Brian A.Sun

Of Counsel

Los Angeles +

Brian Sun has earned a national reputation as a distinguished trial lawyer in complex business litigation and white collar criminal defense. He is a former federal prosecutor, a Fellow of the American College of Trial Lawyers, and has been named by Lawdragon Magazine as one of America's 500 leading lawyers. Brian is recognized as a Band 1 lawyer by Chambers in the area of white collar criminal defense and government investigations. He was also Partner-in-Charge of the Los Angeles Office for several years.

Brian's litigation practice covers a wide range of areas, including matters involving intellectual property disputes, Foreign Corrupt Practices Act (FCPA), public corruption, entertainment, contractual disputes, and fraud. Brian has a substantial cross-border practice, and his clients include Global Fortune 300 institutions and individuals embroiled in high-stakes litigation. Over the years he has represented such clients as Hon Hai Precision Co. (Foxconn), Mattel, Emerson Electric Co., the City of Los Angeles, and a number of individuals, including former Orange County Sheriff Michael Carona and Dr. Wen Ho Lee in his successful civil lawsuit against the United States government.

Brian is a former president of the National Asian Pacific American Bar Association (NAPABA) and the Los Angeles Regional Foodbank. He has been honored by NAPABA with its Trailblazer Award and by the Southern California Chinese Lawyers Association with its Lifetime Achievement Award. He also served as a deputy general counsel to the Christopher Commission, which recommended sweeping reforms of the Los Angeles Police Department in the wake of the Rodney King incident.


  • Chinese state-owned enterprise reaches settlement in federal prosecution for alleged conspiracy, money laundering, smuggling and distribution of human growth hormoneJones Day negotiated a settlement according to which the government dismissed an indictment for conspiracy, money laundering, smuggling and distribution of human growth hormone in exchange for a monetary payment and a guilty plea to one count of bringing an unapproved drug into the U.S.
  • Michael Carona acquitted on five of six counts of indictment charging him with corruption and witness tamperingAfter a high-profile two-month jury trial beginning in October 2008, a team of Jones Day lawyers from the Los Angeles, San Francisco, and San Diego offices obtained an acquittal for ex-Orange County, California sheriff Michael Carona on five of the six counts of an indictment that charged him with corruption and witness tampering.
  • Large offshore multinational corporation responds successfully to U.S. federal criminal tax investigationJones Day represented a large offshore multinational corporation in a federal criminal tax investigation alleging that the company failed to withhold millions of dollars of payroll taxes for hundreds of the company's United States-based employees.
  • Dr. Wen Ho Lee obtains landmark settlement in legal battle with U.S. government arising from press leaks during Los Alamos investigationA team of Jones Day lawyers obtained a landmark $1.645 million-dollar settlement in Dr. Wen Ho Lee's legal battle with the U.S. Government seeking compensation for the unlawful and harmful leaks disseminated to the press by government officials during the investigation of security lapses at Los Alamos National Laboratory in the 1990s, where Dr. Lee was employed as a nuclear physicist.
  • Former counsel to foreign African leader called to testify before Congressional subcommittee investigating "Politically Exposed Persons" and their use of U.S. financial institutionsJones Day represents the former attorney of a senior African official in connection with an investigation by the U.S. Congress into politically powerful foreign officials, known as Politically Exposed Persons or "PEPs," and their use of U.S. financial institutions.
  • Former employees of broadband communications company called to testify as witnesses in stock option backdating investigationJones Day represented multiple former employees of a broadband communications company in connection with the stock option backdating investigation and prosecution conducted by the Department of Justice and the Securities and Exchange Commission.
  • International client obtains order for return of property seized in connection with Arizona's civil forfeiture suit under RICO statuteJones Day moved for return of property seized in connection with Arizona's civil forfeiture suit against an international client under State's RICO statute.
  • Retired FBI counterintelligence agent defends accusations of mishandling national security documentsJones Day represented a retired FBI counterintelligence agent accused of mishandling national security documents.
  • Currency exchange house agrees to improve anti-money laundering compliance programJones Day successfully represented client, a wholesale currency exchange house, during an investigation by the U.S. Department of Justice.
  • CEO of software manufacturing company resolves SEC enforcement action for insider tradingJones Day represented the CEO of a leading software manufacturing company and negotiated a favorable civil settlement in an enforcement action for insider trading brought by the Securities and Exchange Commission.
  • Speaking Engagements

    • May 11, 2020
      Unique Issues in Representing Individuals National Association of Criminal Defense Lawyers - West Coast White Collar Crime
    • November 19, 2019
      China, Economic Espionage, and National Security: Government & Defense Perspectives
    • September 28, 2019
      Science and Technology Caught Between the United States and China
    • June 29, 2019
      Caught in the Crossfire? Asian Americans in the U.S. China Conflict 46th Annual OCA National Convention
    • May 23, 2019
      Cross-border Litigation Panel Discussion, The Legal 500: Taiwan Dispute Resolution Forum 2019
    • April 4, 2019
      Pitfalls for All STEM Professionals in a New Era of US-China Relations
    • March 20, 2019
      Receives the Jim Robie Professionalism and Civility Award from the Los Angeles County Bar Association, Litigation Section
    • March 9, 2019
      The New Reality Facing Chinese Americans During the U.S.-China
    • February 16, 2019
      Forging Ahead: Confronting Today's Global Challenges, 18th Annual Penn APALSA Conference, University of Pennsylvania Law School
    • October 12, 2017
      Economic Espionage & National Security: Bias in the Criminal Justice System, sponsored by the U.S. District Court for the District of Minnesota, Minnesota Chapter of the Federal Bar Association, Minnesota Asian Pacific American Bar Association, Jones Day, and 3M
    • June 7, 2016
      Brian Sun Receives National Diversity Council’s Multicultural Leadership Award
    • May 4, 2016
      U.S. Laws Affecting Asian Americans in Science and Technology
    • May 26, 2015
      Cyber Security - The Road Ahead in 2015
    • November 7, 2014
      China and Asian Americans: The Law and Politics of U.S. National Security, 2014 NAPABA Convention: Hot Topics in Inside Counsel Outside Counsel Attorney Client Relationship Management
    • January 12, 2014
      Advanced Criminal Law: Winning Strategies for the Defense
    • November 8, 2013
      NAPABA Convention – Brian Sun Receives Trailblazer Award
    • March 28, 2013
      Protecting Corporate America's Trade Secrets
    • September 27, 2012
      Attorney Client Privilege Issues for the In-House Attorney: Practical Tips Regarding Preservation, Waiver and Avoiding Conflicts
    • January 28, 2012
      2012 JD MCLE: Trial Workshop
    • September 27, 2011
      2011 Speaker Series
      Asia-Pacific: Emerging Issues for U.S. Businesses in Australia and Asia
    • September 25, 2007
      ACCA-SoCal DoubleHeader Event at Dodger Stadium: Avoid the Warning Track ...Guiding Your Company in Crisis Management and Protecting its IP Assets
    • October 20, 2004
      Intellectual Property Crimes: What You Need to Know to Prevent Them and Stay Out of Trouble
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