Minn. Stat. § 629.30: ARRESTS; BY WHOM MADE; AIDING OFFICER.

Subdivision 1. Definition.

Arrest means taking a person into custody that the person may be held to answer for a public offense. "Arrest" includes actually restraining a person or taking into custody a person who submits.

Subd. 2. Who may arrest.

An arrest may be made:

(1) by a peace officer under a warrant;

(2) by a peace officer without a warrant;

(3) by an officer in the United States Customs and Border Protection or the United States Citizenship and Immigration Services without a warrant;

(4) by a private person.

A private person shall aid a peace officer in executing a warrant when requested to do so by the officer.