The passage[17] relied on for the respondent is really the obverse of the passage quoted at length. In my opinion, the appellant fails to bring himself within the passage relied on. The County Court judge was, I consider, acting within jurisdiction when on the hearing of the charge against the appellant for an offence under sub-s.(1) of s.31 of the Sentencing Act he, pursuant to sub-s.(5) of that section, erroneously, as I would hold, found the appellant guilty of the offence and proceeded in substance to restore the suspended sentence and order the appellant to serve it. It was not an essential condition of the existence of the jurisdiction which his Honour was professing to exercise that a certain event, being the commission by the appellant of another offence punishable by imprisonment, had in fact occurred. That might have been so - I express no opinion - if the first sub-section of s.31 had provided that the following sub-sections in it applied if, but only if, during the operational period of a suspended sentence of imprisonment the offender committed another offence punishable by imprisonment, and if the remainder of the present sub-s.(1) had been the first of the other sub-sections. But the present sub-s.(1) is similar to many sections which provide that if a person does something he or she is guilty of an offence and may be proceeded against in a manner specified. Section 31(1) makes the offender who commits another offence punishable by imprisonment guilty of an offence and liable to prosecution. Sub-section (2) authorises a proceeding against a person "for", i.e., alleging, such an offence, which must necessarily be authorised whether or not the offence has actually been committed. Proof that the proscribed conduct did not occur or failure to be satisfied beyond reasonable doubt that it did occur, each of which happens daily in our courts, does not mean that the court purporting to hear and determine such a charge has acted without jurisdiction and committed a jurisdictional error. The question of the guilt or innocence of the appellant of the offence under s.31(1) alleged against him, together with, if he was guilty, what consequential orders, if any, should be made by way of restoration of the suspended sentence and the like, was clearly committed to his Honour by sub-s.(5) in particular, taken with sub-ss.(3)(b)(ii) and (4). His Honour had jurisdiction to find, whether correctly or incorrectly, that the appellant was guilty of the offence under sub-s.(1). If the judge did not have jurisdiction to decide (subject only to any appeal) whether the further offence was committed or not, his decision would always be contingent or defeasible. That his Honour was acting within jurisdiction may be demonstrated by assuming a case where the judge was not satisfied that the offender had committed a subsequent offence punishable by imprisonment either because he, correctly, was not satisfied that the offender had committed the elements of the offence alleged or because he concluded, correctly, that the offence committed was not in truth punishable by imprisonment. It could not be suggested that an order dismissing the charge in either of those cases was made without jurisdiction. If due allowance is made for the fact that it was prohibition and not certiorari that was sought in Parisienne Basket Shoes Pty. Ltd. v. Whyte[18], the judgment of Dixon, J. in particular in that case is applicable here and his Honour's reasoning shows why all the more so here there was no jurisdictional error on the part of the County Court judge. The three factors of the gravity of the error, the liberty of the subject and the absence of an avenue of appeal relied on for saying that it was a matter of jurisdiction cannot overcome the clear statutory language and the reasoning of Dixon, J. Director of Public Prosecutions v. Judge Fricke[19] supports the view that the judge here was acting within jurisdiction. Finally, it may be that the fact that s.31 is a general provision applying to the Supreme Court as well as to other courts is a factor independently making it unlikely that sub-s.(1) goes to jurisdiction: compare Roos v. Director of Public Prosecutions[20], though the dissent of Sheller, J.A.[21] there is to be noted.