Assistant Chief Sommerfeld has been serving the University community since 1986. During his tenure with UAPD he has held the ranks of Officer, Corporal, Sergeant and Commander and the positions of Field Training Officer, Armorer, Mobile Field Force Instructor, Pepperball Instructor and Accreditation Manager. His previous assignments include supervising Patrol, Traffic, Training, Detective Unit, Professional Standards Investigations, and the Field Operations Division Commander. Assistant Chief Sommerfeld received his Bachelor of Arts in Business Management and Public Administration from the University of Phoenix in 1997 and his Masters of Management and Business Administration from the University of Phoenix in 2006. Assistant Chief Sommerfeld is a graduate of the 224th session of the FBI National Academy and graduate of the 230th session of the FBI-LEEDA Executive Leadership Institute. During his tenure with UAPD he also served with the Arizona Air National Guard as a Security Policeman retiring in 2009 after 28 years of military service and served with the United Nations Civilian Police Force in Eastern Slavonia (former Yugoslavia) in 1996-1997.