructor, U.S. Attorney's Office, Basic Trial Advocacy, 1996

Staff Member, Kolts Commission, 1992

Board Member, Marin Country Day School, 2004–2012

Board Member, East Bay Community Law Center, 2004–2008
Professional Activities and Memberships
- Board of Directors, Legal Aid at Work, 2021
- Board of Directors, Harvard Law School Association of Northern California, 2021
- Member, American Bar Association
  - Co–Chair, ABA Criminal Litigation Committee, 2019
  - Co–Chair, ABA White Collar Committee's Computer Crime, Intellectual Property and Trade Secrets Subcommittee
  - Co–Chair, ABA Litigation Section Appellate Practice Committee Publications Subcommittee, 2004–2008
- Sigma Pi Phi Fraternity
- Lecturer, University of California, Berkeley, School of Law, Boalt Hall, Criminal Procedure, 2008–2009
- Board Member, Mural Music & Arts Project, 2017–2018
- Board Member, Urban High School, 2010–2019
- Member, Ninth Circuit Criminal Appellate Panel, 2008–2014
- Lawyer Representative, Central District of California, 2002–2005
- Instructor, U.S. Attorney's Office, Basic Trial Advocacy, 1996
- Staff Member, Kolts Commission, 1992
- Board Member, Marin Country Day School, 2004–2012
- Board Member, East Bay Community Law Center, 2004–2008

Warrington's Insights

Press Coverage | 12.10.24

Lawyers Navigate Novel AI Legal Battles

Press Coverage | 12.06.24
Flattened Fair-Use Factors Fall Flat With US Judge At Hearing On AI training Data
Press Coverage | 12.05.24
AI Tool's Data Training Not Fair Use, Thomson Reuters Argues
Event | 10.20.24
2024 AIPPI World Congress

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Representative Matters

Trial counsel in cases alleging that asbestos contamination of a company’s talc products caused mesothelioma and obtained a favorable verdict.
Co-counsel representing a software company at trial in case brought by OFCCP alleging pay discrimination.
Obtained defense verdict following trial that resulted in the setting aside of an injunction in a dispute involving the claimed inappropriate expenditure of school bond monies (Alpine Unified School District v. Grossmont Union High School District).
Obtained verdict favoring client in a criminal case in which the government alleged wire fraud and securities fraud (United States v. Deller).
Co-tried two cases and obtained defense verdict in connection with allegations of disparate impact age discrimination (Andrews et al. v. Lawrence Livermore Lab).
Participated in team that litigated allegations brought by Oregon against a software company alleging violations of the False Claims Act, RICO, fraud, and breach of contract (State of Oregon v. Oracle).
Trial counsel for an individual indicted for money laundering and wire and mail fraud (United States v. Vann).
With others, successfully represented a toy company in a case involving, among other things, allegations of copyright infringement and trade secret misappropriation relating to dolls (Mattel v. MGA).
Represent and advise a Fortune 100 company in FCPA investigations in China, Japan, and India.
Represented government contractor and obtained dismissal of complaint alleging False Claims Act violations.
Successfully represented solar energy equipment supplier in a case alleging a reverse False Claim Act claim.
Successfully represented a medical center in matter alleging violations of the False Claims Act.
Successfully represented entrepreneurs in an investigation by the U.S. Attorney’s Office concerning potential violation of the False Claims Act, specifically against potential claims of a violation of the Anti-Kickback Statute and Stark Law.
Conducted investigation relating to and counseled client regarding the False Claims Act retaliation provisions.
Represented government contractor and obtained dismissal of complaint alleging False Claims Act violations.
Represented officer of a company in a special investigation and follow on derivative action relating to alleged stock option backdating.
Represented CFO of a company alleged to have engaged in violations of securities laws.
Represented an ISP in a trade secrets misappropriation and breach of contract action resulting in favorable termination for client.
Represented a company in a trade secrets misappropriation and breach of contract action resulting in favorable termination for client.
Drafted appellate briefs for an events company. Without argument, the Ninth Circuit reversed the district court's decision to invalidate a settlement agreement that resolved Nevada officials' claimed infringement of client's First Amendment rights (Black Rock City, LLC v. Pershing County Board of Commissioners (Ninth Circuit)).
Obtained reversal of order following an election challenge that would have permanently banned the client from participating in elections (Bradley v. Perrodin (Cal. Court of Appeal)).
Successfully represented the client in an appeal from the denial of an arbitration request and successfully prosecuted a writ petition involving a discovery matter (Nassgil v. Hughes Electronics (Cal. Court of Appeal)).
Successfully represented the client in an insurance coverage matter (PMI v. AISLIC (Ninth Circuit)).
Successfully represented the client in an attorneys' fees dispute (Bank of America v. Williams (Cal. Court of Appeal)).
Obtained the reversal of a multimillion-dollar jury verdict (Tech v. National Semiconductor (Cal. Court of Appeal)).
Obtained reversal of conviction for securities fraud (U.S. v. Hall (Ninth Circuit)).
Represented law schools and professors in a First Amendment challenge to the Solomon Amendment (FAIR v. Rumsfeld (U.S. Supreme Court)).
Represented as amici in a matter involving a constitutional challenge to way in which students could be assigned to schools (Parents Involved in Community Schools v. Seattle Sch. Dist. (U.S. Supreme Court)).
Represented amici in an appeal involving a constitutional challenge to a city policy prohibiting the use of berthing space by nonprofits that discriminated on the basis of sexual orientation (Evans v. City of Berkeley (Cal. Supreme Court)).