In this chapter:
(1) "Joint airport" means an airport that is operated jointly by two municipalities and that is situated in two counties.
(2) "Law enforcement officer" means a municipal police officer, sheriff, deputy sheriff, constable, deputy constable, marshal, deputy marshal, investigator of a district attorney's, criminal district attorney's, or county attorney's office, or police officer of a joint airport who has been commissioned as a peace officer under the laws of this state.
(3) "Multicounty drug task force" means a mutual aid law enforcement task force that is established as a multicounty law enforcement cooperation between counties and municipalities to enhance multicounty interagency coordination, acquire intelligence information, and facilitate multicounty investigations of drug-related crimes.