The Commission may appoint by written order hearing examiners, whose duties shall be defined in such order and who shall have all the inquisitorial powers and the right to require the appearance of witnesses and parties now possessed by the Commission. Hearing examiners may make either special investigations and reports for the information of the Commission, or, if so directed in such order, may conduct the hearing of any cause within the jurisdiction of the Commission, taking evidence upon such notice as is required. All hearing examiners shall report their findings to the Commission, and file therewith the testimony and exhibits received by them. The recommendations of such examiners shall be advisory only, and shall not preclude the Commission from taking further evidence. A copy of the examiner’s report shall be furnished to all parties to the proceeding in which the report is filed. The parties shall be allowed a reasonable time in which to respond and such responses shall become part of the record to be considered by the Commission in making a decision.