Miss. Code Ann. § 9-11-33: Miss. Code Ann. § 9-11-33

A justice court judge may correct any errors or mistakes in any proceedings that are conducted before such judge or in the records of proceedings conducted before such judge. A justice court judge may set aside any proceeding or judgment in a case conducted before such judge upon a written order as may be just and proper after a proceeding in which the judge determines that good cause has been shown to support such order.