Miss. Code Ann. § 11-9-107: Miss. Code Ann. § 11-9-107

When any process has not been returned by a constable within ten (10) working days after issuance by the clerk of the justice court, the clerk shall direct the sheriff of his county and his deputies to execute any such process of the justice court; and the sheriff and his deputies shall execute any process so directed to him by any clerk of the justice court.