Apparently the Western Australian Police are famous for their failure to disclose evidence that could contradict, or put doubt on their version of events.
Leading up to, and including Gary's trial itself, many items were withheld by Police from scrutiny by Gary's defense, including his own personal log books (which apparently were misplaced) and could have shed some light on the sequence of events, and operation Zircon surveillance tapes of Sidney Reid's house.
Gary's legal team are now sifting through the 40+ surveillance tapes for information that could have assisted in his defense. Already uncovered is an argument between Sid Reid and his girlfriend Natasha where she is heard to say "Sid you tell lie, upon lie, upon lie, upon lie. It has got to the point where I do not believe a word you say." This could have been used in court as it directly relates to the credibility of Sid Reid's testimony. A full transcript is being prepared but will take time due to the quality of the audio tapes.