NCIP Jurisdiction Under IPRA

News hook: On September 9, 2026 the Supreme Court's Third Division, in a decision written by Associate Justice Henri Jean Paul B. Inting, clarified that the National Commission on Indigenous Peoples has no jurisdiction over a dispute unless all parties are indigenous peoples from the same group. The Court dismissed a petition by Elvin and Jocelyn Sending, who — only after an unlawful detainer judgment against them had become final and executory — claimed membership in the Lumad KKK-Alimaong Higaonon Tribe and argued that customary law and the Dadantulan Tribal Court, not the trial court, should have decided the property dispute.

Legal question

When does a dispute involving indigenous peoples go to the NCIP and customary law rather than to the regular courts — and can indigenous status be raised for the first time after a judgment is final?

Applicable laws and rules

Republic Act No. 8371 (Indigenous Peoples' Rights Act of 1997, or IPRA), Section 66 — jurisdiction of the NCIP over claims and disputes involving the rights of indigenous cultural communities and indigenous peoples
IPRA, Section 65 — primacy of customary law and practices in resolving disputes involving indigenous cultural communities
IPRA, Sections 3 and 4 — definitions of ancestral domain, ancestral land, and indigenous cultural communities
IPRA, Sections 51 to 53 — delineation and recognition of ancestral domains, and Certificates of Ancestral Domain Title and Ancestral Land Title
IPRA, Sections 57 and 59 — free and prior informed consent and NCIP certification precondition
Rules of Court, Rule 70 — forcible entry and unlawful detainer
Batas Pambansa Blg. 129, as amended — jurisdiction of the first-level courts over ejectment cases
Doctrine of immutability of final judgments

Why this matters

IPRA created a genuine parallel system: customary law, tribal dispute mechanisms, and an administrative commission with real adjudicatory power. Where it applies, it displaces the ordinary courts. Where it does not, invoking it wastes years.

The boundary is therefore worth knowing precisely, and it is narrower than commonly assumed. Section 66 is not a general grant of jurisdiction over anything touching indigenous peoples. It is a rule about disputes within a community.

The case also illustrates a hard procedural truth that reaches well beyond indigenous rights: a jurisdictional objection raised only after judgment has become final, by a party that litigated all the way to the Court of Appeals without mentioning it, is very unlikely to succeed.

What happened

Kristoffer R. Co Uy filed an unlawful detainer case against Elvin and Jocelyn Sending, seeking to have them vacate a property registered in his name. The Municipal Circuit Trial Court, the Regional Trial Court, and the Court of Appeals all ruled in his favor and ordered the Sendings to vacate.

When the Court of Appeals ruling became final and executory, the MCTC granted Co Uy's motion and issued a resolution directing enforcement. Only at that point did the Sendings question the MCTC's jurisdiction. They asserted — for the first time — that they were members of the Lumad KKK-Alimaong Higaonon Tribe and that customary laws, traditions, and practices should govern the property dispute under IPRA, with jurisdiction belonging to the NCIP and the Dadantulan Tribal Court rather than the MCTC. They asked to suspend execution pending resolution of the jurisdictional question.

The MCTC held it could no longer act on the motions because the Court of Appeals decision had already become final. The Supreme Court agreed and dismissed the petition.

The Section 66 rule: all parties, same group

The Court's clarification is the doctrinally significant part. Under Section 66 of IPRA, the NCIP has jurisdiction over disputes involving the rights of indigenous peoples only when all parties belong to the same indigenous group. If any party is not a member of the same indigenous cultural community, jurisdiction belongs to the regular courts.

The logic follows from what Section 66 actually requires. The provision conditions NCIP jurisdiction on the parties having exhausted all remedies provided under their customary laws — and requires a certification from the Council of Elders or Leaders that the dispute has been submitted to customary process and remains unresolved. That precondition is only coherent where both sides are bound by the same customary law. A person outside the community is not subject to its Council of Elders and cannot be required to submit to a process they have no standing in.

Applied here, Co Uy was not alleged to be a member of the Higaonon tribe. Whatever the Sendings' status, the dispute was therefore between parties not belonging to the same indigenous group, and jurisdiction lay with the ordinary courts — where it had been all along.

Jurisdiction can be raised late, but not this late

There is a familiar principle that lack of jurisdiction over the subject matter may be raised at any stage, even on appeal, because a judgment rendered without jurisdiction is void. The Sendings were relying on it. Why did it fail?

Two reasons work together. First, and decisively, the objection was wrong on the merits — the MCTC did have jurisdiction, because Section 66 did not apply. There was no jurisdictional defect to raise, whenever raised.

Second, the judgment had become final and executory. Under the doctrine of immutability of judgments, a final judgment can no longer be modified even to correct errors, subject to narrow exceptions — clerical corrections, nunc pro tunc entries, void judgments, and supervening events making execution unjust. A court asked to enforce a final judgment has, as the MCTC put it, nothing left to resolve.

There is also a fairness dimension the courts weigh heavily. A party who litigates through three levels on the merits and raises jurisdiction only when execution arrives invites the objection that they were content with the forum while they thought they might win.

What IPRA does protect

Nothing in this ruling narrows the substantive rights IPRA confers. It is worth separating them from the jurisdictional question, because the rights are real and frequently under-asserted:

Ancestral domain and ancestral land rights — recognition of native title, and the issuance of Certificates of Ancestral Domain Title (CADT) and Certificates of Ancestral Land Title (CALT) under Sections 51 to 53.
Free and prior informed consent (FPIC) — under Sections 57 and 59, no concession, license, lease, or agreement affecting ancestral domain may be granted, and no government department may issue one, without FPIC obtained through the NCIP process and an NCIP certification precondition.
The right to stay in territories and not to be relocated without FPIC, plus the right to return.
Primacy of customary law under Section 65 in resolving disputes involving indigenous cultural communities — which is the doctrinal home of the same-group limitation.
Self-governance and the right to use their own justice systems and conflict-resolution institutions, to the extent compatible with the national legal system and internationally recognized human rights.

A member of an indigenous community whose ancestral land is affected by a project, a concession, or a government issuance has substantial rights here — but they are asserted before the project proceeds, through the FPIC and CADT machinery, not as an afterthought in an ejectment case over titled land.

Where the boundary usually falls

Putting the ruling together with the statute, the sorting is roughly this.

NCIP, with customary remedies first — a dispute between members of the same indigenous group over ancestral land, community membership, leadership, or the application of customary law, where the Council of Elders has been asked and the matter remains unresolved.
Regular courts — a dispute where any party is outside the group, including an ejectment case brought by a registered owner who is not a member, a claim against a corporation or an LGU, and ordinary civil or criminal cases.
NCIP administrative processes regardless of the parties — CADT and CALT delineation and issuance, and the FPIC certification process, which are functions of the Commission rather than adversarial disputes between community members.

What individuals should know

If you are a member of an indigenous cultural community with a claim over ancestral land, assert it early and through the right channel. The strongest position is a CADT or CALT already delineated and issued, or a pending application, not an assertion of tribal membership raised for the first time in the middle of someone else's case. Where a project or a government issuance affects your domain, the FPIC process is the point of leverage, and it operates before the license is granted.

If you are sued in the regular courts and believe the NCIP should have jurisdiction, raise it at the earliest opportunity — in a motion to dismiss or in your answer — and be prepared to show two things: that all parties belong to the same indigenous group, and that customary remedies have been exhausted, with the certification from the Council of Elders or Leaders that Section 66 requires. Without both, the objection will fail, and raising it late will cost you the chance to defend on the merits.

And note the general lesson for any litigant. Objections to jurisdiction are best raised at the start. Even where the law permits a late challenge, a judgment that has become final is extraordinarily difficult to unwind, and the courts will look closely at why a party stayed silent for three levels of litigation.

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