The affidavit of any subscribing witness to a will, made before and certified by any officer in the state competent to administer oaths, shall be received as a substitute for the personal attendance of the affiant to prove the will where there is no contest about it.
Affidavit of subscribing witness receivable
Miss. Code Ann. § 91-7-9, under Executors and Administrators.
Miss. Code Ann. § 91-7-9