Philip Polkinghorne arrives at the Auckland High Court for the first day of his trial for the murder of his wife Pauline Hanna New Zealand Herald photograph by Michael Craig 29 July 2024 Photo: NZME/Michael Craig
Warning: The contents of this story discuss suicide and assault.
A forensic pathologist called by the defence in the murder trial of an Auckland eye surgeon, said he would have concluded Pauline Hanna's death was a suicide if he was responsible for the case.
Polkinghorne is on trial at the High Court in Auckland for the murder of his wife, Hanna.
The defence's case rests on Hanna having ended her own life, while the Crown argues the scene was staged after a violent strangulation.
Dr Stephen Cordner, an Australian forensic pathologist, was called by the defence to give evidence in the trial earlier this week and his evidence continued on Friday.
Cordner said there was "no evidence" to support Hanna's death had been a homicide or due to manual strangulation.
If someone had been strangled by another person, Cordner said more often than not, there would be additional injuries to the body which indicated an assault.
"That doesn't seem to be the case here," Cordner said.
During cross-examination by Crown Solicitor Alysha McClintock, there was a focus on the injuries Hanna was found with.
One of the injuries was a bruise to the skull which earlier in the trial Crown pathologist Dr Kilak Kesha, said was caused either by something hitting her head or her head hitting something.
Corner agreed with this but said the bruise didn't confirm whether there had been an assault or if there was some other cause.
There was also an injury on Hanna's nose, which McClintock questioned Cordner on.
Cordner said this injury could have been caused after death, along with bruises found on Hanna's right arm.
Crown suggests blood may have been cleaned at the scene
Blood was found between Hanna's fingers, McClintock said, but not on the rest of her hand.
The only other place blood was present was in Hanna's ear.
McClintock suggested this could be due to Polkinghorne cleaning the blood of his wife's hands after her death.
"As a pathologist you can't discount the blood has been cleaned," McClintock asked Cordner.
He said it "couldn't be ruled out" as a possibility.
"I really think that's a long bow you're drawing," Cordner said to McClintock.
Impact of sedation questioned by Crown
McClintock noted she was not trying to suggest Hanna had been drugged by another person, but did want to touch on Hanna having twice the recommended level of the sedative sleeping pill, Zopiclone, in her systyem.
"The question is, what impact did that have?"
She asked Cordner if he knew if Hanna had been asleep at the time of her death.
Cordner said no, but noted if someone was asleep, the expectation would be they would wake up rapidly, instantly, and do everything in their power to escape the position they were in.
Clarifying the Crown's position, McClintock said she was not suggesting Hanna was sedated to the point of being unconscious.
Cordner told the court an injury he understands was a "small scratch or scrape" on Pokinghorne's forehead was caused by hitting the stairs while moving Hanna's body to the floor.
McClintock queried Cordner on where he had got this information from, but he said he thought it may have been a solicitor from early on in the case.
"It could be a nail mark?" McClintock asked.
Cordner said he "couldn't rule it out".
The trial continues.
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