Wis. Stat. § 302.07

The warden or superintendent shall maintain order, enforce obedience, suppress riots and prevent escapes. For such purposes the warden or superintendent may command the aid of the officers of the institution and of persons outside of the prison; and any person who fails to obey such command shall be punished by imprisonment in the county jail not more than one year or by a fine not exceeding $500. The warden or superintendent may adopt proper means to capture escaped inmates.