She was found dead at her Remuera home last April. On Tuesday morning, police said a 69-year-old man was arrested and charged with murder.
He will appear in Auckland District Court later today.
Hanna, who was 63 at the time of her death, was the senior health director at the Manukau County Health Department and was involved in the DHB’s Covid-19 work.
Hannah adores Polkinghorn’s sons John, Ben and Tyne and considers them “her children,” Polkinghorn said.
In a Facebook post shortly after Ben Polkinghorne’s death, Hannah was “extremely stressed” at work, which was taking a toll on her mental health.
In October, it was revealed that Polkinghorne was close to senior Australian escort Christine McQueen, aka Madison Ashton.
Polkinghorne did not comment when asked about the alleged relationship, but told the Herald days after his wife’s death that his relationship was “perfect”.
“We had a bad relationship, not at all, it was perfect,” Polkinghorn said.