STF Authorizes Inclusion of STJ Minister Marco Buzzi in Sisamnes Inquiry

Overview

• The STF relator Cristiano Zanin authorized Buzzi’s formal inclusion in the secret federal inquest linked to Operation Sisamnes on Friday, expanding a probe of alleged sale of draft votes at the Superior Tribunal de Justiça.
• Investigators at the Federal Police are analyzing documents and data that reference Buzzi and family members to determine whether there are criminal indications against them.
• The Prosecutor‑General’s Office has already denounced nine people to the STF for an alleged scheme that operated from 2019 to December 2023 and has recommended applying compulsory retirement to Buzzi in the administrative case.
• Buzzi remains suspended from the STJ since February and faces a closed Processo Administrativo Disciplinar set for August 6; he has reinforced his legal team, filed a 262‑page written defense, and submitted medical evidence to contest the accusations.
• The overlap of a secret criminal inquest, a sealed internal trial and limited public evidence raises questions about judicial integrity and means the next steps to watch are the PF’s findings and the STJ’s closed ruling, which could remove him from office even as criminal inquiries continue.