At the heart of the impeachment trial of Vice President Sara Duterte is a debate over the Bank Secrecy Law, with the defense arguing that bank records of the vice president and her husband, Mans Carpio, are confidential and cannot be examined by the impeachment court. The claim has revived questions about whether the decades-old law remains relevant or has become an obstacle to accountability.Philstar Biz reported that the defense team is relying on Republic Act No. 1405, which prohibits the disclosure of bank deposits in any inquiry or investigation without the depositor's consent.

Legal experts and impeachment prosecutors have countered that the privilege is not absolute, especially in proceedings involving high-ranking officials. They argue that the Constitution grants the impeachment court broad investigative powers and that banking secrecy cannot be used to shield evidence of potential misconduct. The standoff highlights the tension between privacy rights and the public's right to know in cases of alleged corruption or betrayal of public trust.

The Supreme Court has yet to rule definitively on the applicability of the Bank Secrecy Law to impeachment proceedings, leaving the trial's evidentiary boundaries unclear. As the defense continues to object, the impeachment court must decide whether to compel the production of the bank records or uphold the confidentiality claim. The outcome could set a precedent for how financial privacy is balanced against legislative oversight in the Philippines.