(1) This subchapter shall be enforced in the name and on behalf of the state by the attorney general or, upon the verified complaint of any person, by the district attorney of any county wherein a violation may occur. In actions brought by the attorney general, the court shall award any forfeiture recovered together with reasonable costs to the state; and in actions brought by the district attorney, the court shall award any forfeiture recovered together with reasonable costs to the county.
(2) In addition and supplementary to the remedy provided in s. 19.96, the attorney general or the district attorney may commence an action, separately or in conjunction with an action brought under s. 19.96, to obtain such other legal or equitable relief, including but not limited to mandamus, injunction or declaratory judgment, as may be appropriate under the circumstances.
(3) Any action taken at a meeting of a governmental body held in violation of this subchapter is voidable, upon action brought by the attorney general or the district attorney of the county wherein the violation occurred. However, any judgment declaring such action void shall not be entered unless the court finds, under the facts of the particular case, that the public interest in the enforcement of this subchapter outweighs any public interest which there may be in sustaining the validity of the action taken.
(4) If the district attorney refuses or otherwise fails to commence an action to enforce this subchapter within 20 days after receiving a verified complaint, the person making such complaint may bring an action under subs.
(1) to (3) on his or her relation in the name, and on behalf, of the state. In such actions, the court may award actual and necessary costs of prosecution, including reasonable attorney fees to the relator if he or she prevails, but any forfeiture recovered shall be paid to the state.
(5) Sections 893.80 and 893.82 do not apply to actions commenced under this section.