Bolsonaro has been taken into custody after authorities determined he posed a concrete flight risk while under house arrest.
The former head of state was sentenced of plotting a government overthrow in last fall and sentenced more than over two decades in incarceration, but he was staying under home detention pending appeals.
Top Judicial Official the presiding justice said the decision to arrest the elderly politician was a preventative measure after fresh information were revealed.
This involved seeking to disable his ankle monitor and a invitation to a supporters' gathering that could "allow for a possible escape.
Judicial Records Show Flight Fears
In a paperwork permitting the arrest, the magistrate said data from the unit overseeing the former president's confinement suggested the former leader's aim to disable the surveillance device to guarantee victory in his getaway".
This, it said, would be "facilitated by the confusion caused by the gathering called by his offspring.
His son, Flávio, who works as a congressional representative, called for a gathering of his followers near the former president's residence to take place on Saturday evening.
His son wrote on digital networks on Friday: "Are you going to fight for your nation, or observe everything from your smartphone there on your sofa? I call on you to battle with us."
He said the demonstration would be so followers could offer prayers for his physical condition and for the restoration of democratic rule in our nation."
Foreign Shelter Risks
Part of Justice Moraes's decision was the chance of the former president's transfer to embassies near the home, considering that the probes revealed a record of arranging to request asylum through a diplomatic representation", a declaration said.
The judicial paperwork emphasizes that the United States embassy in the capital, Brazil's capital, is located around approximately 13 kilometers from Bolsonaro's home.
International Reactions
The former president's legal troubles have provoked anger from fellow right-wing populist US President Trump, leading him to enact a fifty percent tax on Brazilian product imports.
Bolsonaro is being detained in a national police facility in the capital and will undergo a detention review on the following day.
Latest Court Petitions
It was only on last Friday that the his legal team asked the High Court to authorize him to serve his whole jail sentence under home confinement, with digital surveillance.
They also asked that he be allowed to leave his home for healthcare, saying he required ongoing care for respiratory ailments and other health problems.
Background on Conviction
He was determined responsible of orchestrating a conspiracy aimed at retaining his authority after he was defeated in the national vote to his left-wing rival, Lula.
High Court judges said that he was aware of a scheme which encompassed plans to kill Lula and his running partner, Alckmin, and to arrest and execute the presiding judge - the Supreme Court justice who has been presiding over the former president's case.
The scheme was prevented because it didn't receive the backing of the armed forces officials. Lula was inaugurated without problem on 1 January 2023.
But a week later, on January 8th, numerous his followers stormed and vandalised government buildings in the national capital, Brazil's capital.
The law enforcement stepped in and around 1,500 people were arrested.
The justices found that the rioters had been encouraged by him whose scheme, they said, was for the national armed forces to intervene, reestablish control and bring him back to power.
At the period, the legal team called the 27 years and three months sentence unreasonably severe".
He was also prohibited from campaigning for office until twenty-sixty - eight years after the end of his sentence.
The former president called the legal proceedings a political persecution and said it was intended to stop him running in the 2026 presidential election.
