DZASIMATU AND OTHERS v DOKOSI AND OTHERS; Customary law—Dispute resolution—Arbitration or negotiated settlement—Essential requirements for binding arbitration—Dispute between K clan and O clan over entitlement to elect and install occupant of mankrado stool—Dispute submitted by parties first to RD and later TAT VI for resolution—Neither RD nor TAT VI disinterested persons—No evidence on manner of proceedings—Whether proceedings arbitration or negotiated settlement—Decision of TAT VI in favour of K clan superseding earlier one of RD in favour of O clan—Whether K clan owners of mankrado stool.