A fifth person has been arrested in connection with the discovery of a body near the Desert Road.
Police investigating the murder of Bao Chang Wang, known as Ricky Wang, have charged a fifth person.
A 23-year-old man has been charged with accessory after the fact to murder and is due to appear in Waitakere District Court this afternoon.
A tip-off in March led police to a grisly discovery of human remains buried on the side of Rangipo Intake Rd, which is off the Desert Rd near Tongariro.
The body, which police say "had been in place for a period of time", was exhumed and an autopsy confirmed the case was officially a homicide inquiry.
Wang's family believed he had travelled overseas in 2017 and he was not reported as missing in New Zealand.
Police had been in contact with his family in New Zealand and in China to make sure he did not leave the country under a different identity.
An examination of an Auckland apartment was also conducted over a two-week period in late April as part of the probe. It was the second Auckland property to be searched as part of the investigation.
in April, the Herald revealed police and ESR scientists were combing a property in Massey, West Auckland, looking for evidence about the death.
Motorists are advised to follow diversions and expect delays.