Fachin assumes leadership of Master and INSS cases

The president of Supremo Tribunal Federal (STF), Luiz Edson Fachin, took over on Saturday (12.Sep.2026) the report of the investigations related to the frauds of Banco Master and INSS. With the decision, he will conduct the session on Tuesday (15 September 2026) that will analyze whether the Federal Police cites Minister Alexandre de Moraes in conversations with Daniel Vorcaro, founder of the bank.

The measure was taken after Moraes himself requested the investigation of possible abuse of authority by the minister André Mendonça. In a statement, Fachin said that since there is already a request for such an examination, he, as president, will take over the case to avoid possible impediments from the ministers.

Understand the context of the decision

The investigations into fraud in Banco Master and INSS gained a new chapter with the procedural handling. The report was previously under the responsibility of another minister, but the suspicion of abuse of authority raised by Moraes created a standoff.

Mr Fachin cited Rule 13, paragraph XV, of the Rules of Procedure of STF to justify the replacement of the rapporteur. The operative part allows the President to adopt measures necessary for the order of work and the regularity of proceedings.

"Considering the possibility that the result of the deliberation of PET 16.662 will lead to the application of Article 144 IV of the Code of Civil Procedure, I order, on the basis of Article 13, XV, of the Rules of Procedure of Supremo Tribunal Federal, the Judicial Secretariat, to replace the report of PET 16.662 for the Presidency of Supremo Tribunal Federal," declared the

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What is at stake in the session

The session on Tuesday (15) will be decisive in clarifying the content of the conversations between the Federal Police and Daniel Vorcaro. The mention of the name of Alexandre de Moraes in dialogues related to fraud raised questions about the minister’s conduct.

Moraes’ request to ascertain possible abuse of authority by Mendonça indicates the existence of internal divergences in the court. Fachin, by centralizing the report, seeks to ensure impartiality and prevent ministers from declaring themselves prevented from judging the case.

The source did not detail the exact content of the conversations or the specific role of each involved. However, the movement suggests that the case may have significant developments for the progress of the investigations.

Procedural impacts

Fachin’s decision has direct implications for PET 16,662. By taking over the report, the president of STF controls the agenda and the next steps of the process.

Article 144, paragraph IV, of the Code of Civil Procedure, mentioned in the order, deals with the impediment of the judge when he is a presumptive heir, a donor or an employer of one of the parties. The reference indicates Fachin's concern to avoid future nullities.

With the rapporteur in the Presidency, any suspicions about the impartiality of other ministers are removed. This ensures greater legal certainty for the analysis of the case.

Repercussions and next steps

Fachin’s performance takes place at a time of heightened attention to the STF. The investigations involving the Banco Master and the INSS already mobilize control bodies and public opinion.

Tuesday’s session will be closely followed by lawyers and the press. The result may influence the course of the examinations and the image of the court before society.

The Boca no Trombone Portal will continue to monitor the developments of the case and will bring updates once new information is confirmed by official sources.

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Moraes tries to change the STF to investigate Mendonça

Moraes tries to judge Mendonça together at STF on Tuesday

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