Wis. Admin. Code Department of Natural Resources NR 2.10
The department, the administrative law judge, on the judge's own motion or at the request of a party, or any attorney of record for a party in a contested case hearing may issue subpoenas to compel the attendance of witnesses at contested case hearings or discovery proceedings under s. NR 2.11. A subpoena requiring the production of documents may be issued if the person issuing the subpoena specifies the documents to be presented by the subpoenaed witness. Sections 814.67, 885.06 and 885.07, Stats., shall govern the payment of witness fees and expenses. For good cause shown, the administrative law judge may issue orders to protect persons or parties from annoyance, embarrassment, oppression or undue burden, as provided in s. 804.01(3), Stats.
Wis. Admin. Code Department of Natural Resources NR 2.10