Powers, J. agreed with Higgins and Isaacs, JJ[16].
19 The net result of the reasoning[17] in Berwin v Donohue was therefore that a consent for a prosecution was to be regarded as valid for the purposes of a section which contemplated that consent might be given in a particular case, and only arguably allowed consent to be given generally, if the prosecution fell within the terms of the consent, and that was so whether or not there were any other prosecutions capable of falling within the terms of the consent.
20 Since s.48(2) of the Occupational Health and Safety Act is a section which contemplates that authority may be given in a particular case, and which allows consent to be given generally, logic implies that the same reasoning is applicable. In each case it is simply a question of whether the prosecution answers to the description of a prosecution which has been authorised.
21 Consequently, I agree with the judge that the informant's authority to prosecute was an authority to prosecute in this particular case. Despite that it did not refer to the circumstances with which the proceeding was concerned, it described the prosecution in terms which were capable of accommodating the prosecution and the appellant did not show that the approval did not relate to the prosecution.
S.48(3) not redundant
22 The appellant submitted that the adoption of that view would render s.48(3) redundant. I do not think that is so. The fact that s.48(2) expressly provides for general authorities means that there may be authorities cast in general terms. In such cases s.48(3) is unlikely to apply. But it is distinctly possible that an authority might be drafted with precision, and s.48(3) appears designed to deal with the possibility of amendment in such a case. To take an example suggested by Mr Holdenson, it may be that an authority specifies precisely the paragraph of s.21(2) upon which reliance is placed, and after the evidence begins it is realised that the case is more accurately to be characterised as falling under another paragraph. The prosecutor could well be given leave to amend, but if it were not for s.48(3) it might be said that the charge as amended was not authorised.
Authority not unintelligible
23 In the course of reply the appellant's solicitor advanced a further argument, that the authority was in any event unintelligible. As I understood that contention, it was that because the authority refers to "these proceedings against A.B. OXFORD COLD STORAGE..." without defining "these proceedings", it is impossible to know what it means. But the answer is surely as Mr Holdenson submitted, that in context the expression "these proceedings" is to be read as "the following proceedings" and then in what follows the proceedings are defined in terms of proceedings for offences pursuant to section 47(1) of the Occupational Health and Safety Act in relation to the following sections:
Occupational Health and Safety Act 1985 (Vic)
Section 21(1) & (2)(a) & 47(1) - one charge
Section 21(1) & (2)(c) & 47(1) - one charge
Section 21(1) & (2)(d) & 47(1) - one charge
Section 21(1) & (2)(e) & 47(1) - one charge.
That is intelligible and in the absence of any suggestion that there may have been some other proceedings, it is sufficiently precise.
The admissibility of viva voce evidence
24 The appellant argued that the magistrate was wrong in law and that the judge below was in error in not determining that the authorisation was deficient on its face. The thrust of that contention was that the magistrate was wrong to act on the basis of oral testimony as to the administrative steps taken preceding the issue of the authority and to place reliance upon the presumption of regularity. The appellant submitted that: