§9–715.

    (a)    The Commission may conduct an investigation in the manner that the Commission finds best to:

        (1)    determine the substantial rights of each party; and

        (2)    carry out justly the spirit of this title.

    (b)    Except as otherwise provided in this title, the Commission is not bound by:

        (1)    any common law or statutory rule of evidence; or

        (2)    any formal or technical rule of procedure.