A. granting registration to the condition that the amendment conforms
with the Act according to the construction of its provisions which the courts of law will hold to be correct. Indeed, a strong indication to the contrary is to be found in the provision as to the duty of the registrar in cases where that officer is to act without reference to the president. There, a condition is expressed, but it is only that the registrar is satisfied, and not that it is the correct conclusion of law,
GOVERNMENT that the addition, amendment or rescission is not in conflict with the
Act. In the face of such a provision it is obvious that prohibition could not lie to prevent the registrar, on the ground of a conflict between the amendment and the Act, from performing the duty of deciding for himself whether the conflict exists and of acting upon the opinion which he forms. In considering the question he is, as was said in reference to a somewhat similar situation under the Common- wealth legislation, " engaged upon the very function assigned to him, and none the less SO because he may arrive at an erroneous conclusion: R. v. Taylor; Ex parte Professional Officers' Associa- tionCommonwealth Public Service 1. Without clear words it is not to be supposed that the power of the president is intended to be more narrowly confined than the registrar's. It seems right to hold, on the section as a whole, that the president, no less than the registrar, "may decide a matter before him wrongly without exceeding his power" ibid. Accordingly it is no ground of prohibition, even if it be true, that an amendment which the president is considering under S. 23 would make the union's rules conflict with the Act. If it would, the amendment itself may be void notwithstanding registration; but it does not follow that the president, if he directs that the amendment be registered, is doing something which is void for excess of power.
Reference was made in the course of the argument to S. 108. As amended by the Act No. 5 of 1952, that section provides that no award, order or proceeding of the court or before the president shall be liable to be challenged, appealed against, reviewed, quashed or called in question by any court of judicature on any account whatever. But there is no need to go to that section, either to find a validation of an excess of the power conferred by S. 23 on the principle referred to in R. v. Hickman Ex parte Fox and Clin- ton 2 R. v. Murray; Ex parte Proctor 3 and R. v. Metal Trades Employers' Association Ex parte Amalgamated Engineering Union, Australian Section 4, or to find a still more direct obstacle to the
1(1951) 82 C.L.R., at p. 186.
2(1945) 70 C.L.R., at p. 615.
3(1949) 77 C.L.R., at p. 398.
4(1951) 82 C.L.R. 208, at p. 249.