Jair Bolsonaro has been detained after authorities determined he posed a serious risk of fleeing while under home confinement.
The ex-president was sentenced of orchestrating a military coup in the ninth month and given more than over two decades in jail, but he continued under house arrest pending appeals.
Brazilian Supreme Court Justice the presiding justice said the action to imprison the septuagenarian politician was a preventative measure after "new facts" came to light.
This included trying to remove his tracking device and a summons to a supporters' gathering that could enable a possible escape.
Judicial Records Show Escape Risks
In a filing authorising the detention, the judge said information from the unit overseeing the former president's confinement suggested the former leader's plan to remove the surveillance device to secure accomplishment in his flight.
This, it said, would be assisted by the confusion caused by the demonstration called by his offspring.
His child, his son Flávio, who serves as a legislator, called for a meeting of his followers near Bolsonaro's home to take place on the weekend.
The senator wrote on online platforms on the previous day: Do you plan to struggle for your nation, or see it all from your phone there on your settee? I invite you to struggle with us."
He said the gathering would be so supporters could seek divine intervention for his health and for the restoration of democratic rule in our country."
Foreign Shelter Risks
Part of the judge's ruling was the possibility of his move to embassies near the dwelling, considering that the inquiries revealed a history of planning to request asylum through a embassy office", a declaration said.
The judicial paperwork emphasizes that the American diplomatic mission in the federal district, Brazil's capital, is situated around 13km from Bolsonaro's home.
International Reactions
Bolsonaro's legal woes have provoked anger from fellow right-wing populist US President Donald Trump, causing him to enact a 50% tariff on goods coming from Brazil.
The former president is being held in a federal law enforcement building in Brazil's capital city and will have a custody hearing on the following day.
Latest Court Petitions
It was only on last Friday that the former president's lawyers asked the Supreme Court to authorize him to fulfill his full incarceration period under house arrest, with tracking devices.
They also requested that Bolsonaro be permitted to depart his residence for medical care, saying he required regular treatment for pulmonary infections and other ailments.
Details of Guilty Verdict
The former president was found guilty of heading a conspiracy aimed at keeping him in power after he failed to win the national vote to his left-wing rival, President Lula.
High Court judges said that he knew of a scheme which encompassed plans to assassinate the current president and his vice-presidential running mate, Alckmin, and to imprison and murder Justice Moraes - the High Court judge who has been overseeing the former president's case.
The scheme was prevented because it couldn't obtain the backing of the army and air force commanders. Lula was inaugurated without incident on 1 January 2023.
But a following week, on 8 January, numerous his backers attacked and damaged government buildings in the national capital, the capital city.
The law enforcement intervened and around fifteen hundred individuals were detained.
The magistrates found that the demonstrators had been incited by Bolsonaro whose plan, they said, was for the Brazilian military to step in, reestablish control and bring him back to power.
At the time, his attorneys called the decades-long sentence unreasonably severe".
He was also banned from running for public office until 2060 - eight years after the conclusion of his imprisonment.
The one-time head of state called the court case a "witch hunt and said it was aimed at blocking him running in the 2026 presidential election.
