Byron Tuyay

Prior to joining the firm, Byron handled the following matters: Acted as government trial counsel in a health care fraud and money laundering conspiracy matter in the United States District Court for the Central District of California. Acted as government trial counsel in a drug distribution and National Firearms Act matter stemming from investigation on tribal land in the United States District Court for the Central District of California. Acted as government counsel in appeal involving Fourth Amendment search and seizure issues in the United States Court of Appeals for the Ninth Circuit resulting in affirmance of trial court's order in government's favor. Represented Texas-based promotional products manufacturer and supplier in DOJ price fixing matter in the United States District Court for the Southern District of Texas. Defended executive in collegiate sports marketing industry in DOJ grand jury investigation into suspected antitrust violations. Defended financial industry executive in securities fraud matter in the United States District Court for the District of Massachusetts. Represented multinational hard disk drive manufacturer in connection with European competition authority cartel investigation and advised on antitrust compliance matters. Represented logistics industry executive in DOJ investigation involving bid rigging and price fixing allegations among fuel suppliers to US military bases in the Republic of Korea.

On April 2, 2025, California Attorney General Rob Bonta issued a Legal Advisory ("Advisory") reminding businesses operating in California that it is illegal to make payments to foreign government officials to obtain or retain business. This Advisory followed the Trump Administration's Executive Order issued in February largely suspending enforcement of the Foreign Corrupt Practices Act (FCPA), which prohibits bribing foreign government officials to obtain or retain business and requires companies to maintain accurate books and records.

Co-author

In the last two years, the United States Department of Justice Antitrust Division’s (“Antitrust Division”) criminal enforcement program has encountered a streak of trial losses in cases involving alleged conspiracies to fix wages and restrict hiring practices among competitors in labor markets. With its first four trials involving alleged labor market abuse ending in acquittals, the Antitrust Division faces a growing chorus of skeptics. The Antitrust Division’s recent struggles at trial, however, are not unprecedented in the United States Department of Justice’s (“DOJ”) long history of trying complex criminal cases. As explained in this article, the challenges that the Antitrust Division faces in prosecuting labor-related conspiracies resemble challenges that DOJ prosecutors overcame in insider trading and market manipulation prosecutions over the last decade.

Co-author