A Mirak Bishop was a Mirak aristocrat. Bishops were the third highest in the civilian administration chain of command, behind cardinals and the Patriarch of the Mirak Star League. They usually ruled over planets of the Mirak Star League, although sparsely populated sectors could be ruled by a single bishop. When necessary, bishops could take command of the fleets stationed over their planets.
Numida abused his power over the military to engage in criminal activities such as piracy, using his planet's fleet. (RIS Bouteina: "Distress Call", "Take Me Out to the Zoo")