In Massey v. State, 265 Ga. 632 (458 SE2d 818) (1995), the judge who presided over the trial and sentencing was a pro hac vice magistrate designated by the chief magistrate of Fulton County pursuant to OCGA 15-1-9.1. The court in Massey held that this "judge of the magistrate court, qualified to serve on the superior court, who was requested by the superior court in time of need to exercise the judicial power of superior court, to which request the magistrate court assented," was authorized to sit for the superior court judge. Id. at 633.