Willmar, Minn., Code of Ordinances ch. 6.5, art. II § 6.5-68

(a) The appropriate authority shall enforce the provisions of this article and is hereby authorized and directed to make inspections pursuant to one or more of the plans for inspection authorized by section 6.5-67 (a); or in response to a complaint that an alleged violation of the provisions of this article or of applicable rules or regulations pursuant thereto may exist, or when the appropriate authority has valid reason to believe that a violation of this article or any rules and regulations pursuant thereto has been or is being committed. In the event of a tenant complaint, the appropriate authority shall attempt to contact the manager or owner to verify and clarify the complaint prior to acting on the complaint.
(b) The appropriate authority is hereby authorized to enter and inspect between the hours of 8:00 a.m. and 5:00 p.m. all rental units subject to the provisions of this article for the purpose of determining whether there is compliance with its provisions.
(c) The appropriate authority is hereby authorized to inspect the premises surrounding dwellings, dwelling units, roominghouses, rooming units, dormitories and dormitory rooms subject to this article, for the purpose of determining whether there is compliance with its provisions.
(d) The appropriate authority and the owner, occupant or other person in charge of a rental unit subject to this article may agree to an inspection by appointment at a time other than the hours provided in subsection (b) of this section.
(e) The owner, occupant or other person in charge of a rental unit, upon presentation of proper identification by the appropriate authority, a copy of any relevant plan of inspection pursuant to which entry is sought, and a schedule of the specific areas and facilities to be inspected, shall give the appropriate authority entry and free access to every part of the rental unit or to the premises surrounding any of these.
(f) The appropriate authority shall keep confidential all information, exclusive of the inspection record, which it may discover or obtain in the course of an inspection made pursuant to this section and such information shall be considered privileged.
(g) If any owner, occupant, or other person in charge of a rental unit subject to licensing under section 6.5-69 fails or refuses to permit free access and entry to the structure or premises under his control or any part thereof with respect to which an inspection authorized by this article is sought to be made, the appropriate authority may, upon a showing that probable cause exists for the inspection and for the issuance of an order directing compliance with the inspection requirements of this section with respect to such dwelling, dwelling unit, rooming unit, multiple dwelling or roominghouse, petition and obtain such order from a court of competent jurisdiction. When required, the appropriate authority shall obtain the necessary order from the court to conduct the inspection.