Ngapuhi runanga leader Sonny Tau says a proposed strategy and pathway to Treaty settlement by the Crown will set the iwi back 100 years.
The Government appointed Tukoroirangi Morgan from Tainui in Waikato to find a way forward, after it rejected the tribe's treaty settlement committee, Te Ropu o Tuhoronuku, from having direct negotiations with the Crown despite 76% support from iwi members.
The Crown believes a 24% vote against granting a mandate to the committee is too high for it to proceed with a Treaty settlement given the inevitability of court challenges.
A report by Mr Morgan suggests starting the process again with the establishment of a new, independent, mandated authority.
But Mr Tau says Tuhoronuku has held 60 hui over the past four years and spent $3 million.
He says Mr Morgan's proposal is an insult to the mana of Ngapuhi and he's demanding direct talks with the Minister for Treaty of Waitangi Negotiations, Christopher Finlayson.