MUSAH AND ANOTHER v. TALI Land administration—Skin lands—Minister’s concurrence—Tamale lands—Title to disputed land in skin—Parties obtaining grant to disputed land from same skin—Co-defendant's grant earlier in time but only plaintiff's grant concurred in by Lands Commission—Co-defendant obtaining customary grant as of right to free use of land—Whether grant to co-defendant governed by Act 123, s. 8—Whether lack of minister's concurrence invalidating grant—Administration of Lands Act, 1962 (Act 123), s. 8.