In an attempt to show that if the Court misconstrued s. 137, the order dependent upon that error was made in excess of jurisdiction, great reliance was placed upon the decision of this Court in R. v. Connell; Ex parte The Hetton Bellbird Collieries Ltd. [1] where it was decided that an order made by an Industrial Authority altering rates of remuneration was made without jurisdiction because it was only by misconstruing the word "anomalous" that the Authority became satisfied that the existing rates of pay were anomalous. Latham C.J. said: "There is power to deal with this subject matter in respect of rates of remuneration which existed on the specified date only if the authority is satisfied that the rates in question are anomalous. Unless this condition is fulfilled, the authority cannot act - it is a condition of jurisdiction" [2] . After referring to a number of authorities, including Estate and Trust Agencies (1927) Ltd. v. Singapore Improvement Trust [3] , the Chief Justice said: "It is therefore well settled that if a statute provides that a power may be exercised if a person is of a particular opinion, such a provision does not mean that the person may act upon such an opinion if it is shown that he has misunderstood the nature of the opinion which he is to form" [4] . Speaking of the task of the Court dealing with a challenge to jurisdiction, the Chief Justice said: "It should be emphasized that the application of the principle now under discussion does not mean that the court substitutes its opinion for the opinion of the person or authority in question. What the court does do is to inquire whether the opinion required by the relevant legislative provision has really been formed. If the opinion which was in fact formed was reached by taking into account irrelevant considerations or by otherwise misconstruing the terms of the relevant legislation, then it must be held that the opinion required has not been formed" [4] . Starke J. said: "The Industrial Authority must be satisfied that the rates of remuneration are anomalous. But he must be so satisfied upon a proper construction of that regulation and not upon his own arbitrary, capricious and mistaken opinion of its meaning" [1] . Williams J., with whom Rich J. agreed, said: "It appears to me that Connell, whose good faith is not challenged, adopted a wrong view of the meaning of anomaly in reg. 17 (1) (b), and that, if he had adopted its true meaning, there was no evidence on which he could have been satisfied that an anomaly existed. He therefore adopted a wrong and inadmissible test and acted beyond his powers, so that clauses 1 and 2 of the award are void and unenforceable [2] . The distinction that I draw between that case and this is that there the grant of power was construed as not extending to the formation of an unchallengeable opinion unless and until a correct interpretation had been put upon the word "anomalous," whereas here, as I construe s. 137, the matter upon which the Court must itself form an opinion includes the meaning of the word "lock-out." " In like fashion, it seems to me that the decision of the Privy Council in Estate and Trust Agencies (1927) Ltd. v. Singapore Improvement Trust [3] is to be distinguished. In this case it cannot be said that the Court of Arbitration did not form an opinion upon the matters, including the possibility of a lock-out, which had to appear to it to be "reasonably likely"; the most that can be said is that it formed a wrong opinion. Here, as in cases such as Reg. v. Commonwealth Court of Conciliation and Arbitration; Ex parte Amalgamated Engineering Union, Australian Section [4] and R. v. Taylor; Ex parte Professional Officers' Association - Commonwealth Public Service [5] , the construction of the provision in question is a matter within the jurisdiction of the tribunal to which power is committed. In the former case, the joint judgment contains this passage [6] : "The proceeding before us is not an appeal, and no appeal lies to this Court in respect of the order made by the Arbitration Court. The proceeding is an application for a writ of prohibition, and "the law is well settled that superior Courts will not interfere by way of prohibition with the decisions of inferior Courts of limited jurisdiction unless want of jurisdiction is clearly established" - per O'Connor J. in Amalgamated Society of Carpenters and Joiners v. Haberfield Pty. Ltd. [7] There was a proceeding regularly before it (the Arbitration Court), an application for relief which it was authorized by the Act to entertain. In the course of entertaining that application, it had of necessity to consider the question of the construction and effect of s. 96M (6). The determination of that question was a matter within its jurisdiction, and, where the remedy sought is prohibition, it is not to the point to say that it determined that question wrongly. There may or may not have been "miscarriage in the course of the inquiry." There was "jurisdiction to enter upon the inquiry." Cf. generally Parisienne Basket Shoes Pty. Ltd. v. Whyte [1] ".