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When the Witness Becomes the Accused — The Perjury Gambit in Sara Duterte's Impeachment Fight


The hallway outside the Taguig City Prosecutor's Office buzzed with anticipation Wednesday morning. Cameras flashed. Reporters jostled for position. And at the center of it all: Vice President Sara Duterte, flanked by counsel Salvador Paolo Panelo Jr., stepping forward not to defend—but to strike.

She came to file a criminal complaint for perjury against Ramil Madriaga, a man who had emerged as a key witness in the impeachment complaints filed against her in the House of Representatives
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. Madriaga, who claimed to be her former aide and alleged "bagman," had sworn under oath that he delivered large sums of money under her instruction
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"Hindi maaaring hayaang gamitin ang mga imbentong kuwento upang linlangin ang publiko," Duterte declared in a statement. "We cannot allow fabricated stories to be used to deceive the public."
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This was not a procedural footnote. It was a calculated legal counterstrike—and it changes everything.

The Dual Arena: Congress vs. The Courtroom

What unfolds now is a rare, high-stakes convergence of two parallel tracks:
🔹 Arena One: The House of Representatives
Where impeachment proceedings—political in character, governed by rules of evidence but driven by numbers and narrative—continue to advance
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🔹 Arena Two: The Office of the City Prosecutor of Taguig
Where a criminal complaint for perjury, anchored on Article 183 of the Revised Penal Code, now places Madriaga himself under scrutiny for allegedly making false statements under oath
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Dalawang arena na ngayon ang laban. Two battlegrounds. One witness. And a single, piercing question hanging over both:
If the testimony that helped fuel the impeachment narrative is now alleged to be false… how reliable is the foundation upon which the accusations rest?

Why Perjury Is Not a "Technicality"

Under Article 183 of the Revised Penal Code, perjury is defined as the willful and corrupt assertion of a falsehood under oath, on a material matter, in a case where the law requires such an oath
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. It is not a minor offense. The penalty ranges from arresto mayor to prisión correccional—and recent amendments under Republic Act No. 11594 have increased these penalties to underscore the gravity of lying under oath
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The legal principle is clear: sworn testimony is the bedrock of judicial and quasi-judicial proceedings. When that bedrock cracks, the entire structure risks collapse.
Duterte's legal team appears to be invoking this principle strategically. By challenging Madriaga's credibility at its source—alleging he is not just mistaken, but knowingly false—they aim to create reasonable doubt not only in a criminal court, but in the court of public opinion and, critically, in the deliberations of lawmakers.
"Si Madriaga ay isang akusado sa kasong kidnapping na nagpanggap na campaign supporter at mula roon ay biglang lumitaw bilang testigo kuno sa impeachment laban sa akin," Duterte stated. "Because of this, today I have filed a perjury case against Ramil Madriaga to finally hold him accountable for his lies."
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The Credibility Calculus: Politics, Perception, and Proof

Let us be unequivocal: A perjury complaint does not automatically halt impeachment proceedings. The Constitution grants the House sole power to initiate impeachment; it is not bound to await the outcome of a parallel criminal investigation
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Impeachment is political in character.
Yet politics, like law, runs on trust. And trust is built on credibility.
When a key witness suddenly becomes the subject of a criminal complaint for allegedly lying under oath, the narrative shifts. Lawmakers weighing the impeachment complaint must now ask:
  • Is this witness's testimony corroborated by independent evidence?
  • Does his account hold up under cross-examination—or under the scrutiny of a prosecutor?
  • If his statements change to avoid perjury charges, does the impeachment case lose coherence? If he repeats them and they are later proven false, does that strengthen the perjury case—and weaken the impeachment?
Either way, credibility is now under a microscope.
Duterte has framed this move as part of a broader pattern. She cited the International Criminal Court's alleged reliance on testimonies from Arturo Lascañas and Edgar Matobato—witnesses whose accounts she claims were fabricated and previously challenged
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. Her message: Do not let history repeat itself.

What Happens Next?

🔸 At the Prosecutor's Office: The complaint will undergo preliminary investigation. Madriaga will be given opportunity to submit a counter-affidavit. Probable cause may be found—or not. The process can take months.
🔸 In the House of Representatives: Committees will continue evaluating the impeachment complaints. They may subpoena Madriaga. They may weigh the perjury filing in their assessment of witness reliability. Or they may proceed independently, viewing the legal move as a political tactic.
🔸 In the Public Sphere: The story is already shaping perception. For Duterte's supporters, this is a bold defense of truth. For critics, it may appear as an attempt to intimidate a witness. The battle for narrative is as fierce as the legal one.

The Bigger Picture: When Law Meets Politics

This moment crystallizes a tension at the heart of democratic accountability: How do we balance the political nature of impeachment with the legal imperative of truthful testimony?
Impeachment was designed as a political remedy for grave offenses—not a criminal trial. Yet it cannot function if its evidentiary foundation is built on sand.
By moving against Madriaga in the criminal justice system, Duterte is not just defending herself. She is testing a hypothesis: That in the Philippines' hybrid system of accountability, legal challenges to witness credibility can reshape political outcomes.
It is a high-risk, high-reward strategy. If the perjury case gains traction, it could erode confidence in the impeachment complaints. If it falters, it could be portrayed as a distraction.

Final Thought: The Turning Point

In legal dramas, the most dramatic turning point is rarely when the accused mounts a defense.
It is when the accuser is suddenly placed on trial.
As the perjury complaint moves forward and impeachment deliberations continue, one truth becomes unavoidable: In both arenas—Congress and the courtroom—the weight of a single question will grow heavier with each passing day:
If the witness cannot be trusted… how strong is the accusation built upon that witness?
Abangan natin. The story is far from over.
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#RegalPOV
📸 Photo credit: Inquirer / John Louie Abrina
Sources: Tempo, Inquirer.net, ABS-CBN News, PNA, Official Gazette
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Editor's Note: This feature analyzes developments as of March 4, 2026. Impeachment proceedings and criminal investigations are ongoing. All parties are presumed innocent until proven guilty under Philippine law.