9-406. DENIAL BY SUBSCRIBING WITNESS -- PROOF BY OTHER EVIDENCE. If the subscribing witness denies or does not recollect the execution of the writing, its execution may still be proved by other evidence.
Idaho Code § 9-406, under PRIVATE WRITINGS.
Idaho Code § 9-406
9-406. DENIAL BY SUBSCRIBING WITNESS -- PROOF BY OTHER EVIDENCE. If the subscribing witness denies or does not recollect the execution of the writing, its execution may still be proved by other evidence.