Jair Bolsonaro has been taken into custody after authorities found he posed a concrete flight risk while under home confinement.
The one-time leader was convicted of planning a armed takeover in the ninth month and sentenced more than over two decades in incarceration, but he remained under house arrest pending legal challenges.
Top Judicial Official Alexandre de Moraes said the move to detain the septuagenarian politician was a precautionary step after "new facts" were revealed.
This encompassed seeking to disable his tracking device and a summons to a demonstration that could enable a chance to flee".
Judicial Records Show Escape Risks
In a paperwork permitting the detention, Justice Moraes said intelligence from the unit overseeing Bolsonaro's house arrest suggested the former leader's plan to remove the surveillance device to ensure success in his escape.
This, it said, would be "facilitated by the confusion caused by the protest called by his child.
His son, his son Flávio, who works as a legislator, called for a gathering of his backers near the former president's residence to take place on Saturday night.
The senator wrote on digital networks on last Friday: "Are you going to fight for your nation, or observe everything from your phone there on your sofa? I urge you to battle with us."
He said the vigil would be so followers could seek divine intervention for his well-being and for the reestablishment of democratic governance in our land."
Foreign Shelter Risks
Part of the judge's determination was the possibility of his "relocation to diplomatic missions near the home, considering that the probes revealed a history of organizing to ask for protection through a embassy office", a statement said.
The court filing underscores that the United States embassy in the capital, Brasilia, is situated around approximately 13 kilometers from the former president's residence.
Worldwide Consequences
His judicial problems have drawn the ire of fellow conservative nationalist American leader Donald Trump, prompting him to impose a half-rate duty on Brazilian product imports.
The former president is being held in a federal law enforcement building in Brasilia and will have a imprisonment assessment on the following day.
Recent Judicial Appeals
It was only on Friday that the former president's lawyers asked the Supreme Court to authorize him to complete his entire prison term under home confinement, with digital surveillance.
They also requested that Bolsonaro be permitted to leave his home for medical care, saying he required regular treatment for lung conditions and other health problems.
Details of Guilty Verdict
The former president was convicted of heading a scheme aimed at retaining his authority after he was defeated in the 2022 election to his political opponent, Lula.
High Court judges said that he knew of a plot which included plans to kill his opponent and his running partner, Geraldo Alckmin, and to imprison and murder Alexandre de Moraes - the High Court judge who has been overseeing Bolsonaro's trial.
The conspiracy was prevented because it didn't receive the support of the military leaders. His successor was sworn in without incident on the first day of 2023.
But a following week, on the eighth of January, numerous his backers stormed and vandalised government buildings in the capital, the capital city.
The police stepped in and around approximately 1,500 persons were detained.
The magistrates found that the demonstrators had been provoked by the former president whose plan, they said, was for the national armed forces to step in, restore order and reinstate his authority.
At the time, Bolsonaro's lawyers called the decades-long sentence unreasonably severe".
He was also prohibited from running for public office until twenty-sixty - a decade minus two years after the end of his sentence.
The former president called the court case a targeted investigation" and said it was designed to prevent him running in the 2026 national vote.