(a) A county, municipality, or joint airport may, by resolution or order of its governing body, provide for, or authorize its chief administrative officer, chief of police, or marshal to provide for, its regularly employed law enforcement officers to assist another county, municipality, or joint airport. This assistance may be provided only when the mayor or other officer authorized to declare a state of civil emergency in the other county, municipality, or joint airport considers additional law enforcement officers necessary to protect health, life, and property in the county, municipality, or joint airport because of disaster, riot, threat of concealed explosives, or unlawful assembly characterized by force and violence or the threat of force and violence by three or more persons acting together or without lawful authority.
(b) A county, municipality, or joint airport may, by resolution or order of its governing body, enter into an agreement with a municipality, joint airport, or county to form a mutual aid law enforcement task force to cooperate in criminal investigations and law enforcement. Peace officers employed by counties, municipalities, or joint airports covered by the agreement have only the additional investigative authority throughout the region as set forth in the agreement. The agreement must provide for the compensation of peace officers involved in the activities of the task force.

(c) A law enforcement officer employed by a county, municipality, or joint airport that is covered by the agreement may make an arrest outside the county, municipality, or joint airport in which the officer is employed but within the area covered by the agreement. The law enforcement agencies of the area where the arrest is made shall be notified of the arrest without delay, and the notified agency shall make available the notice of the arrest in the same manner as if the arrest were made by a member of that agency.