Prime Minister John Key is again at loggerheads with Tuhoe, over whether the return of the Urewera National Park would have set a precedent for other Treaty deals.
Mr Key last week said it would have set a precedent which at least three other iwi would have tried to use.
He says Tuwharetoa, Taranaki and Whanganui iwi negotiations could have been affected, and arguably Ngai Tahu - although the Government believes its settlement is full and final.
However, Tuhoe says it worked through all the legal issues with the Crown Law Office, the Department of Conservation and Treasury.
Chief negotiator Tamati Kruger says all other national parks are surrounded by iwi which have reached full and final Treaty settlements with the Crown.