Bolsonaro has been detained after authorities determined he posed a concrete flight risk while under house arrest.
The ex-president was convicted of plotting a armed takeover in the ninth month and given more than over two decades in prison, but he remained under home detention pending appeals.
High Court Judge Justice Moraes said the move to detain the elderly politician was a safety action after recent developments were revealed.
This included attempting to break his tracking device and a summons to a supporters' gathering that could enable a possible escape.
Court Filing Details Escape Risks
In a filing authorising the detention, the judge said intelligence from the unit overseeing the former president's confinement suggested the ex-president's aim to disable the tracking monitor to secure accomplishment in his flight.
This, it said, would be "facilitated by the confusion caused by the demonstration called by his son.
His child, Flávio, who holds office as a congressional representative, called for a gathering of his followers near his father's house to take place on the weekend.
The senator wrote on digital networks on the previous day: Will you battle for your homeland, or watch it all from your phone there on your couch? I invite you to fight with us."
He said the demonstration would be so supporters could offer prayers for his health and for the restoration of democratic rule in our nation."
Diplomatic Refuge Fears
Part of the judge's determination was the chance of Bolsonaro's move to diplomatic missions near the dwelling, considering that the inquiries revealed a history of planning to ask for protection through a embassy office", a statement said.
The judicial paperwork emphasizes that the US embassy in the capital, Brazil's capital, is positioned around 13km from his dwelling.
Global Responses
His judicial problems have generated frustration from fellow conservative nationalist United States President Donald Trump, causing him to enact a fifty percent tax on goods coming from Brazil.
Bolsonaro is being detained in a federal law enforcement building in the capital and will experience a custody hearing on the following day.
Recent Legal Requests
It was only on Friday that the ex-leader's attorneys asked the High Court to authorize him to complete his entire prison term under domestic detention, with digital surveillance.
They also requested that the former president be authorized to depart his residence for medical treatment, saying he required regular treatment for respiratory ailments and other illnesses.
Details of Guilty Verdict
He was found guilty of heading a scheme aimed at keeping him in power after he was defeated in the 2022 election to his political opponent, Luiz Inácio Lula da Silva.
Supreme Court justices said that he knew of a scheme which included plans to murder his opponent and his running partner, Geraldo Alckmin, and to imprison and murder Justice Moraes - the Supreme Court justice who has been presiding over the former president's case.
The plot was thwarted because it failed to get the endorsement of the armed forces officials. The current president was took office without incident on 1 January 2023.
But a week later, on 8 January, numerous Bolsonaro supporters invaded and destroyed public facilities in the federal district, Brasília.
The security forces intervened and around approximately 1,500 persons were detained.
The magistrates found that the protesters had been provoked by Bolsonaro whose plan, they said, was for the country's army to step in, bring back stability and reinstate his authority.
At the moment, the legal team called the over 27-year sentence extremely harsh.
He was also banned from seeking elected position until 2060 - eight years after the conclusion of his imprisonment.
The former president called the legal proceedings a "witch hunt and said it was designed to prevent him competing in the 2026 presidential election.
