Wis. Stat. § 111.11

The commission may appoint any competent, impartial, disinterested person to act as mediator in any labor dispute either upon its own initiative or upon the request of one of the parties to the dispute. It shall be the function of such mediator to bring the parties together voluntarily under such favorable auspices as will tend to effectuate settlement of the dispute, but neither the mediator nor the commission shall have any power of compulsion in mediation proceedings. The commission shall provide necessary expenses for such mediators as it may appoint, order reasonable compensation not exceeding $10 per day for each such mediator, and prescribe reasonable rules of procedure for such mediators.