Hearings shall be open to the public and limited to the litigation of and oral argument on issues of fact or law regarding whether there exists a question for resolution by referendum among the eligible employees in the unit involved. The commission or examiner conducting the hearing shall inquire fully into all matters in issue, to obtain a full and complete record upon which the duties of the commission under s. 111.70(2), Stats., may be properly performed. Practice and procedure for hearings in referendum proceedings shall otherwise be as set forth in s. ERC 18.08.
Wis. Admin. Code Employment Relations Commission ERC 15.09