Minn. Stat. § 179.08
(c) Any party to or party affected by the dispute may appear before the commission in person or by attorney or by their representative, and shall have the right to offer competent evidence and to be heard on the issues before the report of the commission is made.
Any commissioners so appointed shall be paid a per diem allowance not to exceed that established for arbitrators in section 179A.16, subdivision 8, and their necessary expenses while serving.