8 GCA § 105.22: When Jury Can be Discharged.

(a) The jury cannot be discharged after the cause is submitted to them until they have agreed upon their verdict and rendered it in open court, except:

(1) By consent of both parties, entered upon the minutes;

(2) At the expiration of such time as the court may deem proper, if it satisfactorily appears that there is no reasonable probability that the jury can agree; or

(3) If one of the jurors becomes ill, or by any other accident or cause, the jury is prevented from continuing its deliberations.

(b) In any case, where a jury is discharged pursuant to Subsection (a), the cause may be tried again.