Protecting Te Tiriti · Evidence Series · Part 15
Who benefits from each constitutional model?
The useful question is not which model is “for Māori” or “for everyone else”. A constitution allocates public power. Different models determine who may make binding decisions, who must negotiate, who can challenge or block another institution, how representation is obtained, and what happens when authorities disagree. Every model protects some forms of power more strongly than others. The proper audit is therefore to identify the allocation openly rather than disguise it as a debate about symbolism or ethnicity.
Current parliamentary modelMMP representationTreaty protectionMatike Mai six models2026 reform proposals
“Benefit” in this part means constitutional advantage: increased decision-making authority, stronger legal protection, greater representation, a veto or consent right, improved access to remedies, or greater institutional security. It does not mean that every person within a group will support the model or receive the same material outcome.
1. Start with the current model: electoral equality does not equal equal constitutional jurisdiction
New Zealand currently uses MMP to choose the House of Representatives. Each voter has a party vote and an electorate vote, and the party vote largely determines each party's share of seats. Governments usually need negotiated majority support in the House.
That gives citizens substantial power over who governs. But once legislation is validly enacted, section 15 of the Constitution Act says Parliament has full power to make laws. New Zealand courts cannot invalidate an Act merely because they consider it inconsistent with higher constitutional rights, and section 4 of the New Zealand Bill of Rights Act expressly prevents courts from refusing to apply legislation for inconsistency with that Act.
Strongest constitutional advantage
The parliamentary majority or governing coalition retains final legislative authority, subject mainly to electoral accountability, political conventions, procedural protections and any legal limits Parliament has itself made operative.
Strongest democratic advantage
All enrolled voters participate in choosing Parliament through the same proportional electoral system, with Māori voters also able to choose between the general and Māori rolls under the electoral framework.
For hapū and iwi, the current model offers representation, statutory rights, Treaty clauses, Tribunal processes, settlements and negotiated institutions. But those mechanisms generally operate inside a constitutional order in which Parliament retains ultimate law-making power.
2. The current system therefore benefits two different ideas of democracy at different levels
At the electoral level, MMP benefits proportional representation and coalition bargaining. Smaller parties can obtain parliamentary representation in proportion to their party vote, and governments commonly require negotiation between parties.
At the constitutional level, however, the system remains majoritarian in the deeper sense that a sufficient parliamentary majority can usually change ordinary legislation, including many statutory Treaty protections. Courts may interpret legislation and review executive action, but they do not possess a general power to invalidate Acts of Parliament.
The current model strongly protects the democratic right to help choose the national legislature. It protects independent hapū jurisdiction much less strongly because Māori authority is usually recognised through powers Parliament defines, delegates, protects or agrees to respect.
3. Stronger Treaty protection inside the current constitution changes the restraints — not necessarily the source of authority
A second model keeps Parliament as the central legislature but makes Treaty obligations harder to ignore. This could include entrenchment, stronger statutory Treaty clauses, binding remedies, consent requirements, an independent Te Tiriti body, or expanded judicial supervision.
Under this architecture, Māori claimants and institutions benefit because existing rights become harder for an ordinary majority or executive decision-maker to remove or bypass. Courts, commissions or the Waitangi Tribunal may gain stronger remedial authority if legislation expressly grants it.
Parliamentary and executive institutions give up some unilateral flexibility because they become subject to additional procedural or substantive constraints. But unless the reform creates an autonomous sphere of Māori jurisdiction, the underlying constitutional structure can remain parliamentary.
The principal beneficiary is the holder of the protected right or guarantee. The principal institutional cost falls on the state actor whose freedom to act unilaterally is reduced. That is not the same thing as transferring the state's underlying jurisdiction.
4. The present Waitangi Tribunal shows the difference between a remedy and governing authority
The Tribunal can investigate Crown action, determine Treaty meaning for the purposes of its Act, and make recommendations. In most areas its recommendations do not bind the Crown, although special statutory regimes permit binding recommendations in defined land contexts.
That architecture gives Māori claimants an independent inquiry forum and can impose major political and evidential pressure on the Crown. It does not generally give the Tribunal final legislative authority over Parliament.
