The foreman of every grand jury, the attorney general and the prosecuting attorney, or other prosecuting officer who shall be before them, shall have authority to administer all oaths and affirmations, in the manner prescribed by law, to witnesses who shall appear before such jury for the purpose of testifying in any matter of which they may have cognizance, and the foreman shall return to the court, or deliver to the prosecuting officer, a list of all the witnesses sworn before the grand jury in each case in which an indictment shall be found.
MCL 767.15