In August 1986 Henare Rakiihia Tau, on behalf of the Ngāi Tahu Māori Trust Board (NTMTB), submitted a claim to the Waitangi Tribunal about the government’s announcement that it would transfer Crown land interests to State-Owned Enterprises. Ngāi Tahu and Māori across the country were worried that after the government privatised land and assets they would become unavailable for transfer in future Treaty settlements. Over the following year-and-a-half, seven further amendments to their statement of claim were made that set out the grievances arising from land purchases and the lack of reserves provided by the Crown, and the loss of access to food-gathering areas (mahinga kai), including both sea and inland fisheries. Tau was the Deputy Chairman of the Trust Board, and the Upoko of Ngāi Tūāhuriri. Tā Tipene was the Chairman of the NTMTB, and he and Tau formed an effective partnership in leading the Ngāi Tahu claim in the 1980s.