Day three of Phillip Polkinghorne's murder trial has featured testimony around an orange rope and investigations after the death.

Polkinghorne is accused of killing his wife, Pauline Hanna, in 2021 with debate in court today about a rope found on scene.

The Crown claims the rope hadn't enough tension for Hanna to use it take her life,  but the defence says Polkinghorne loosened it when he found her.

ZB reporter Chelsea Daniels says the jury also heard about the intensive search of the Remuera home.

"Police scoured every one of the 370 square meters of that Upland Road home. Four bedrooms, four bathrooms, the library, the kitchen, the study, the laundry - everything."

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