The investigation for Moana has involved searches of Waitaki and Waimate waterways, with the assistance of the Police National Dive Squad.
The Waitaki search area was close to where a silver Subaru was found burnt-out two days after Anaru’s disappearance in December last year.
Police earlier confirmed this was a vehicle of interest and have been tracing the movements of those linked to the vehicle between the time Anaru went missing and when the vehicle was disposed of.
Detective Senior Sergeant Nik Leigh said, “While Police have not yet located Mr Moana, it is pleasing to have put people before the courts in relation to his death.