The distinction matters because a constitutional model may substantially strengthen Māori remedies without creating a separate rangatiratanga legislature.
5. Te Pāti Māori's 2026 entrenchment package is a useful hybrid example
The party's September 2026 policy proposes stronger protections inside the current state system — including an independent Te Tiriti Commission, binding Waitangi Tribunal recommendations and enforceable compliance mechanisms — while separately funding Māori-led constitutional transformation through the proposed Mātike Mai Fund.
Those are two different reallocations of power. The first would increase the enforceability of Treaty constraints within the existing legal system. The second would resource a process capable of considering an alternative constitutional architecture.
It is possible to strengthen Māori rights inside Westminster while simultaneously exploring a constitutional system in which rangatiratanga is no longer dependent upon Westminster recognition. Those projects should not be collapsed into one.
6. Matike Mai Model 1: Iwi/Hapū gain a distinct national constitutional sphere
Model 1 contains an Iwi/Hapū assembly in the rangatiratanga sphere, the Crown in Parliament in the kāwanatanga sphere, and a joint deliberative body in the relational sphere.
| Constitutional effect | Who gains | Who is constrained |
|---|---|---|
| Independent Māori decision sphere | Iwi and hapū obtain institutional authority that is not merely advisory to Parliament. | Parliament can no longer be treated as the only constitutionally relevant decision-maker across every sphere. |
| National joint forum | Both rangatiratanga and kāwanatanga actors gain a formal place to decide shared matters. | Neither side can simply treat shared questions as exclusively its own if the constitution assigns them to the relational sphere. |
The principal representation risk is obvious: Māori who are disconnected from, inadequately represented by, or contest the mandate of recognised iwi or hapū structures may question how their voice enters the rangatiratanga sphere. The model therefore needs transparent rules for mandate, selection, accountability and overlapping whakapapa.
7. Matike Mai Model 2: urban and other Māori representation gains constitutional space
Model 2 deliberately modifies the first model. Its rangatiratanga sphere includes iwi, hapū and other Māori representation, including Urban Māori Authorities, alongside the Crown sphere and a joint relational body.
The principal beneficiaries compared with Model 1 are Māori whose political and social lives are not adequately represented through a solely iwi/hapū institutional structure. Urban Māori organisations gain a potential constitutional voice rather than being forced to participate only through tribal institutions.
The trade-off is representational complexity. If different Māori institutions claim authority over the same person, service, community or issue, the constitution must determine whose mandate governs which decision. Broadening representation solves one exclusion problem while creating a harder mandate-allocation problem.
8. Matike Mai Model 3: regional decision-making gains at the expense of national uniformity
Model 3 retains an Iwi/Hapū rangatiratanga sphere and Crown Parliament, but places the relational function in regional assemblies made up of iwi, hapū and Crown representatives.
This benefits hapū and iwi seeking decisions closer to their rohe and allows shared authority to reflect regional whakapapa, histories, resources and institutions. It can also benefit Crown and local actors by creating a more direct place-based negotiation structure.
The corresponding trade-off is national consistency. Different regions may develop different agreements, standards and institutional practices. That may be constitutionally desirable where circumstances differ, but it requires careful rules for issues that cross rohe, national infrastructure, fiscal transfers and disputes between regions.
9. Matike Mai Model 4: direct Iwi/Hapū–Crown relationships receive the strongest structural protection
Model 4 is the most institutionally layered. It includes a rangatiratanga assembly, the Crown in Parliament, constitutionally mandated direct Iwi/Hapū–Crown relationships, and a broader relational assembly.
The clearest beneficiary is the direct relationship itself. Iwi and hapū need not rely exclusively on a single national Māori body to speak to the Crown, while broader issues can still enter a wider relational forum.
This may better protect distinct hapū authority and reduce the risk that one national Māori institution becomes a new centralised authority over every community. But it carries the highest coordination cost: multiple mandates, overlapping interests, duplicated forums and potentially difficult questions about which body has jurisdiction over a particular issue.
A constitutional model can reduce Crown centralisation while accidentally creating Māori centralisation. Model 4 is important because it tries to preserve direct iwi and hapū relationships rather than assuming one national Māori body should control every rangatiratanga question.
