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David Bain - Source: ONE News -
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The jury in the Bain murder retrial has heard that scientific tests show it is possible Robin Bain could have made the bloodied footprints found in the Bain house.
The evidence follows a series of scientific tests.
Luminol testing found five prints coming out of Stephen Bain's room into the hall and going towards Laniet's room.
Kevan Walsh told the court the ESR did a series of tests using a foot the same size as David's.
"A walking person with a 300mm foot, making sockprints with the sock completely bloodied, would be expected to make a print greater than 280mm," Walsh said.
The size is crucial because 280mm is the size of the prints found in the house. And even though most of the prints made in the tests were bigger than those found at Every Street, the Crown witness said it was still possible David made them.
The footprints are crucial to the defence case which says the prints are a perfect fit for the father who they have always maintained was the killer.
But Walsh told the court measuring luminol prints isn't easy.
"It's very dark and it's a very low glow...so its very difficult to locate the extremities of a pattern," he said.
And exactly how accurate all the measurements are will come under close scrutiny as the trial continues.
