Chief Harmon joined the city's Police Department in 1982, and was named police chief in 2001. He oversees all police operations for Florida's fourth largest city, a department with 805 sworn and non-sworn positions in three bureaus: Investigative Services, Uniform Services, and Administrative Services. In 2003, he oversaw the departments fourth national reaccreditation and first state accreditation.
He holds associate's degrees in general studies and criminal justice from Brevard Community College, a bachelor's degree in criminology from Florida State University and a master's degree in public administration from Troy State University. He is a graduate of Leadership St. Pete.
Chief Harmon is honorary executive director of the St. Petersburg Athletic League and is on the boards of the Enterprise Zone Development Agency and the Tampa Bay Area Police Chiefs Association. He serves on the Southeastern Public Safety Institute Advisory Committee and volunteers with the Urban League Crime Run, American Heart Association and community paint projects.