(a) The fact that, in the silence of the valley through which Larne Avenue ran, no one had heard any excited barking from the doberman dog owned by the applicant and the deceased. It was highly unlikely, so the Crown suggested, that an unknown intruder would venture into premises where such a dog existed; and that, if he had, he would not be able to remain there long without the dog becoming excited.
(b) The point of entry into the premises was said to be the boys' bathroom window at the front of the house. Although the window bracket and its chain winder had been "jemmied" away from its base plate, there was no evidence, so the Crown contended, that the window had been penetrated by any person. Cobwebs running from the window sill down to bikes stored below remained unbroken, and the accumulation of dust along the sill of the window remained undisturbed, as did bars of soap which were lined up along that sill. Furthermore, the police crime scene examiner could find no disturbance of the film of dust on the vanity cabinet below the window or any impressions of shoe prints of persons who entered the house via the window. The scene within the house, so the police witnesses contended, was inconsistent with a "genuine interrupted burglary". This was because, so those witnesses said, drawers in two separate rooms (namely the master bedroom and the study) had been opened or removed and their contents dumped in piles on a bed or the floor. Yet none of the piles of contents had the appearance of being "sifted through" in either bedroom; and valuables such as cash and jewellery were simply left undisturbed. There was nothing, so said the police crime scene examiners, which suggested that anything had been taken away, and there was nothing left behind to identify an intruder who was foreign to the family. Searches for fingerprints and/or traces of biological material - other than those left by the deceased and the applicant and their children - proved fruitless. Although, in the family room, a CD player and a VHS video recorder and cassette tapes had been removed from their shelves and placed in a bag, that bag remained where it was.
(c) There was evidence of biological testing of certain items. One item was a sock worn by the applicant; and the other was the murder weapon which had been found beside the body of the deceased. Forensic evidence was that there was a stain on the front top of one of the applicant's socks. Although that stain did not ultimately test absolutely positive for blood, it nevertheless gave DNA results upon typing. The results indicated a mixture of biological material; the major contributor to that biological mixture being the deceased to a probability of 30 billion to one. The swabs taken from the murder weapon also disclosed a biological mixture, the major portion of which clearly was contributed by the deceased. There was evidence consistent with a minor contribution from the applicant but that, as the forensic scientist conceded, could have been due to the handling of the metal bar over a period of time in the days or weeks previously.
(d) "Cover up" by the applicant of his movements on 14 February
It was the Crown contention that the applicant had been astute to record his movements on the 14 February by collecting receipts from the various places where he had been. Those included receipts for payment of rates and telephone and water charges at the Tunstall Square shopping centre shortly after 9.30 a.m. on that day. The receipt from the post office for the payment of water and phone charges bears the time of 9.39 a.m. The next receipt is from Hardware House in Whitehorse Road, Nunawading, which bears the time of 10.10 a.m. Thereafter the next receipt is from the Nunawading Library which is across the road from Hardware House. That receipt bears the time of 12.26 p.m. and records a book, "The Technique of Glass Forming", taken from the library by the applicant. After 2 p.m. there was further documentary evidence of the applicant's presence at commercial outlets in Boronia, Bayswater and Ringwood.
(e) Senior Detective Moir from the Doncaster Police Station arrived at the applicant's premises shortly after 3.40 p.m. on 14 February 2000. She asked the applicant various questions about his movements on that day. The applicant, whom she said appeared genuinely upset, told her that he had left home at about 9.30 a.m., when his wife had already left to take the children to school. Amongst other things she asked: