Jair Bolsonaro has been detained after authorities concluded he posed a definite escape threat while under domestic detention.
The ex-president was found guilty of plotting a military coup in the ninth month and given more than a 27-year term in incarceration, but he remained under home detention pending court reviews.
Top Judicial Official Alexandre de Moraes said the action to imprison the elderly politician was a precautionary step after fresh information were revealed.
This encompassed attempting to break his electronic bracelet and a summons to a supporters' gathering that could enable a potential flight.
Judicial Records Show Escape Risks
In a filing authorising the detention, the judge said intelligence from the centre monitoring the former president's confinement suggested the ex-president's aim to disable the electronic ankle bracelet to ensure success in his flight.
This, it said, would be assisted by the chaos caused by the demonstration called by his son.
His son, Flávio, who holds office as a senator, called for a meeting of his supporters near Bolsonaro's home to take place on Saturday night.
His son wrote on digital networks on the previous day: Do you plan to struggle for your nation, or see it all from your phone there on your couch? I urge you to fight with us."
He said the vigil would be so supporters could "pray for his well-being and for the restoration of democratic rule in our land."
Foreign Shelter Risks
Part of the judge's ruling was the possibility of the former president's move to embassies near the residence, considering that the probes revealed a history of planning to request asylum through a consular facility", a announcement said.
The legal document emphasizes that the United States embassy in the national capital, Brasilia, is situated around 8 miles from his dwelling.
Global Responses
His judicial problems have provoked anger from fellow populist conservative United States President Donald Trump, causing him to implement a 50% tariff on goods coming from Brazil.
The former president is being detained in a federal law enforcement building in the capital and will undergo a imprisonment assessment on Sunday.
Latest Court Petitions
It was only on last Friday that the former president's lawyers asked the High Court to permit him to complete his entire prison term under domestic detention, with tracking devices.
They also asked that Bolsonaro be permitted to exit his dwelling for medical treatment, saying he demanded ongoing care for lung conditions and other illnesses.
Details of Guilty Verdict
He was convicted of leading a plot aimed at retaining his authority after he lost the national vote to his left-wing rival, Luiz Inácio Lula da Silva.
High Court judges said that he was aware of a plot which included plans to murder his opponent and his VP candidate, Geraldo Alckmin, and to imprison and murder Alexandre de Moraes - the top judicial official who has been presiding over Bolsonaro's trial.
The scheme was prevented because it failed to get the backing of the armed forces officials. His successor was sworn in without incident on 1 January 2023.
But a following week, on the eighth of January, numerous his backers stormed and vandalised official structures in the federal district, Brazil's capital.
The security forces intervened and around approximately 1,500 persons were arrested.
The magistrates found that the demonstrators had been provoked by him whose strategy, they said, was for the country's army to step in, restore order and return him to office.
At the period, the legal team called the 27 years and three months sentence "absurdly excessive.
He was also barred from campaigning for office until twenty-sixty - eight years after the conclusion of his imprisonment.
The one-time head of state called the court case a political persecution and said it was intended to stop him running in the 2026 presidential election.