A court has heard Phillip Polkinghorne's police interview on day eight of his trial.

The Auckland eye doctor is accused of murdering his wife, Pauline Hanna, in 2021.

He maintains she killed herself.

Polkinghorne's dealings with other woman have been detailed today, both at a North Shore apartment in 2019, and a Mount Cook retreat in the weeks after Hanna's death.

NewstalkZB's Chelsea Daniels says Polkinghorne jumped from topic to topic in the police interview.

"Detailing things like the couple's beach house, an argument they'd had about staining, an episode of New Amsterdam they'd watched the night before."

LISTEN ABOVE