All investigation documents shall be filed with the Commission's secretary at or before the time stated, with copies to the opposing party.
The investigation documents shall include a list of all witnesses to be called by the party with a summary of the witnesses' pertinent testimony, a copy of all documents, correspondence, records, files, and other materials to be offered at the hearing, a list of all statutes, cases, ordinances, rules and regulations to be offered in support of a position and subpoenas for all persons requiring subpoena for attendance at the Commission hearing.
The Commission secretary shall deliver to each Commission member a copy of all investigation documents. The investigation of the Commission shall be completed by delivery of the investigation documents. No additional documents or witnesses shall be offered at the hearing by either party except for good cause shown.