Minn. Stat. § 343.12: DUTIES OF PEACE OFFICERS.

Upon application of any agent appointed by the federation or a county or district society, it shall be the duty of, any sheriff or the agent's deputy or any police officer to investigate any alleged violation of the law relative to cruelty to animals, and to arrest any person found violating those laws. It shall also be the duty of those officers to take possession of any animals in their respective jurisdictions which have been cruelly treated, and deliver the same to the proper officers of the county or district for custody and care.