Bolsonaro has been detained after authorities determined he posed a definite escape threat while under house arrest.
The former head of state was found guilty of orchestrating a military coup in September and given more than a 27-year term in jail, but he remained under house arrest pending legal challenges.
Top Judicial Official Justice Moraes said the move to detain the elderly politician was a preventative measure after recent developments came to light.
This included attempting to break his electronic bracelet and a summons to a supporters' gathering that could facilitate a chance to flee".
Judicial Records Show Flight Fears
In a paperwork permitting the custody, the judge said data from the facility tracking the former president's confinement suggested the former leader's plan to remove the tracking monitor to guarantee victory in his flight.
This, it said, would be assisted by the disorder caused by the protest called by his offspring.
His son, Flávio, who holds office as a senator, called for a gathering of his backers near the former president's residence to take place on Saturday evening.
His son wrote on social media on Friday: "Are you going to fight for your country, or see it all from your phone there on your couch? I invite you to battle with us."
He said the demonstration would be so supporters could "pray for his health and for the return of democracy in our country."
Diplomatic Refuge Fears
Part of the magistrate's ruling was the chance of his move to diplomatic missions near the residence, considering that the probes revealed a background of organizing to ask for protection through a diplomatic representation", a announcement said.
The court filing emphasizes that the US embassy in the federal district, the capital city, is located around approximately 13 kilometers from the former president's residence.
Global Responses
His judicial problems have drawn the ire of fellow right-wing populist US President Donald Trump, leading him to enact a 50% tariff on imports of Brazilian goods.
Bolsonaro is being kept in a federal law enforcement building in the capital and will experience a detention review on the next day.
Latest Court Petitions
It was only on Friday that the former president's lawyers asked the Top Court to permit him to fulfill his full incarceration period under house arrest, with electronic monitoring.
They also requested that he be allowed to leave his home for medical care, saying he demanded ongoing care for lung conditions and other health problems.
Context of Sentencing
The former president was found guilty of leading a scheme aimed at maintaining his control after he failed to win the presidential race to his ideological adversary, President Lula.
High Court judges said that he was aware of a plan which included plans to murder the current president and his vice-presidential running mate, his vice-presidential candidate, and to arrest and execute the presiding judge - the High Court judge who has been presiding over the former president's case.
The plot was prevented because it didn't receive the endorsement of the army and air force commanders. His successor was sworn in without problem on 1 January 2023.
But a following week, on the eighth of January, thousands of his backers invaded and destroyed official structures in the national capital, Brazil's capital.
The police intervened and around 1,500 people were detained.
The justices found that the protesters had been provoked by the former president whose scheme, they said, was for the national armed forces to intervene, reestablish control and return him to office.
At the period, the legal team called the 27 years and three months sentence extremely harsh.
He was also barred from running for public office until twenty-sixty - eight years later after the conclusion of his imprisonment.
The one-time head of state called the legal proceedings a political persecution and said it was aimed at blocking him competing in the next presidential race.
