ADUSAH v. ATTORNEY-GENERAL Statutes—Construction—A.F.R.C.D. 23, s. 3 (2) (a) and (b)—Purpose of—Whether maxim expressio unius est exclusio alterius applicable in construing section—Armed Forces Revolutionary Council (Special Tribunal and Other Matters) Decree, 1979 (A.F.R.C.D. 23), s. 3 (2) (a) and (b).