Lieutenant David Caballero joined UAPD in October 2002. After completing his basic and field training, David served as a patrol officer until April of 2005, at which time he was promoted to Corporal. In 2008, he tested for a Detective position, and upon being selected, was assigned to the Investigation Section. In 2013, David tested for Lieutenant and was placed on an eligibility list for future openings. On August 1st, 2014, Lieutenant Caballero was promoted to his present rank. He has served as a field training officer, physical training officer, and as a member of the UAPD Honor Guard. Prior to joining UAPD, Lieutenant Caballero served for 21 years in the Marine Corps, retiring in 2002 with the rank of Chief Warrant Officer 3.