Jair Bolsonaro has been taken into custody after authorities determined he posed a definite escape threat while under house arrest.
The ex-president was found guilty of orchestrating a armed takeover in September and sentenced more than a 27-year term in prison, but he was staying under house arrest pending appeals.
Brazilian Supreme Court Justice the presiding justice said the action to imprison the 70-year-old politician was a precautionary step after fresh information came to light.
This encompassed trying to remove his ankle monitor and a invitation to a supporters' gathering that could "allow for a potential flight.
Judicial Records Show Escape Risks
In a filing authorising the custody, the magistrate said information from the unit overseeing his home detention suggested the former leader's "intention to break the surveillance device to ensure success in his flight.
This, it said, would be "facilitated by the disorder caused by the protest called by his offspring.
His offspring, Flávio, who holds office as a legislator, called for a assembly of his backers near his father's house to take place on Saturday night.
His son wrote on digital networks on Friday: Will you battle for your country, or see it all from your mobile device there on your couch? I urge you to battle with us."
He said the demonstration would be so supporters could "pray for his physical condition and for the restoration of democratic rule in our land."
Diplomatic Refuge Fears
Part of the magistrate's determination was the chance of the former president's "relocation to diplomatic missions near the dwelling, considering that the probes revealed a background of arranging to ask for protection through a diplomatic representation", a declaration said.
The judicial paperwork highlights that the American diplomatic mission in the capital, Brazil's capital, is positioned around approximately 13 kilometers from Bolsonaro's home.
International Reactions
Bolsonaro's legal woes have provoked anger from fellow populist conservative US President President Trump, prompting him to enact a 50% tariff on goods coming from Brazil.
The former president is being held in a federal law enforcement building in the capital and will undergo a detention review on Sunday.
Latest Court Petitions
It was only on last Friday that the former president's lawyers asked the Top Court to permit him to fulfill his full incarceration period under house arrest, with tracking devices.
They also petitioned that Bolsonaro be authorized to exit his dwelling for medical care, saying he required frequent medical attention for lung conditions and other health problems.
Details of Guilty Verdict
Bolsonaro was found guilty of heading a plot aimed at retaining his authority after he was defeated in the national vote to his ideological adversary, President Lula.
Supreme Court justices said that he had knowledge of a plan which encompassed plans to kill his opponent and his running partner, Geraldo Alckmin, and to arrest and execute the presiding judge - the top judicial official who has been managing the former president's case.
The plot was stopped because it didn't receive the endorsement of the armed forces officials. Lula was sworn in without incident on 1 January 2023.
But a seven days after, on the eighth of January, thousands of his backers stormed and vandalised official structures in the federal district, Brazil's capital.
The law enforcement stepped in and around approximately 1,500 persons were detained.
The judges found that the protesters had been encouraged by him whose strategy, they said, was for the national armed forces to intervene, reestablish control and bring him back to power.
At the moment, his attorneys called the decades-long sentence extremely harsh.
He was also prohibited from campaigning for office until 2060 - eight years later after the conclusion of his imprisonment.
The one-time head of state called the trial a targeted investigation" and said it was intended to stop him competing in the 2026 presidential election.
