What is tono tupapaku?

After the body of Tommy Murray was taken back to his home marae against his wife's wishes Mapuna takes a look at tono tupapaku. Retrieving a loved one back to their whanau at home to be buried. Earlier this month, Tommy Murray, died suddenly aged 54. His wife, Sara Murray, took him to their house in Naenae to lie before his cremation. His ashes were to be kept in Wellington. But then some of Tommy's whanau arrived at the Wellington home saying they came with aroha and manaaki to take him home back to Whangape to be buried. Sara said there was never a discussion about that and the whanau took her husband's body forcibly. What is the process of tono tupapaku? Rereata Makiha is a tohunga from Te Arawa and Ngapuhi.