Acting U.S. Attorney John G.E. Marck was appointed to the Attorney General’s Advisory Committee of U.S. Attorneys, according to a June 2 announcement from the Department of Justice.
Marck’s appointment follows his leadership in one of the largest districts in the nation and highlights the role of the Southern District of Texas in addressing public safety and national security threats. The Advisory Committee, established in 1973, brings together U.S. Attorneys from across the country to advise Department of Justice leadership on policy, procedure, and management issues affecting federal prosecutors nationwide.
Members participate through subcommittees focusing on violent crime, national security, fraud, narcoterrorism and other priorities. “It is an immense honor to be appointed to the AGAC, and I am deeply grateful to Acting Attorney General Blanche for his confidence and trust in me,” said Marck. “The Southern District of Texas is home to some of the most dedicated federal, state and local law enforcement officers in the country, and I am proud to carry their work and their mission into this important forum.” Marck met with Acting Attorney General Todd Blanche and other committee members in May; their first substantive meeting is scheduled for later this month.
As chief federal law enforcement officer for one of the busiest districts nationally, Marck oversees prosecutions as well as civil cases involving government interests. Before becoming Acting U.S. Attorney he served as First Assistant overseeing criminal, civil and appellate divisions; previously he supervised teams handling complex national security cases including counterintelligence and cybercrime matters.
The Southern District covers 43 counties with over ten million residents across seven divisions headquartered in Houston with branch offices throughout South Texas—responsibilities that include prosecuting federal crimes such as drug trafficking or illegal reentry as well as defending government interests in civil matters, according to its official website. Notable past leaders include Alamdar Hamdani (2022-2025) among others, according to its official history page.