Hearings conducted before the Public Service Commission shall be conducted under dignified and orderly procedures designed to protect the rights of all parties. All persons appearing in a representative capacity before the Commission in its proceedings should conform to the standards of ethical conduct required of attorneys practicing before the courts of this State. Any person, firm or corporation who disregards Commission orders after due notice or who engages in conduct calculated to bring the due and orderly course of Commission proceedings into disrespect or disregard, or to interfere with or prejudice parties litigant or their witnesses during the proceedings may, by order of the Commission or its presiding officer be ejected for the remainder of that day from such proceedings. If that person, firm or corporation engages in further conduct resulting in ejection for a second day or portion thereof in the same proceeding he shall also be declared in contempt and cited for such to any circuit judge, who may punish by a fine not to exceed five hundred dollars or imprisonment not to exceed thirty days, or both. Such proscribed conduct shall include, but not be limited to, any person, firm or corporation intentionally delaying the proceedings by the injection of matters determined not to be relevant after a proper warning that such matters shall not be pursued.

The above provision shall not be construed as limiting any powers of the Commission under existing law.