In response to a rejected CPI report proposing his indictment, STF Justice Gilmar Mendes on April 15 requested Attorney General Paulo Gonet investigate Senator Alessandro Vieira for abuse of authority, citing deviation from the commission's organized crime focus.
Following the CPI on Organized Crime's rejection of his final report the previous day—which accused STF Justices Gilmar Mendes, Dias Toffoli, and Alexandre de Moraes, plus PGR's Paulo Gonet, of responsibility crimes tied to Banco Master—Justice Mendes filed a five-page representation with the PGR. He argued Vieira's proposal lacked foundations, conflated administrative issues with crimes, exceeded the CPI's remit on militias, laundering, and trafficking, and meddled in judicial calls like habeas corpus.
Mendes highlighted a STF presidential reprimand calling the move an arbitrariness undermining democracy. Vieira retorted: "I won't bow to threats."
Meanwhile, opposition figures like Bia Kicis (PL-DF) and Marcel van Hattem (Novo-RS) urged Justices Luiz Fux and André Mendonça at the STF about perceived congressional attacks, with Kicis claiming "war" between branches.
This escalates tensions in the Maridt Participações and Banco Master secrecy disputes under CPI scrutiny, following STF rulings upholding detentions and denying appeals on secrecy lifts.
