In Adam vs. Ikhano (1988) 4 NWLR (Pt. 89) 478 it was held that where there is a dispute as to the validity of a WILL, the primary onus of proof is on the party who propounds it to show clearly that prima facie it is duly executed. Once the primary onus is discharged, the secondary onus of proof of the allegation that the WILL is not properly executed or that it is tainted with fraud or forgery shifts unto the party challenging its proper execution to substantiate his allegations. See also Omorhirhi vs. Enatevwere (1988) 1 NWLR (Pt. 73) 476 and Okoli vs. 1st Bank (1986) 5 NWLR (Pt. 46) 1052.
ALTERATION BEFORE OR AFTER WILL IS IMMATERIAL AS FAR WILLS LAW IS COMPLIED WITH
Whether the alteration were made before or after the will was executed in this particular case, the truth is that it (ie., the alterations) complied with section 14 of the Wills Law of Lagos state (supra) Since the Testator initialed all alterations.
— J.I. Okoro, JCA. Mudasiru & Ors. v Abdullahi & Ors. (2011) – CA/L/58/2010