Two witnesses claim to have seen Corryn Rayney and her car in Victoria Park on the night she was killed, with her husband's wilful murder trial yesterday inspecting the location of the reported sightings as part of a court tour.
The claims were revealed in the Supreme Court on Tuesday at the end of prosecutor John Agius' two-day opening address.
Lloyd Rayney is fighting an allegation he killed his estranged 44-year-old wife on the evening of August 7, 2007.
Mr Agius said the first of the witnesses was an on-duty police officer who claimed to have seen a woman he later believed was Mrs Rayney coming out of a cafe on Albany Highway and smiling with two others.
The witness described the woman as short, of Indian or Pakistani appearance, aged 30 to 35, and wearing jeans tucked into knee-high boots, and a tasselled cowboy-style shirt. He said he noticed the woman because of her unusual appearance.
However, he was unsure of the time, estimating it to be about 9.25pm or between 10.40pm and 11.30pm.
Mr Agius asked Justice Brian Martin not to accept the evidence as correct.
He suggested it clashed with the prosecution's timeline of events, did not properly match Mrs Rayney's description, and may have been tainted by media reporting at the time. The account from the second witness - which Mr Agius also suggested the judge should discount - involved a silver Ford Fairmont, which was the same model and colour as Mrs Rayney's car, driving along the highway with people moving about inside.
Both reports came weeks after she died.
Defence lawyer David Edwardson had asked for the locations to be included in yesterday's court tour of sites relevant to the case.