1987 Constitution of the Philippines
Section 16. No loan, guaranty, or other form of financial accommodation for any business purpose may be granted, directly or indirectly, by any government-owned or controlled bank or financial institution to the President, the Vice-President, the Members of the Cabinet, the Congress, the Supreme Court, and the Constitutional Commissions, the Ombudsman, or to any firm or entity in which they have controlling interest, during their tenure.