Jair Bolsonaro has been taken into custody after authorities determined he posed a concrete flight risk while under domestic detention.
The one-time leader was sentenced of planning a government overthrow in the ninth month and sentenced more than a 27-year term in jail, but he remained under confinement pending appeals.
Top Judicial Official Justice Moraes said the decision to arrest the septuagenarian politician was a safety action after "new facts" were revealed.
This involved trying to remove his ankle monitor and a invitation to a public vigil that could "allow for a potential flight.
Court Filing Details Flight Fears
In a paperwork permitting the custody, Justice Moraes said data from the centre monitoring Bolsonaro's house arrest suggested the ex-president's aim to disable the tracking monitor to ensure success in his getaway".
This, it said, would be made easier by the disorder caused by the demonstration called by his child.
His son, Flávio Bolsonaro, who holds office as a senator, called for a meeting of his backers near his father's house to take place on the weekend.
The senator wrote on social media on the previous day: Do you plan to struggle for your homeland, or watch it all from your smartphone there on your sofa? I invite you to fight with us."
He said the gathering would be so followers could "pray for his well-being and for the return of democracy in our country."
Foreign Shelter Risks
Part of the judge's decision was the potential of the former president's transfer to embassies near the home, considering that the investigations revealed a history of organizing to seek refuge through a diplomatic representation", a declaration said.
The judicial paperwork underscores that the American diplomatic mission in the capital, Brasilia, is located around 13km from his dwelling.
Worldwide Consequences
The former president's legal troubles have drawn the ire of fellow conservative nationalist United States President Donald Trump, leading him to enact a half-rate duty on Brazilian product imports.
Bolsonaro is being detained in a Federal Police station in the capital and will undergo a detention review on the next day.
Latest Court Petitions
It was only on Friday that the his legal team asked the High Court to authorize him to complete his entire prison term under house arrest, with digital surveillance.
They also asked that the former president be authorized to leave his home for medical treatment, saying he needed regular treatment for respiratory ailments and other ailments.
Background on Conviction
He was convicted of heading a scheme aimed at retaining his authority after he lost the national vote to his left-wing rival, Luiz Inácio Lula da Silva.
Supreme Court justices said that he was aware of a plan which encompassed plans to assassinate Lula and his VP candidate, Geraldo Alckmin, and to detain and kill the presiding judge - the Supreme Court justice who has been presiding over his judicial proceedings.
The plot was thwarted because it didn't receive the backing of the military leaders. His successor was inaugurated without issue on January 1st, 2023.
But a seven days after, on January 8th, numerous his followers invaded and destroyed official structures in the capital, the capital city.
The law enforcement took action and around 1,500 people were detained.
The judges found that the protesters had been provoked by him whose strategy, they said, was for the country's army to intervene, restore order and bring him back to power.
At the time, his attorneys called the decades-long sentence unreasonably severe".
He was also prohibited from campaigning for office until twenty-sixty - a decade minus two years after the completion of his term.
The one-time head of state called the trial a "witch hunt and said it was aimed at blocking him running in the 2026 presidential election.
