REPUBLIC v. NANA AKUAMOAH BOATENG II; EX PARTE  DANSOA AND ANOTHER Courts—Appellate court—Findings of fact—Appellate court slow in reversing decision of trial court based on credibility of witnesses—Factual conclusion by trial court resting not only on oral evidence but on contemporaneous documents by principal witnesses—Existence of conflict in oral evidence—Court to hold documentary evidence as material.