Brazil’s Second-Highest Court Justice Under Federal Probe
Politics
Key Facts
—The decision. Supreme Court (STF) Justice Cristiano Zanin authorized the Federal Police to investigate STJ Justice Moura Ribeiro.
—The inquiry. It examines an alleged scheme to sell judicial decisions at the Superior Court of Justice (STJ).
—The first. Moura Ribeiro is the first STJ justice to become a formal target of the probe, which has run at the STF since 2024.
—The link. Investigators point to rulings suspected of being connected to a lobbyist and his wife.
—The response. Moura Ribeiro said he is unaware of any investigation into decisions he has issued.
For the first time, a sitting justice of Brazil’s second-highest court is a formal target of a corruption inquiry. A Supreme Court justice has cleared the Federal Police to investigate Moura Ribeiro over an alleged scheme to sell court rulings.
The Superior Court of Justice, or STJ, is Brazil’s highest court for non-constitutional matters, one rung below the Supreme Federal Court. An investigation reaching one of its justices is rare and politically charged.
Now the Federal Police have been cleared to look into one of them.
What Zanin Authorized
Supreme Court Justice Cristiano Zanin authorized the Federal Police to investigate STJ Justice Moura Ribeiro as part of an inquiry into the alleged commercialization of court rulings at the STJ.
According to the reporting, Moura Ribeiro is the first STJ justice to become a formal target of the investigation, which has been underway at the Supreme Court since 2024.
The Allegations
Investigators say some decisions issued by the justice are suspected of being connected to a lobbyist, Andreson de Oliveira Goncalves, and his wife, Mirian Ribeiro.
The move follows charges filed in May by the Prosecutor-General’s Office against nine people in the same inquiry into the alleged sale of sentences at the court.
The Justice’s Response
Through a statement, Moura Ribeiro said he is unaware of the existence of an investigation opened in relation to decisions he has handed down.
No charges have been filed against him, and the authorization allows investigators to gather evidence; it is not a finding of wrongdoing.
Why It Matters
An inquiry reaching a member of the STJ strikes at the credibility of Brazil’s higher judiciary, at a time when public trust in institutions is closely watched.
How the case proceeds, and how the courts handle one of their own, will be a test of the system’s willingness to police itself.
The Roots of Operation Sisamnes
This inquiry forms part of a wider federal effort known as Operation Sisamnes.
It probes an alleged scheme to sell judicial decisions at the STJ.
Evidence first surfaced from the mobile phone of a murdered lawyer, Roberto Zampieri.
His messages helped expose suspected intermediaries and payments.
The investigation has already led to charges against nine people.
Prosecutors filed those charges in May, before the justice became a formal target.
What Happens Next
The Federal Police will now deepen their evidence gathering under Justice Zanin’s authorisation.
Reports from the police and financial intelligence unit point to a former cabinet staffer.
That staffer worked for Moura Ribeiro in 2019 and left the court in 2021.
Investigators are examining alleged transfers linked to that period.
The Prosecutor-General’s Office will later decide whether to file charges or close the case.
No finding of wrongdoing has been made at this stage.
Frequently Asked Questions
What is Moura Ribeiro being investigated for?
Supreme Court Justice Zanin authorized the Federal Police to investigate STJ Justice Moura Ribeiro in an inquiry into the alleged sale of judicial decisions at the Superior Court of Justice.
Why is the case significant?
Moura Ribeiro is the first justice of the STJ, Brazil’s second-highest court, to become a formal target of the probe, which has run at the Supreme Court since 2024.
How has Moura Ribeiro responded?
He said through a statement that he is unaware of any investigation opened in relation to decisions he has issued. No charges have been filed against him.
Sources
- CNN Brasil – Zanin autoriza investigar ministro do STJ em esquema de venda de sentenca
- CartaCapital – Zanin autoriza PF a investigar ministro do STJ em caso sobre venda de decisoes
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Sources: Supreme Court (STF) Justice Cristiano Zanin.
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