BOGYA v. BOAKYE Defamation—Slander—Evidence—Allegation that defendant authorised gong-gong to be beaten to the effect that plaintiff was a thief who stole other people's livestock—Denial by defendant that he authorised gong-gong to be beaten to the effect complained of by plaintiff—Message of defendant given to gong-gong beater through intermediary—Failure of plaintiff to call intermediary as witness—Message of defendant not heard directly from defendant by any of witnesses called by plaintiff—Conflicting evidence as to message of gong-gong beater—Failure to establish that defendant published or authorised publication of words complained of by plaintiff—Effect.