The Government has argued the review will provide greater consistency and certainty by standardising how Treaty clauses are expressed across legislation. However, the Human Rights Commission says weakening or replacing long-established Treaty clauses may instead generate fresh legal uncertainty by requiring courts, public agencies and affected communities to reinterpret decades of settled legal practice. The Commission argues Treaty clauses have developed through years of judicial interpretation and public administration, providing guidance on how government agencies should give effect to Treaty obligations in different legislative settings. The Human Rights Commission says New Zealand’s constitutional arrangements rely on legal certainty, respect for human rights and the maintenance of relationships founded on Te Tiriti. The Human Rights Commission says changes affecting constitutional relationships and fundamental rights should strengthen certainty rather than undermine it.