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U.S. Marshals Service

District of Colorado

United States Marshal John L. Kammerzell

John L. Kammerzell

U.S. Marshal John Kammerzell


John L. Kammerzell, a Colorado native son, was appointed by President Barack Obama, on December 29, 2009, to serve as the 30th United States Marshal for the Federal District of Colorado.  He began his term as United States Marshal on January 11, 2010.   Although new to the United States Marshal’s Service, Marshal Kammerzell is not new to Colorado Law Enforcement.  He began his law enforcement career as a Colorado State Patrol Patrolman on July 8, 1972.

Marshal Kammerzell has served the citizens of the state of Colorado for over 37 years, and has served at all levels of law enforcement: as the elected Rio Grande County Sheriff; and as the Undersheriff, Operations Division Commander and Patrol Supervisor of the Larimer County Sheriff’s Office.  Marshal Kammerzell served as the Executive Director of the County Sheriff’s of Colorado from 1990 through 1996. Most recently, his service as the director of the Colorado Peace Officer Standards and Training Board allowed him to work in partnership with local, state and federal law enforcement agencies.

His extensive law enforcement education includes the 144th Session of the FBI National Academy in Quantico, Virginia, training programs at the National Fire Academy/FEMA in Emmitsburg, Maryland, and leadership programs conducted by the Community Policing Consortium.

Marshal Kammerzell is extremely proud to be part of the nation’s oldest and most prestigious law enforcement organization and considers the appointment to this position to be the crown jewel in his law enforcement career.  

Historical Listing of United States Marshals for the District of Colorado is an official site of the U.S. Federal Government, U.S. Department of Justice