Lanyue Xiao and her husband Kaixiao Liu in court.

Details of how a defendant was coaching others to explain the death of Chinese woman Shulai Wang have been heard in recordings made at the house at the centre of the police investigation.

Wang's body was found wrapped in rubbish bags in Auckland's Gulf Harbour in March 2024, and four family members - Kaixiao Liu, his wife Lanyue Xiao and parents Xiuyun Li and Jingui Liu - are on trial for the manslaughter and kidnapping of Wang.

The Crown's case is that Wang came to New Zealand to receive religious instructions from Liu and later died after an unsuccessful escape.

Crown prosecutor Henry Steele said about 4500 audio recordings were obtained through police surveillance devices placed at the defendants' house in Ōrewa in North Auckland.