No law says a relation could not give evidence of what he knew, simply because he is related to the party in whose favour he is to give the evidence.All that is necessary, in such situation, is for the Court to warn itself of the danger of the likelihood of partisanship – see Idowu v. The State (2011) LPELR-3597 (CA) 69-70, D-B.
— O.O. Arowosegbe, J. Danjuma v Royal Salt Ltd. & Anor. (2020)