Assistant Sheriff Mark Elvin is responsible for the operation of the Detention Services Bureau of the Sheriff’s Department. In that capacity, he oversees seven detention facilities and an average daily inmate population of approximately 5,000.

A/S Elvin was hired by the Sheriff’s Department in 1989, he worked in the Detentions and Law Enforcement Bureaus as well as at the Training Division.

In 1999, Elvin was promoted to Sergeant and worked at the Las Colinas and Vista Detention Facilities. He served at the Encinitas and San Marcos Stations and in the Internal Affairs Unit.

In 2004, Mark was promoted to Lieutenant. He was assigned to the San Diego Central Jail and the Vista Detention Facility. He also served in the Emergency Services Division and in 2007 was the first lieutenant assigned to the newly built 4S Ranch Substation.

In 2008, Mark was promoted to Captain, assigned to the Human Resource Services Bureau-Training and the Poway Station. He was promoted to Commander in April 2011, and was appointed to Assistant Sheriff by Sheriff Gore in March 2012.

Assistant Sheriff Elvin holds a Bachelor of Science degree in Criminal Justice from Northern Arizona University, as well as a Master of Arts degree in Organizational Leadership from Azusa Pacific University.