As stated by Superintendent Karyn Malthus, Auckland City District Commander:
Police accept a report by the Independent Police Conduct Authority (IPCA) in relation to an incident involving a self-harm attempt at the Auckland Custody Unit in 2017.
On the morning of December 24th 2017, Police arrested a man for trespass and he was taken to the Auckland Custodial Unit and placed in a cell.
Later that morning while the man was in his cell, he attempted to harm himself.
/NZ Police Public Release. View in full here.