Ronald Cheng


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Ron Cheng handles both anti-corruption and data security and privacy matters and is co-located in Hong Kong and Los Angeles. He is one of very few Mandarin-speaking attorneys with experience in both US and Chinese criminal law enforcement. Ron served over 22 years at the US Attorney’s Office for the Central District of California. During that tenure, he argued more than 35 cases before the Ninth Circuit, including two en banc, and served as lead counsel or co-lead counsel in roughly 20 federal felony jury trials.


Corporate & Government Experience

  • Assistant US Attorney, US Attorney's Office, Central District of California (USAO/CAC); member, Cybercrime and Intellectual Property Crimes Section (2007-2015)
  • Department of Justice’s Resident Legal Advisor, US Embassy in Beijing (2005-2007)
  • Section Chief, Criminal Appeals Section, USAO/CAC (2002-2005)
  • Chief of Criminal Division, USAO/CAC (2001-2002)
  • Deputy Chief, Criminal Division, USAO/CAC (1999-2001)
  • Assistant US Attorney, USAO/CAC, in the Training, Criminal Appeals, and Major Crimes Sections (1992-1999)


  • Mandarin Chinese

Honors & Awards

  • Recognized as one of the “Most Influential Lawyers” in the areas of White Collar and Cyber Crime by the Los Angeles Business Journal (2015)


Bar Admissions

  • California
  • Hong Kong (registered foreign lawyer)

Court Admissions

  • US District Court for the Central District of California
  • Court of Appeals for the Ninth Circuit


  • Columbia University, J.D., 1988; Harlan Fiske Stone Scholar, 1985-1988; current developments editor, Columbia Journal of Transnational Law, 1987-1988 
  • Yale University, B.A., 1985: summa cum laude, distinction in the major, Phi Beta Kappa

Professional Activities


  • Honorable Alicemarie H. Stotler, US District Court for the Central District of California, 1988-1989
  • Honorable Ferdinand F. Fernandez, US Court of Appeals for the Ninth Circuit, 1989-1990



  • AmCham Shanghai, “Cybersecurity Law Implementation Update,” (September 11, 2017)
  • International Association of Privacy Professionals meeting “US-China Data Security,” (August 21, 2017)
  • Association of Corporate Counsel (ACC) in Singapore, “International Cybercrime: The Law Enforcement Dimension,” (March 14, 2017)
  • Financial Services Information Sharing and Analysis Center (FS-ISAC), Asia webinar on China Cyber Security Law (February 14, 2017)
  • American Chamber of Commerce in Japan, “International Cybercrime: The Law Enforcement Dimension,” (November 18, 2016)


  • PRC Consulate, Los Angeles, “Doing Business in the US: Issues Facing Foreign Businesses,” (April 2, 2019)
  • University of California, Los Angeles, “Comparative Counterterrorism Law and Policy: Cybercrime and the US-China Relationship,” (March 6, 2018)
  • University of Southern California, “Criminal Cyber Law and Policy: Cybercrime and the US-China Relationship,” (February 13, 2018)