Christian Ladner serves as Vice President of Client Risk Management for Global Guardian, where he advises Fortune 500 organizations, multinational corporations, and executive leadership teams on enterprise risk management, crisis response, executive protection, travel risk management, and duty of care programs.

Christian began his federal law enforcement career in 1997 with the United States Marshals Service in New Orleans, Louisiana. As a Deputy U.S. Marshal, he held assignments in judicial security, protective service details, and federal fugitive investigations. In 2001, he transferred to the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), within the United States Department of Justice. As an ATF Special Agent, he primarily investigated federal firearms trafficking offenses and armed narcotics trafficking organizations.

In 2007, Christian was selected to serve on the ATF Special Response Team (SRT) based in Dallas, Texas. During his twelve years on SRT, he participated in, planned, and led high-risk enforcement operations nationwide. He served as both an entry team member and a sniper. Prior to retiring from federal service in 2019, Christian's final assignment with ATF was as the Firearms and Tactical Training Program Manager at ATF Headquarters in Washington, D.C. In this role, he oversaw all firearms, tactical, and use-of-force training for approximately 3,000 ATF Special Agents. He also supervised a cadre of fifty field-based firearms instructors and tactical trainers and managed the testing, evaluation, acquisition, and deployment of agency weapon systems.

Throughout his law enforcement career, Christian served as a Firearms Instructor, Tactics Instructor, Master Taser Instructor, and Defensive Tactics Instructor. He instructed at the Federal Law Enforcement Training Center (FLETC), the ATF National Academy, the ATF SRT Basic School, and the International Law Enforcement Academy in San Salvador, El Salvador. Additionally, he served as an Adjunct Instructor for Louisiana State University's Academy of Counter-Terrorism Education, where he delivered U.S. Department of Homeland Security active threat and active shooter training to local and state law enforcement agencies, schools, houses of worship, and non-governmental organizations across the United States.

Prior to beginning his law enforcement career, Christian served five years as an active-duty U.S. Army Military Intelligence officer. Following his retirement from federal law enforcement, he entered the private sector as Chief Security Officer for Intralox, LLC, a multinational manufacturing company