The state court administrator, upon receipt of an order of a chief judge of the district court granting a petition to impanel a judicial district grand jury, shall prepare a list of prospective judicial district grand jurors drawn from existing jury lists of the several counties within the district. In preparing the list of prospective judicial district grand jurors, the state court administrator need not include names of jurors from every county within the district, but the state court administrator may select jurors from counties near the county in which the chief judge requesting the list presides. The chief judge granting the order shall impanel the judicial district grand jury from the list compiled by the state court administrator. A judicial district grand jury shall be composed of twelve or twenty-three members, as provided in section 13-72-102. The members of the judicial district grand jury shall be selected by the chief judge with the advice of the district attorney. The chief judge may close to the public part or all of the selection process when reasonably necessary to protect the grand jury process or the security of the grand jurors. The length of term served by a judicial district grand jury shall be as provided in section 13-71-120. The court, upon its own motion or at the request of the district attorney, shall enter an order to preserve the confidentiality of all information that might identify judicial district grand jurors when reasonably necessary to protect the judicial district grand jury process or the security of the judicial district grand jurors. In the absence of such an order, upon request, the state court administrator shall make available for inspection by members of the public a list of judicial district grand jurors containing only the judicial district grand jurors' names and juror numbers.