(a) Summoning Grand Juries. The superior court shall order a grand jury to be summoned and convened at such time and for such duration as the public interest requires, in the manner prescribed by law. The grand jury shall consist of no fewer than twelve nor more than twenty-three members. The grand jury shall receive, prior to performing its duties, instructions relative thereto and shall be sworn in accordance with law. Such instructions may be given by a justice of the superior court, by utilization of a prerecorded audio or video presentation created for this purpose, or by a combination of use of a recording and instruction by a justice.
(b) Conduct of Proceedings
(1) State's counsel or the foreperson of the grand jury shall swear and examine witnesses. The State shal