Wisconsin Statutes Consumer Transactions (Ch. 421 to 429) § 426.106. Investigatory powers

(1) At any time that the administrator has reason to believe that a person has engaged in or is about to engage in an act which is subject to action by the administrator, the administrator may make an investigation and, with respect thereto, may administer oaths or affirmations, and, upon the administrator's own motion or upon request of any party, may subpoena witnesses, compel their attendance, adduce evidence, and require the production of any matter, including the existence, description, nature, custody, condition and location of any books, documents or other tangible things, and the identity and location of persons having knowledge of relevant facts, or any other matter reasonably calculated to lead to the discovery of admissible evidence, and the administrator shall have the right of access to and of examination of such books, documents or other tangible things. In any civil action brought on behalf of the administrator following such an investigation, the administrator may recover the administrator's costs of making the investigation if the administrator prevails in the action.

(2) If 5 or more persons file a verified complaint with the administrator alleging that a person has engaged in an act which is subject to action by the administrator, the administrator shall immediately commence an investigation pursuant to sub. (1).

(3) If the person's records are located outside this state, the person at the person's option shall either make them available to the administrator at a convenient location within this state or pay the reasonable and necessary expenses for the administrator or the administrator's representative to examine them at the place where they are maintained. The administrator may designate representatives, including comparable officials of the state in which the records are located, to inspect them on the administrator's behalf.

(4) Upon failure without lawful excuse to obey a subpoena or to give testimony and upon reasonable notice to all persons affected thereby, the administrator may apply to any court of record for an order compelling compliance.