A coroner has confirmed a 33-year-old Auckland man's date of death, seven years after his body was found.
Damien Loder Allen had been drinking heavily and taking drugs with his flatmates at their Hillsborough home on the night of 23 September 2009 and was found dead on his bed the following night.
Coroner Gordon Matenga told the inquest he was satisfied the police had left no stone unturned.
He said Mr Allen died from blunt force trauma but any further details, and the post mortem itself, should remain unpublished.
Mr Matenga then ruled that given Mr Allen was last seen wandering drunk downstairs to his room on the 23 September, his death certificate should say the 24 September, as it was when he was found.
Police have never been able to establish Mr Allen's exact movements in the hours before he was killed.
Damien Allen's father, Mark, has expressed his frustration at justice not being done for his son, describing the police investigation as a farce.
The investigation is ongoing.