Miss. Code Ann. § 11-37-149: Miss. Code Ann. § 11-37-149

If a third person, not a party to the action of replevin, shall claim to be the owner or entitled to the possession of goods or chattels involved in a replevin action, he shall not be allowed to institute another action of replevin while the former is pending, but may intervene in said action and present his claim under oath.