Wis. Stat. § 968.05: Corporations or limited liability companies: summons in criminal cases.

(1) When a corporation or limited liability company is charged with the commission of a criminal offense, the judge or district attorney shall issue a summons setting forth the nature of the offense and commanding the corporation or limited liability company to appear before a court at a specific time and place.

(2) The summons for the appearance of a corporation or limited liability company may be served as provided for service of a summons upon a corporation or limited liability company in a civil action. The summons shall be returnable not less than 10 days after service.