Mississippi Constitution Art. 6, § 146

The Supreme Court shall have such jurisdiction as properly belongs to a court of appeals and shall exercise no jurisdiction on matters other than those specifically provided by this Constitution or by general law. The Legislature may by general law provide for the Supreme Court to have original and appellate jurisdiction as to any appeal directly from an administrative agency charged by law with the responsibility for approval or disapproval of rates sought to be charged the public by any public utility. The Supreme Court shall consider cases and proceedings for modification of public utility rates in an expeditious manner regardless of their position on the court docket.