The binding legal principles established are: (1) A Minister's general power to give policy directions under section 313 of the Urban Councils Act does not authorize the Minister to vary, alter or override express specific provisions of the same Act, particularly section 96(10) which specifies the composition of standing committees; (2) Statutory provisions must be interpreted as internally consistent, with general provisions not conflicting with specific provisions; (3) The principle expressio unius est exclusio alterius applies to section 96(10) - where the statute expressly lists persons entitled to attend standing committee meetings, all other persons are excluded by implication; (4) Even where a Minister has power to issue directives under section 313, the procedural requirements of section 313(2) (written proposal, 30-day consultation period for council response) are mandatory and must be followed; (5) A directive issued ultra vires statutory powers or without compliance with mandatory procedural requirements is void ab initio and of no legal effect; (6) Where an administrative act is already invalid under the enabling statute, there is no necessity for a declaration of constitutional invalidity.