If the jury finds the defendant presently insane, the trial or judgment must be suspended until he becomes sane, and if the jury deem his discharge dangerous to the public peace or safety, the court shall order that the defendant be committed to one of the state hospitals for the mentally ill, and to be held therein and kept as a patient and inmate until he be discharged and released as presently sane by the authority of the superintendent of said hospital. A release by the superintendent of said hospital shall be to the custody of the sheriff of the county in which the criminal case theretofore suspended is or was pending and from which he was committed. The court having jurisdiction thereof shall set the cause for trial.