She had once seen Curtis perform wrestling moves on her daughters, but loved him and trusted him to take care of her, Kuka said.
During the weekend when Nia sustained her fatal injuries, Kuka had splashed cold water on her child's face but did not get a response.
Kuka put Nia back to bed and the next morning was told by Curtis that Nia had woken up and had breakfast but was tired and went back to sleep.
If she had known anything untoward had been happening to Nia, she would not have let things get to the point where Nia had to die, Kuka said.
Mr Bain told the inquiry its purpose was to answer address four issues, among others:
* What were the household circumstances and how were they created in which Nia faced violence at the hands of close family caregivers?
* What steps could have been taken to keep Nia safe in the neighbouring community and whanau?
* What monitoring or oversight existed in whanau or state agencies to keep Nia safe? If they did exist, why did they fail?
* What cultural or socio-economic factors contributed to Nia's death?