Human remains were dug up in Hamilton in June when the owners of a Hillcrest property excavated for a pool.
The remains were identified as pre-European and identification was handed over to iwi.
Taupō area investigations manager Detective Senior Sergeant Ryan Yardley said specialist resources, including search teams, were assisting to ensure a thorough examination of the Tokoroa remains.
“Formal identification will take some time and until this process has been completed police will be unable to provide further comment or information on the possible identity of the remains.”
Anyone with information can contact police online, or by calling 105 or anonymously via Crimestoppers on 0800 555 111.