[5] Larson represents former USC water polo coach Jovan Vavic in the highly publicized “Varsity Blues” college admissions case against racketeering, conspiracy, and fraud charges.
[6] He also represents tax agent Ramin Salari charged alongside former Los Angeles County Assessor John Noguez in a public corruption case.
On May 22, 2020, Larson obtained the dismissal before the California Court of Appeal of two separate cases charging Mr. Salari with numerous counts of bribery, embezzlement, and tax fraud—charges which were recently re-filed in a pair of new complaints.
As chief of the office's organized crime section, Larson conducted joint training exercises and investigations with foreign law enforcement agencies in Russia, Kazakhstan, Estonia, Latvia, Poland, Ukraine, and South Korea.
[12] Important cases he presided over included United States v. Nazario, involving a former Marine sergeant ultimately acquitted of manslaughter for his role in four fatal shootings during the Battle of Fallujah in Iraq; Mattel v. MGA Entertainment, the so-called "Bratz doll" case involving copyrights and trade secrets; and United States v. Duro, in which Larson blocked the U.S. Bureau of Indian Affairs' decade-long effort to close down a major migrant worker camp on the Torres Martinez Indian Reservation in the Coachella Valley.
Larson's push to suppress intercepted communications helped lead to the court's finding of broad government misconduct and, ultimately, a dismissal of charges against his client.
[16] In December 2015, Larson argued before the U.S. Supreme Court on behalf of Arizona voters challenging the constitutionality of unequally populated voting districts created by a state commission.
[8] Upon co-founding his firm in January 2016, Larson was quickly tapped that February to file a legal brief supporting the U.S. government's efforts to force Apple Inc. to unlock the encrypted iPhone belonging to one of the shooters in the 2015 San Bernardino attack.
[11] Larson's 2017 defense of Mr. Burum at trial in People v. Biane et al. led to a full acquittal and a formal apology from the FBI regarding misstatements by agents following a search and seizure.
[25] On October 21, 2020, the General Assembly of the Office of American States (OAS) elected Larson to the Inter-American Juridical Committee for a four-year term beginning on January 1, 2021.