3. In this Act, unless the contrary intention appears—“administrative unit” means an administrative unit into which the Public Service is divided pursuant to paragraph 54 (2) (a) of the Australian Capital Territory (Self-Government) Act 1988 of the Commonwealth; “Assembly” means the Legislative Assembly; “office-holder” means—
(a) a Minister;
(b) the Speaker of the Assembly; or
(c) a person in respect of whom a determination by the Chief Minister under section 4 is in force;
(a) a person to whom an invalidity pension within the meaning of the Superannuation Act is payable or would, but for the pension having been suspended, be payable; or
(b) a person to whom a pension under the Superannuation Act 1922 of the Commonwealth is payable or would, but for the pension having been suspended, be payable, being a person who was retired on the ground of invalidity or of physical or mental incapacity to perform the person's duties;