Prosecution to Present 25 Witnesses, Including Hostile Insiders, in Duterte Impeachment Trial

MANILA, Philippines — Laying down a extensive blueprint to legally anchor the case against the nation’s second-highest official, House prosecutors are finalizing a highly formidable lineup for the Senate Impeachment Court. The prosecution team is prepared to present at least 25 distinct witnesses to systematically prove the four constitutional grounds detailed in the Articles of Impeachment against Vice President Sara Duterte.

The disclosure was made by Batangas Representative Gerville Luistro during an online media briefing, where she confirmed that the bulk of the evidentiary heavy-lifting will focus on allegations of confidential fund mismanagement and unexplained wealth.

To keep the highly anticipated trial structured and prevent overlapping delays, the House prosecution panel—which has split its responsibilities among designated sub-groups—is assigning specific witness blocks to address individual charges:

[ House Prosecution Panel: 25-Witness Strategy Map ]
                         │
        ┌────────────────┴────────────────┐
        ▼                                 ▼
  [ VOLUMINOUS TRACKS ]              [ TARGETED CHARGES ]
  • **Confidential Fund Misuse:**     • **Bribery Allegations:** Focusing 
    Covering OVP/DepEd financial       on cash-filled "payola envelopes" 
    disbursals and liquidations.       allegedly handed out to officials.
  • **Unexplained Wealth Portfolio:** • **Grave Threats:** Minimal, tightly 
    Tracking suspicious bank sweeps    focused testimonies covering specific 
    and assets flagged by the AMLC.   verbal or physical intimidations.

Luistro noted that because the confidential fund and bribery grounds involve the exact same administrative offices, any overlapping testimonies will be heavily restricted to these areas. “For unexplained wealth, they are entirely different witnesses. For grave threats, entirely different witnesses,” Luistro explained.

A key element of the prosecution’s tactical approach is the intentional summoning of “hostile witnesses.” In legal terms, a hostile witness is an individual called to the stand by a specific side but whose true alignment, personal loyalty, or professional position lies with the opposing party (the respondent).

                            [ EVIDENTIARY WITNESS MATRIX ]
                                           │
         ┌─────────────────────────────────┴─────────────────────────────────┐
         ▼                                                                   ▼
   [ HOSTILE INSIDER COERCION ]                                        [ THE STAR COOPERATORS ]
   • **The Subpoena Strategy:** Prosecutors will legally compel key    • **The Madriaga Ledger:** Former OVP staffer **Gregorio Madriaga** 
     bureaucrats and ranking staffers from the Office of the Vice         is formally confirmed as one of the 25 witnesses. 
     President (OVP) and the Department of Education (DepEd) to testify.• **The 1-Day Liquidation:** Madriaga previously testified that 
   • **The Committee Playbook:** Luistro confirmed these individuals     a massive ₱125 million in 2022 secret funds was wiped out and 
     are the same figures grilled during the House good government        fully liquidated in just a single day, rather than the legally 
     hearings, ensuring their prior testimonies are locked on record.     asserted 11-day window.

The prosecution also plans to leverage heavy institutional data. On April 22, the panel secured a major breakthrough when Anti-Money Laundering Council (AMLC) Executive Director Ronel Buenaventura formally confirmed the detection of multiple “covered and suspicious transactions” stretching across bank accounts tied directly to Duterte and her immediate relatives.

As the House prosecutors divide their workloads—with Manila Representative Joel Chua taking point on the complex Article I confidential fund track alongside human rights lawyers Chel Diokno and Leila de Lima—the formal legal clock is running down.

While administration critics continue to claim the case is a multi-million-peso political theater, House leaders flatly reject the narrative, stating that the trial is an essential, independent constitutional process demanded by the public to address severe gaps in governance transparency.