Minn. Stat. § 12.331
Subd. 1. Authority between political subdivisions.
When the public interest requires it because of an emergency, a political subdivision may request the assistance of another political subdivision. Upon receiving such a request, a political subdivision, called the "sending political subdivision," may go to the assistance of the requesting political subdivision, called the "receiving political subdivision." The receiving political subdivision may accept and use the personnel, equipment, and supplies of the sending political subdivision as agreed upon by both political subdivisions.
Subd. 2. Responsibility for use of personnel, equipment, supplies.
Subd. 3. Retroactive effect.
Notwithstanding other laws this section is effective retroactive to March 29, 1998.