It is true that Deputy President MacBean's reasons for decision on the application pursuant to s 111(1)(g) of the Act contain some strongly worded conclusions in relation to some issues of fact which may be involved in the s 115 proceedings. Those conclusions were reached by him after a hearing extending over some 45 days of the Commission's time. If what was involved were two sets of proceedings between different interests about unrelated matters, Deputy President MacBean may well have been disqualified from participating in the s 115 proceedings by reason of an impermissible appearance of bias and prejudgment. The s 111(1)(g) and the s 115 proceedings are, however, related proceedings between the same interests. Indeed, both sets of proceedings must be seen as steps in one overall contest between the same group of interests and arising out of a common set of facts. In that context, it appears to us to be unreasonable and impractical to think that the determination of factual issues at one point in the resolution of the overall contest could or should preclude involvement in other steps, the outcome of which may depend on the same facts or some aspect of them. Should the applicants' submissions be accepted, it would be necessary for the Commission, which is not a court, to be re-constituted in a way which would exclude Deputy President MacBean from participating in the s 115 proceedings and, to the extent that the same factual issues were involved, to determine them ab initio, notwithstanding that they have already been determined by Deputy President MacBean after a 45 day hearing. That would be impractical and, moreover, would permit of inconsistent findings of facts in what is, in essence, one overall contest. Furthermore, to the extent that the respondent, Finance Sector Union of Australia, argues in the s 115 proceedings that the terms of the agreements "are not in settlement of an industrial dispute" (see s 115(9)(a) of the Act), the facts relied upon by this respondent come largely from the mouth of Mr Swartz, the President of the Metway Group Industrial Organisation of Employees, who is a prosecutor in one of the applications. In those circumstances, we are firmly of the view that the principle to which we have referred does not preclude Deputy President MacBean from participating in the s 115 proceedings.