8 GCA § 50.58: Return of Indictment.

An indictment may be found only upon the concurrence of twelve (12) or more jurors. The indictment shall be returned by the grand jury to a judge in open court. If the defendant has been arrested and twelve (12) jurors do not concur in finding an indictment, the foreman shall so report to the court in writing forthwith.

When the name of the indicted person is unknown but his or her identity is established to the satisfaction of the grand jury by means of forensic Deoxyribonucleic Acid (DNA) testing of evidence, then such indictment shall be filed by the grand jury with the Court as a Special Fictitious Name Indictment. The authority to file a special fictitious name indictment pursuant to this Section shall be in addition to any other authority in law for the filing of an indictment when the name of an indicted person is unknown.