The Waitangi Tribunal's water rights inquiry is due to consider the evidence delivered by the Crown and the Maori Council.
Last week's inquiry was launched after the Maori Council filed an urgent claim as a result of the Government's proposal to sell up to 49% of shares in four power enterprises.
The eight-day hearing into the matter ended on Friday, with closing arguments.
The Maori Council and the Crown are due to respond in writing to the final submissions this week.
The Waitangi Tribunal will consider the evidence, with the aim of issuing a memorandum of direction by the end of the month.
It is due to make a decision on whether Maori rights over water would be affected by the Government's share sale proposal.