Bolsonaro has been arrested after authorities determined he posed a serious risk of fleeing while under home confinement.
The former head of state was found guilty of orchestrating a armed takeover in September and given more than over two decades in incarceration, but he remained under confinement pending court reviews.
High Court Judge Justice Moraes said the action to imprison the elderly politician was a safety action after fresh information came to light.
This included seeking to disable his electronic bracelet and a invitation to a demonstration that could enable a possible escape.
Legal Document Reveals Flight Fears
In a filing authorising the custody, the judge said data from the centre monitoring the former president's confinement suggested the one-time head of state's "intention to break the tracking monitor to secure accomplishment in his escape.
This, it said, would be "facilitated by the disorder caused by the gathering called by his child.
His son, Flávio, who works as a legislator, called for a meeting of his supporters near the former president's residence to take place on Saturday evening.
Flávio Bolsonaro wrote on social media on last Friday: Will you battle for your homeland, or watch it all from your mobile device there on your sofa? I invite you to fight with us."
He said the gathering would be so followers could offer prayers for his physical condition and for the restoration of democratic rule in our nation."
Diplomatic Refuge Fears
Part of the judge's determination was the potential of his transfer to diplomatic missions near the dwelling, considering that the inquiries revealed a background of organizing to ask for protection through a consular facility", a statement said.
The legal document highlights that the US embassy in the federal district, Brazil's capital, is situated around approximately 13 kilometers from the former president's residence.
International Reactions
Bolsonaro's legal woes have provoked anger from fellow right-wing populist US President Donald Trump, leading him to enact a fifty percent tax on Brazilian product imports.
He is being kept in a national police facility in the capital and will have a imprisonment assessment on the following day.
Latest Court Petitions
It was only on Friday that the former president's lawyers asked the Top Court to allow him to complete his entire prison term under house arrest, with electronic monitoring.
They also requested that he be permitted to leave his home for medical care, saying he needed frequent medical attention for respiratory ailments and other ailments.
Details of Guilty Verdict
He was convicted of heading a scheme aimed at retaining his authority after he was defeated in the presidential race to his ideological adversary, Lula.
Supreme Court justices said that he was aware of a plot which included plans to assassinate his opponent and his running partner, Geraldo Alckmin, and to detain and kill the presiding judge - the High Court judge who has been managing his judicial proceedings.
The scheme was stopped because it couldn't obtain the endorsement of the military leaders. His successor was inaugurated without problem on January 1st, 2023.
But a seven days after, on 8 January, numerous his followers stormed and vandalised official structures in the capital, Brasília.
The security forces took action and around 1,500 people were arrested.
The justices found that the rioters had been incited by him whose scheme, they said, was for the country's army to step in, restore order and return him to office.
At the period, Bolsonaro's lawyers called the 27 years and three months sentence extremely harsh.
He was also prohibited from seeking elected position until twenty-sixty - eight years later after the conclusion of his imprisonment.
The ex-leader called the court case a "witch hunt and said it was intended to stop him running in the 2026 presidential election.
