Authorities
30 Consideration as to the admissibility of the statement of the second defendant against the first defendant (in joint or separate proceedings) should commence with the decision of the Full Bench in WorkCover Authority v Seccombe. In that case, Glynn J referred to the Full Bench certain questions relating to the form of caution to be used by an inspector when questioning persons as empowered under the Act and whether the form of caution used in that case resulted in the statement given being inadmissible in the proceedings.
31 The Full Bench determined that the form of caution given in that case was inadequate as a result of the failure to disclose that a person must not refuse or fail to answer a question "without reasonable excuse". The Full Bench also considered whether, if the statement was inadmissible against the individual defendant, it may be admissible against the corporate defendant. The Full Bench concluded (at 402-403):
It only remains to deal with Mr Wright's submission that should the statements be held inadmissible against the defendant (Mr Seccombe) as a natural person there was no basis to rule them inadmissible against the corporate defendant as the privilege against self-incrimination did not apply to corporations. All we need say about that submission is that if the statements be inadmissible in the proceedings for the reasons we have given, either as a matter of law or of discretion, then the statements are not in evidence. Whilst it is true that s.31M(2) says that the statements are not admissible in criminal proceedings against the person making them, the sub-section is concerned with protecting a natural person from self-incrimination by excluding a relevant statement from evidence but is not concerned with authorising the admission into evidence against another person, whether a natural person or a corporation, of the statement otherwise obtained contrary to its terms. Whether the statement should be admitted against the corporate defendant here is to be determined according to the ordinary rules of evidence, including s90 of the Evidence Act, and the nature of a corporation. As Stephen J. said in Smorgon v. Australia and New Zealand Banking Group Ltd. (1976) 134 CLR 475 at 481:
... A corporation cannot, of course, itself "give evidence". It may authorise an individual to depose to facts on its behalf and is obliged to do so in the course of litigation when required to make discovery of documents, answer interrogatories and the like. But it is not then itself giving evidence, the oath remains that of the individual, upon whom alone the sanctions which are designed to deter perjury may operate. The corporation may be bound by admissions contained in the evidence of such a duly authorised individual but the evidence will remain that of the individual witness.
Mason C.J. and Toohey J. in Environment Protection Authority v Caltex Refining Pty Ltd , as relied upon by Mr. Wright, referred to with approval the above comments by Stephen J in Smorgon v Australia and New Zealand Banking Group Ltd and, in holding that the privilege against self-incrimination was unavailable to a corporation, commented (at 504) that "... officers of the corporation are bound to testify against the corporation unless they are able to claim the privilege personally. Oral evidence given by an officer of a corporation is that of the witness, not that of the corporation" .
In the present case, in which the charges against both defendants were being heard jointly, the statements sought to be admitted constituted the evidence of Mr. Seccombe and, as such, remained the evidence of an individual witness and not that of the corporation by a person duly authorised to testify on its behalf. As Mr. Seccombe was properly able to claim the privilege against self-incrimination by not having the statements admitted into evidence, it must follow, in our view, that the statements could not otherwise be admitted as evidence against the corporate defendant. Apart from that, as we have held, it was properly open in her Honour's discretion to exclude the statements against both defendants as a matter of fairness pursuant to s90 of the Evidence Act.
32 The view of the Court in WorkCover Authority v Seccombe appears to have been that s31M does not, of itself, preclude the admission in proceedings against a corporation of a statement made by an individual even if the individual is able to claim privilege against self-incrimination. Rather, the Court held that the question of whether the statement should be admitted against the corporate defendant should be determined according to the ordinary rules of evidence, including s90 of the Evidence Act, and the nature of a corporation.
33 However, the Full Bench concluded that since the proceedings were being heard jointly, and Mr Seccombe was properly able to claim the privilege against self-incrimination and thereby prevent the statements being admitted into evidence, it must follow that the statements could not otherwise be admitted as evidence against the corporate defendant. It was observed by both parties that the Court in WorkCover Authority v Seccombe did not make clear why it should follow that because the statement was inadmissible against Mr Seccombe, it was also not able to be admitted against the corporate defendant. We should comment that to us the reason is plain from what the Full Bench said by reference to the observation by Mason CJ and Toohey J in Environment Protection Authority v Caltex, namely, that natural persons are bound to testify against the corporation "unless they are able to claim the privilege personally" because such a person's evidence "is that of the witness, not that of the corporation".
34 Nevertheless, and as earlier mentioned, the provisions of s31M have altered since the decision in WorkCover Authority v Seccombe. Section 31M(3) is a relevantly new provision and was reviewed in the only other decision which appears to have considered this section, that is, WorkCover Authority of New South Wales (Inspector MacKenzie) v Filrose Pty Ltd. In that case, Marks J considered the admissibility of records of interview with the general manager of the defendant company. The defendant objected to the admission of the records of interview on the ground that no warning was given to the effect that he was entitled to the protection of s31M. Proceedings were initially commenced against the managing director personally, but these were subsequently withdrawn. The proceedings before Marks J involved prosecutions against a single corporate defendant only.
35 Marks J considered the decision in WorkCover Authority v Seccombe and made a number of comments in relation to s31M. His Honour first observed that s31M(3) had been inserted into the Act following the decision in WorkCover Authority v Seccombe and continued (at 10 - 11):
At the time that the Full Bench in Seccombe considers s31M subsection (3) had not been enacted. However, it is arguable that subsection (3) does no more than reflect the common law position as laid down by the High Court of Australia in Environmental Protection Authority v Caltex Refining Co Pty Ltd (1993) 178 CLR 477. Certainly, the Full Bench was referred to this decision and cognisant of it.
36 In his Honour's view, the insertion of subsection (3) into s31M may have had little or no impact upon the relevant principles. We do not agree; it represents statutory intervention in a particular context which expressly precludes the rejection of evidence otherwise potentially inadmissible so as to avoid a claim of personal privilege in proceedings against a body corporate. The view stated by Mason CJ and Toohey J in Environment Protection Authority v Caltex must now be seen in that context in proceedings under the Occupational Health and Safety Act.
37 Further, his Honour commented that, according to the Full Bench in WorkCover Authority v Seccombe, s31M(2) protects the maker of a statement from self-incrimination but is not concerned with the admission of a statement into evidence against another person. The admissibility of the statement against a corporate defendant will be determined according to the ordinary rules of evidence. His Honour summarised the position of the Full Bench as follows (at 13 - 14):
As I read the decision of the Full Bench in Seccombe the critical portion for present purposes is that contained within the last paragraph on p369 which I have extracted above. This emphasises the fact that the trial judge was dealing with charges against both a corporate defendant and a natural person defendant which were being heard jointly. Presumably evidence in the one was to be evidence in the other. On this basis as the statements made by the director could not be admitted into evidence against him they could not otherwise be admitted as evidence against the corporate defendant because of the manner in which the evidentiary matrix had been established by the nature of the proceedings. In addition, of course, the Full Bench determined that it was within the discretion of the trial judge to exclude the statements made against both defendants pursuant to s90 of the Evidence Act . This could only have been because of the failure of the inspector to properly forewarn the person from whom the statement was taken about the proper effect of the relevant provisions of Div 4.
38 His Honour expressed the view that in a joint trial a statement will not be admissible against either defendant if the individual defendant can claim privilege against self-incrimination. This view appears to be based upon the presumption that "evidence in the one (matter) was to be evidence in the other (matter)." Since WorkCover Authority v Filrose involved the prosecution of one corporate defendant, his Honour concluded that nothing in the decision of the Full Bench in WorkCover Authority v Seccombe precluded the admission of the statement in that case.