The binding legal principles established are: (1) Where administrative conduct is challenged, and the Administrative Justice Act exists to give effect to section 68 of the Constitution, an applicant cannot rely directly on sections 68 and 85 of the Constitution unless alleging either the absence of the Administrative Justice Act or that its provisions fail to give effect to constitutional rights under section 68(1); (2) An employer's right to terminate a contract of employment on notice is a common law right, and statutory provisions such as section 12(4a)(c) of the Labour Act merely regulate that common law right rather than create it; (3) A constitutional challenge to employment termination must address the common law source of the termination right if it is to be competent and effective, not merely the statutory regulation of that right.