1. State grand jurors must be summoned in the same manner and must be governed by the same provisions as jurors of county grand juries. Judicial supervision of the state grand jury must be maintained by the judge who granted the order impaneling the state grand jury in the same manner as with county grand juries. All indictments or other formal returns of any kind made by the state grand jury must be returned to that judge. An indictment may be found only upon the concurrence of at least six jurors.
2. The presentation of the evidence must be made to a state grand jury by the attorney general, an assistant attorney general, or special counsel appointed by the attorney general.
3. Any indictment by a state grand jury must be returned to the supervising judge without any designation of venue. Thereupon the judge shall designate the county of venue for the purposes of trial.