In his oral evidence, Senior Constable Bieder made it clear that by the last 12 months, he meant the 12 months prior to the deceased's first suicide attempt, putting back his recollection of the personality change to which he referred to early 2003. He amplified the evidence in his statement in this fashion in his evidence in chief:
"Q. Just finally, reference is made in paragraph 34, you say Dave was not being himself for the last 12 months. As best you can recall in any conversations if you need to, how do you arrive at that conclusion?
A. Just the fact that when you spoke to him, or you were having a conversation with him, he would say something and basically you'd respond and he'd start talking again as if you hadn't said a word. At that time we were both working on a project together which was something for - federally, for a bomb technician's Australia-wide in relation to producing a training course in relation to mobile phone bombs. Dave and I are the only two electricians who were in the bomb disposal unit who had the knowledge to be able to bring other bomb technicians in Australia up to that level. As a result of what we did then we now run, or I now run a course through TAFE, rather covertly, for bomb technicians in relation to that technology, and he worked a lot with me on that. And trying to put a course together like that together with him during that time was extremely difficult because we were both - he was very good with electronics, and better knowledge of electronics than I did, yet I had to run the course because Dave wasn't a fully qualified bomb technician, he was only a bomb appraisal technician, which is a step down. And trying to sort of put this knowledge on paper and put a course together with him when he was in that frame of mind was very difficult because he wasn't listening to what I was saying and when you're having a conversation with him. And, I mean I didn't really realise what was going on at the time, I just knew that he was becoming harder and harder to work with in that sense.
HIS HONOUR: Q. He was preoccupied was he?
A. It was like, yeah, he was - I mean I'm not a psychologist or anything to be able to put - to knowing what it is, but it was almost like he had like ADD or something where you would have a conversation with him and it was just him. It was almost like it was just him and you weren't there. Although he'd respond to you, he wasn't listening to what you were saying and he wasn't taking it in, and that was extremely odd for him because he was - he just wasn't like that."