29 Assuming for present purposes that the use of the listening device was in contravention of s 5, further errors in the construction of s 13 are apparent from the magistrate's reasons. The magistrate appears to have accepted that evidence of the conversation was not sought to be given and that the only relevant basis for excluding the video-tape images lay in characterising those images as evidence obtained within the meaning of s 13(1)(b). Ultimately, his Honour held that the video images was evidence obtained as a consequence of the use of the listening device :-
Mr H set up his video camera and filmed audio and visual, the changeover and it involved conversations. That was the intention because of his concerns about himself and I have no criticism about that. But at the end of the day what came out of it subsequently, according to Mr H's observations of it, which is made clear in 6, 7 and 8, is that he noticed that his car has been scratched. ……. It seems to me that subsection b of s 13(1) which simply starts with evidence obtained, cannot mean more or less than what it says and what actually happened here, what was being filmed visually and orally was the changeover, what happened was evidence was obtained as a consequence.
30 However, s 13(1)(b) is directed to evidence obtained as a direct consequence of the conversation coming to the knowledge of the complainant, not as a direct consequence of the use of the listening device. The distinction may appear subtle but it is a meaningful one. Section 13(1) is intended to capture (a) evidence of the words spoken in the course of the conversation, that is, the content of the conversation itself, and (b) any evidence derived or gleaned from the content of the conversation. Had the complainant's wife said to her son "You must tell me if your father leaves you alone in the house, like he did last time", evidence of that conversation and evidence that the defendant had left his son alone in the house is prima facie inadmissible under s 13(1).
31 If the magistrate's approach to s 13(1) were correct, (b) has very little work to do. Evidence obtained as a direct consequence of the use of the listening device includes evidence of the conversation, thereby rendering s 13(1)(b) redundant. The video images were not a consequence of the conversation coming to the knowledge of the complainant ; they were captured simultaneously with the recording of the conversation by the same device.
32 I am not aware of any authority, binding on this Court or otherwise, which has applied s 13 of the Act to visual images independently of evidence of, or arising directly from, conversations. The whole Act is directed to the protection of the privacy of the individual's oral communications with others. Eade is of no assistance to the defendant, in fact, it is against him. Kirby J' set out this portion of the Second Reading speech
Clause 13 will render evidence inadmissible in civil or criminal proceedings if it was obtained by the unlawful use of a listening device, whether directly or indirectly. The clause, however, will enable any such evidence to be admissible if, among other things, the parties consent or, in the case of certain serious offences, the court in special circumstances so determines.
33 Kirby J's reference to the Second Reading speech was followed by this qualification: