Tennessee Code Title 38. Prevention and Detection of Crime § 38-8-301

(1) “Committee” means a police advisory and review committee;

(2) “Head of a law enforcement agency” means a chief of police of a municipal police force or a county sheriff, as applicable;

(3) “Internal affairs unit” means a division of a local law enforcement agency that investigates allegations of misconduct by law enforcement officers employed by the agency;

(4) “Law enforcement officer” means any person employed by any law enforcement agency of a local government entity, excluding a head of a law enforcement agency, who has a duty imposed by law to:

(5) “Local governing body” means the city council, city commission, county commission, metropolitan council, or board of mayor and aldermen of a city;

(6) “Local government entity” means any city, town, municipality, county, including any county having a metropolitan form of government in this state;

(7) “Local law enforcement agency” means:

(8) “Mayor” means the officer vested by either the city or county charter or general law with the executive powers of a local government entity.