ONE of the dozens of stab wounds that Mackay woman Shandee Blackburn received was delivered with such ferocity that it cut out a small piece of her skull.
Forensic pathologist Professor David Williams told the Supreme Court trial of John Peros that such an injury would take "severe force".
Peros has pleaded not guilty to murdering Ms Blackburn on February 9, 2013.
Prof Williams told the court the stab wound, to the right side of her forehead, was one of three main wounds that contributed to Ms Blackburn's death.
He said there was also a significant stab wound on her right chest and on the right side of her neck.
"(The right chest wound) is a complicated wound. It seemed to be two stab wounds in the one area that appeared to go into the right lung, causing bleeding into the lung," Prof Williams said.
The wound on the neck went through to Ms Blackburn's voice box.
"It affects the ability to breathe, in that bleeding occurs and it can allow blood to drain into the airways and add to the blood already there in the lungs from the stabbing of the right lung," Prof Williams said.
There also were several stab wounds to Ms Blackburn's arms and hands.
Defence barrister Craig Eberhardt asked about some of the wounds on the victim's arms and hands during cross examination.
Prof Williams agreed with Mr Eberhardt that there were a number of defensive injuries, including injuries that could have been caused by her grabbing a blade.
He also agreed that there were a number of injuries on her wrist that could have been caused by someone restraining her.
The pathologist said the stab wounds could be consistent with the attacker using their right hand.
The jury was shown photos that illustrated the extent of the wounds.
The jury also heard from taxi driver Jaspreet Pandher who gave evidence Thursday and Friday as a witness to the incident.
Jaspreet Pandher was working in a maxi taxi on February 9 and was turning onto Juliet St from Boddington St when his headlights caught two people struggling with each other on the side of the road.
It was for a split second.
He appeared in court as a prosecution witness Friday.
He didn't get far along Juliet St before a job came through and he made a U-turn to pick up the fare.
As Mr Pandher was travelling south he noticed a man running across a park towards Juliet St, and when he turned right into Boddington St he saw a woman lying on the ground.
Mr Pandher is the only witness called by the prosecution who saw two people struggling on the street on that date.
He was cross examined by defence barrister Craig Eberhardt Friday, after giving evidence Thursday.
"I saw someone running and when I turned on to Boddington St I saw the woman lying there," Mr Pandhar said, in answer to Mr Eberhardt's questioning.
He couldn't make out many details of the man running, or where he was running to. "It was pretty dark at the time," he said.
Mr Eberhardt read out most of Mr Pandher's initial statement to police, saying the witness had given a different account of the events of February 9, 2013 while being questioned by Crown prosecutor Joshua Phillips the day before.
On Thursday Mr Pandher had told the court he had noticed the struggle as he was turning left onto Boddington St from Juliet St after coming from Shakespeare St.
Mr Eberhardt asked the taxi driver if he had refreshed his memory about the police statements before appearing at the trial Thursday.
Mr Pandher said he had not revisited any of his earlier statements to police.
He agreed with the defence that there was a discrepancy between his police statement and his testimony, and said it was because of the length of time that had passed since the incident.
Mr Pandher agreed when Mr Eberhardt asked if he would have stopped if he had known how serious the incident was.
The trial continues.
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