Minneapolis, Minn., Code of Ordinances § 12 § 244.80

(a) In addition to the punishments provided in this Code of Ordinances, the city through the officer charged with the enforcement of the various provisions of the housing maintenance code, or any person with standing to sue may seek enforcement thereof in any court of competent jurisdiction by any appropriate form of civil action and may seek enjoinment of any continued violation thereof and seek to compel obedience thereto by mandatory orders and writs.
(b) No tenancy of a dwelling, dwelling unit, two-family dwelling or multiple dwelling covered by the housing maintenance code may be terminated because of the commencement of an action pursuant to this section or because of the report to the proper code enforcement authorities of a condition believed to be in violation of the housing maintenance code. In any action brought for the restitution of premises covered by the housing maintenance code, the lessee may show that notice of termination was received subsequent to the making of a violation report to the proper enforcement authorities or subsequent to the commencement of an action pursuant to this section. Such evidence shall be prima facie proof that the tenancy was terminated in violation of this section. The lessor may rebut the presumption of illegal termination through proof that the termination was for other good cause, including nonpayment of rent, or by showing that in fact no report of a violation was made or an action commenced, prior to notice to terminate being given. (Code 1960, As Amend., § 66.080)