Wisconsin Statutes Testimony, Documentary Evidence and Presumptions (Ch. 885 to 891) § 885.06. Witness' fees, prepayment

(1) Except when subpoenaed on behalf of the state, of a municipality in a forfeiture action, or of an indigent respondent in a paternity proceeding, no person is required to attend as a witness in any civil action, matter or proceeding unless witness fees are paid or tendered, in cash or by check, share draft or other draft, to the person for one day's attendance and for travel.

(2) No witness on behalf of the state in any civil action, matter or proceeding, on behalf of either party in any criminal action or proceeding, on behalf of a municipality in a forfeiture action or on behalf of an indigent respondent in a paternity proceeding shall be entitled to any fee in advance, but shall be obliged to attend upon the service of a subpoena as therein lawfully required.