10. Matike Mai Model 5: the joint assembly gains, but separate autonomy is surrendered
Model 5 is fundamentally different. Iwi/Hapū and the Crown make decisions together in one constitutionally mandated assembly. There are no separate rangatiratanga and kāwanatanga spheres; there is only the relational sphere.
This benefits those who favour one integrated constitutional decision-making institution and may reduce boundary disputes about whether an issue belongs to one sphere or another.
But the price is substantial. Neither Māori nor the Crown retains a constitutionally separate autonomous chamber under the model as described. Whether rangatiratanga is protected therefore depends heavily on the assembly's voting rules, consensus requirements, representation formula and protection against one bloc numerically dominating another.
A single assembly does not tell us who controls it. A one-sphere model could be deeply consensual or effectively majoritarian depending on the decision rule. Representation without a protected consent mechanism may not preserve independent authority.
11. Matike Mai Model 6: separate autonomy is strongest, but the relationship mechanism is weakest
Model 6 consists of an Iwi/Hapū assembly and the Crown in Parliament. It has distinct rangatiratanga and kāwanatanga spheres but no separate relational sphere.
This most clearly benefits actors who prioritise institutional separation and independent decision-making within defined jurisdictions. It reduces the risk that a joint body gradually absorbs or overrides the autonomy of either sphere.
Its weakness appears exactly where issues overlap. Water, infrastructure, taxation, migration, environmental effects, national security, health systems and many other matters do not fit neatly into a single jurisdiction. Without a dedicated relational institution, the constitution needs another mechanism for negotiation, conflict resolution and enforcement between the two spheres.
12. The six models therefore distribute Māori power differently — they do not simply increase it uniformly
| Model | Power most strengthened | Main constitutional vulnerability |
|---|---|---|
| 1 | National iwi/hapū authority plus national joint decision-making. | Representation of urban, disconnected or differently organised Māori. |
| 2 | Broader Māori representation including urban authorities. | Overlapping mandates and determining which Māori institution speaks for what. |
| 3 | Regional iwi/hapū influence over shared matters. | Cross-regional coordination and national consistency. |
| 4 | Direct iwi/hapū relationships with the Crown plus wider joint forums. | Institutional complexity, duplication and jurisdictional overlap. |
| 5 | Integrated joint decision-making. | Loss of separate autonomous spheres; decision rules become decisive. |
| 6 | Maximum separation of rangatiratanga and kāwanatanga institutions. | No dedicated relational mechanism for overlapping authority. |
13. Tangata Tiriti and the wider public are not constitutionally irrelevant under the transformative models
Matike Mai expressly retains a kāwanatanga sphere in most of its models. The Crown in Parliament therefore continues to exercise public authority within its constitutional domain rather than disappearing from the system.
The democratic question becomes how the kāwanatanga sphere continues to represent the public, what issues remain within that sphere, and what matters require agreement with the rangatiratanga sphere. MMP could theoretically continue operating within a redefined kāwanatanga chamber; constitutional transformation does not logically require abandoning proportional elections.
The major change is that a national electoral majority would no longer necessarily be sufficient authority for every question if the constitution assigns some matters to rangatiratanga or the relational sphere.
14. Courts and constitutional adjudicators are another potential beneficiary — but only if the final constitution gives them power
None of the Matike Mai model labels alone tells us who interprets boundaries between spheres or what happens when institutions disagree about jurisdiction. A transformed constitution would need to decide whether disputes are resolved by ordinary courts, a new constitutional court, tikanga-based bodies, negotiated panels, relational institutions, or some combination.
If a higher-law constitution authorises a court or tribunal to invalidate decisions inconsistent with constitutional allocations, that institution gains authority presently denied to New Zealand courts in relation to Acts of Parliament. If disputes must instead be resolved politically or by consensus, judicial power may remain comparatively limited.
A constitutional division of power is incomplete until the system identifies who decides whether an institution has exceeded its sphere and what remedy follows.
