(a) The district judge shall appoint one (1) of the jurors to be foreman. The foreman is authorized to administer oaths to witnesses and shall sign indictments as provided by W.S. 7-5-104.
(b) Before entering upon their duties, an oath or affirmation shall be administered to the foreman and each of the jurors providing, in substance, that each of them will:
(i) Diligently inquire into all matters coming before them;
(ii) Find and present indictments truthfully and without malice, fear of reprisal or hope of reward; and (iii) Keep secret matters occurring before the grand jury unless disclosure is directed or permitted by the court.