Jair Bolsonaro has been taken into custody after authorities found he posed a concrete flight risk while under home confinement.
The former head of state was found guilty of planning a government overthrow in the ninth month and handed more than a 27-year term in prison, but he was staying under house arrest pending appeals.
Brazilian Supreme Court Justice Alexandre de Moraes said the action to imprison the elderly politician was a preventative measure after fresh information came to light.
This encompassed trying to remove his ankle monitor and a summons to a public vigil that could facilitate a possible escape.
Court Filing Details Escape Risks
In a document approving the detention, Justice Moraes said information from the centre monitoring his home detention suggested the former leader'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 protest called by his son.
His offspring, his son Flávio, who serves as a congressional representative, called for a assembly of his followers near Bolsonaro's home to take place on Saturday night.
Flávio Bolsonaro wrote on social media on the previous day: "Are you going to fight for your nation, or see it all from your phone there on your sofa? I call on you to struggle with us."
He said the gathering would be so backers could offer prayers for his physical condition and for the reestablishment of democratic governance in our land."
Foreign Shelter Risks
Part of the magistrate's ruling was the potential of Bolsonaro's transfer to embassies near the residence, considering that the probes revealed a history of arranging to ask for protection through a consular facility", a statement said.
The legal document underscores that the United States embassy in the capital, Brazil's capital, is positioned around approximately 13 kilometers from Bolsonaro's home.
International Reactions
His judicial problems have provoked anger from fellow populist conservative US President Trump, leading him to impose a fifty percent tax on goods coming from Brazil.
He is being detained in a federal law enforcement building in the capital and will experience a custody hearing on Sunday.
Latest Court Petitions
It was only on Friday that the former president's lawyers asked the Supreme Court to permit him to serve his whole jail sentence under house arrest, with electronic monitoring.
They also requested that he be permitted to exit his dwelling for healthcare, saying he demanded regular treatment for lung conditions and other illnesses.
Background on Conviction
The former president was found guilty of heading a scheme aimed at keeping him in power after he was defeated in the national vote to his political opponent, Lula.
High Court judges said that he knew of a plot which encompassed plans to murder the current president and his vice-presidential running mate, Alckmin, and to arrest and execute the presiding judge - the Supreme Court justice who has been managing Bolsonaro's trial.
The plot was prevented because it failed to get the endorsement of the armed forces officials. Lula was inaugurated without issue on January 1st, 2023.
But a week later, on the eighth of January, numerous his followers invaded and destroyed public facilities in the national capital, Brazil's capital.
The police took action and around approximately 1,500 persons were arrested.
The magistrates found that the rioters had been encouraged by him whose strategy, they said, was for the country's army to intervene, restore order and bring him back to power.
At the moment, the legal team called the over 27-year sentence "absurdly excessive.
He was also banned from campaigning for office until the year 2060 - eight years later after the conclusion of his imprisonment.
The one-time head of state called the court case a political persecution and said it was aimed at blocking him participating in the 2026 presidential election.
