You searched for: “compurgation
compurgation (s) (noun), compurgations (pl)
An acquittal from a legal charge or accusation, which is obtained by statements of innocence given by witnesses under oath: Compurgation is also called "oath-helping" and it makes it possible for the defendant to establish his or her innocence, or non-liability, by taking an oath and by getting a required number of people to swear they believe the defendant is telling the truth.