Christian is a litigation partner in DLA Piper's Houston office. He represents U.S. and non-U.S. corporations and individuals in government investigations and advises on regulatory compliance and national security matters.

Prior to joining DLA Piper, Christian served as a federal prosecutor and senior official in the U.S. Department of Justice. As a trial attorney in the Department of Justice's Counterintelligence and Export Control Section, Christian managed complex cross-border investigations spanning numerous countries and involving large multinational corporations, as well as U.S. and non-U.S. individuals. His investigations focused on a wide range of violations, both civil and criminal, including economic sanctions and export controls, theft of trade secrets, money laundering, insider threats, and cyber intrusions. Christian was also a Deputy Assistant Attorney General in the Office of Legal Policy (OLP), where he managed national security and crime prevention portfolios.

Prior to joining the Department of Justice, Christian was an Associate Deputy General Counsel at the Department of Defense, where he advised on complex national security litigation.

Christian is also a veteran and former Navy SEAL.