The Green Party says it plans to change the Public Works Act to ensure that no more Maori land can be taken by the Government.
The idea was prompted by author Patricia Grace who successfully took a case to court against her ancestral land in Waikanae being seized under the act.
Te Tiriti spokesperson for the Greens, Catherine Delahunty, says the party has created its own specific policy which outlines how to have the act amended.
Ms Delahunty said it wants to change the legislation and any other law to ensure that Maori freehold land cannot be compulsorily acquired.
She believed it is important in the first to honour Te Tiriti o Waitangi.
The MP said although the Green Party isn't in power, it would do everything it can including writing a member's bill to have the legislation changed.
In June, the New Zealand Transport Agency and Land Information decided not to appeal against two court decisions which prevented Patricia Grace's land from being taken for the Kapiti Expressway.
The Maori Land Court recommended that the ancestral land be given protective status, and the Environment Court found it was not necessary to take that specific block of land.