A FORENSIC foot expert could not eliminate the man accused of killing the Singh siblings as the person who left a footprint at the murder scene, a court heard.
Podiatrist Dr Sara Jones, however, told the Supreme Court in Brisbane it was not positive Mr Sica had left the foot impression because the measurements taken could be consistent with a lot of other people.
Courier Mail reported Dr Jones as explaining the tests were not made to identify who left a foot impression but rather to eliminate a suspect like Mr Sica.
Mr Sica has pleaded not guilty to the deaths of Neelma Singh and her siblings Kunal and Sidhi.
The court saw a comparison chart between a left foot impression and Mr Sica's left foot, which was the measurement range of the imprint on seven variants.
A partial impression taken of a right foot at the scene was consistent with Sica's right foot on two variants.
She said again Mr Sica could not be excluded as the person who made the foot impression. Dr Jones said she was involved in more than 50 cases.
She said the first impression at the base of the steps was sufficient to get measurements of length and width.
The other four impressions were only partial of the toe and ball of the foot, because it was taken from someone walking up the stairs.
She said three other impressions were so faint, it was not possible to get any measurements.
For initial comparisons, Dr Jones was sent photographs of the impressions with two pairs of shoes and in-soles.
She said the indications were foot shape and size was consistent with the photograph.
Dr Jones said in April 2004 she travelled to Brisbane and examined Mr Sica's feet and supervised some tests on him.
She was shown a photograph of Mr Sica's right foot sole and pointed out his second toe was longer than his big toe, his little toe tucked in under the fourth toe, which was also underlapping.