15. The real fault line is not race — it is unilateral power versus distributed power
The current model concentrates final legislative authority in one Parliament elected by the public. Treaty-protection models retain that architecture but place stronger legal restraints around it. Matike Mai's multi-sphere models distribute constitutional authority between institutions and require some issues to be decided outside, or jointly with, the ordinary parliamentary chain.
That means the central trade-off is constitutional rather than ethnic. A distributed model reduces the ability of one institution to decide everything unilaterally. In exchange it creates more veto points, negotiation requirements, boundary disputes, coordination costs and mandate questions.
| Architecture | Who receives the strongest advantage? | What power is reduced? |
|---|---|---|
| Current parliamentary supremacy | Electoral majority/coalition and national legislature. | Independent constitutional vetoes outside Parliament. |
| Stronger Treaty protection within Parliament | Māori rights-holders, claimants and institutions protected by enforceable duties; reviewing institutions where powers are granted. | Unilateral executive and ordinary legislative flexibility. |
| Separate rangatiratanga sphere | Iwi/hapū or other constitutionally mandated Māori institutions. | Parliament's claim to comprehensive jurisdiction. |
| Relational/shared sphere | Both constitutional parties on matters requiring joint authority. | Either side's ability to decide shared questions alone. |
| Highly autonomous two-sphere model | Each sphere within its own jurisdiction. | Centralised uniform government; ease of resolving overlap. |
16. The unanswered mandate question may be more important than the model diagram
Before any transformative model could claim democratic legitimacy, it would need to answer who selects the rangatiratanga representatives and by what authority. “Iwi”, “hapū”, “Urban Māori Authority”, “Māori organisation” and “Māori electorate” are not interchangeable mandates.
A credible design would need rules for whakapapa-based membership, people belonging to several hapū or iwi, Māori living outside their rohe, urban communities, representation of individuals who reject a particular corporate body, rangatahi, succession, recall, conflicts of interest and accountability back to the communities whose authority is being exercised.
The same scrutiny applies to the Crown side: whether “the Crown” means Cabinet, Parliament, the public generally, local government, or different institutions for different functions.
A model does not protect rangatiratanga merely because an institution is labelled Māori. The institution must be able to show whose authority it is exercising, how that authority was conferred, what its jurisdiction is, and how the people within that jurisdiction can hold it accountable.
17. The finding for this series
The evidence does not support a simplistic claim that one constitutional model benefits “Māori” and another benefits “everyone”. Each model allocates different forms of public power to different institutions.
The current system gives the national electorate strong control over who enters Parliament and gives Parliament final law-making authority. Stronger Treaty protection would benefit Māori rights-holders by making Crown obligations harder to remove or ignore while still potentially leaving Parliament as the principal constitutional source of law. Matike Mai's models go further by reallocating actual jurisdiction — but they distribute that authority differently among iwi, hapū, urban Māori institutions, the Crown, regional bodies and joint institutions.
No model eliminates trade-offs. More autonomous authority means less unilateral central power. More joint decision-making means more negotiation and potential deadlock. Broader Māori representation can improve inclusion while complicating mandate. Strong separation can protect independence while making shared problems harder to resolve.
So the serious question is not “who gets special treatment?” It is: who receives binding decision-making authority over which subject, from what mandate, subject to what checks, and who decides when jurisdictions overlap?
We have now separated the Treaty text, Treaty principles, Crown protections, rangatiratanga, parliamentary supremacy, Matike Mai and the allocation of constitutional power. The remaining task is to bring those findings together and answer the original question without collapsing them: when someone says “protect Te Tiriti”, what exactly are they asking to protect?
Primary and current sources
Constitution Act 1986, s 15 — Parliament's current full law-making power ↗
Elections NZ — MMP, proportional parliamentary representation and government formation ↗
Courts of New Zealand — parliamentary sovereignty and limits on judicial invalidation ↗
New Zealand Bill of Rights Act 1990, s 4 — inconsistent legislation remains applicable ↗
Waitangi Tribunal — present jurisdiction and recommendation role ↗
Matike Mai Aotearoa — spheres of authority and constitutional model overview ↗
Matike Mai Aotearoa — full 2016 report and six indicative models ↗
Te Pāti Māori — 1 September 2026 entrenchment and constitutional transformation policy ↗