.07 Presiding Officer — Duties.

Each hearing shall be held before not less than a quorum of the Board. The Chairman, or in his absence, a member designated by him, shall be the presiding officer, and shall have complete charge of the hearing, permit the examination of witnesses, admit evidence, rule on the admissibility of evidence, and adjourn or recess the hearing from time to time. The Chairman or any member of the Board shall have the authority to administer the oaths to all witnesses testifying in the proceeding.