Complex sentence: Prior to his election, Campbell rose to the rank of Major with the Iredell County Sheriff's Office, overseeing all criminal and narcotics investigations, homicide investigations, community-oriented policing operations, and the Aggressive Criminal Enforcement Team.
Split into simpler sentences: Prior to his election, Campbell rose to the rank of Major with the Iredell County Sheriff's Office. He was responsible for overseeing all investigations, community-oriented policing operations, and the Aggressive Criminal Enforcement Team.