O.C.G.A. § 15-13-4: Rule nisi; service.

The judges of the superior courts, judges of the probate courts, and magistrates, respectively, upon application, may grant rules nisi against all officers subject thereto, which rules nisi shall contain a full statement of the case in which the officer is called upon to show cause and also of the time and place of hearing. The officer called on by the rule nisi shall be served with a copy thereof within a reasonable time before the hearing.