The former Brazilian leader has been detained after authorities determined he posed a serious risk of fleeing while under home confinement.
The ex-president was convicted of plotting a military coup in last fall and handed more than a 27-year term in jail, but he was staying under house arrest pending legal challenges.
High Court Judge the presiding justice said the move to detain the 70-year-old politician was a safety action after "new facts" emerged.
This encompassed attempting to break his electronic bracelet and a call for a supporters' gathering that could enable a chance to flee".
Court Filing Details Escape Risks
In a paperwork permitting the custody, Justice Moraes said intelligence from the centre monitoring his home detention suggested the ex-president's "intention to break the tracking monitor to secure accomplishment in his flight.
This, it said, would be "facilitated by the chaos caused by the gathering called by his child.
His child, his son Flávio, who works as a senator, called for a assembly of his backers near his father's house to take place on Saturday night.
Flávio Bolsonaro wrote on digital networks on the previous day: Will you battle for your country, or observe everything from your smartphone there on your sofa? I invite you to battle with us."
He said the demonstration would be so backers could offer prayers for his physical condition and for the return of democracy in our country."
Diplomatic Refuge Fears
Part of Justice Moraes's determination was the potential of the former president's move to diplomatic missions near the residence, considering that the inquiries revealed a record of organizing to request asylum through a consular facility", a declaration said.
The legal document underscores that the US embassy in the capital, the capital city, is positioned around 13km from his dwelling.
International Reactions
Bolsonaro's legal woes have generated frustration from fellow conservative nationalist American leader Donald Trump, leading him to impose a 50% tariff on goods coming from Brazil.
Bolsonaro is being detained in a federal law enforcement building in the capital and will experience a detention review on the following day.
Latest Court Petitions
It was only on last Friday that the ex-leader's attorneys asked the Top Court to authorize him to serve his whole jail sentence under house arrest, with electronic monitoring.
They also requested that Bolsonaro be allowed to leave his home for medical care, saying he needed frequent medical attention for pulmonary infections and other health problems.
Background on Conviction
Bolsonaro was convicted of orchestrating a scheme aimed at retaining his authority after he lost the national vote to his left-wing rival, Luiz Inácio Lula da Silva.
High Court judges said that he was aware of a plan which encompassed plans to kill his opponent and his vice-presidential running mate, Geraldo Alckmin, and to arrest and execute Justice Moraes - the Supreme Court justice who has been presiding over his judicial proceedings.
The scheme was thwarted because it couldn't obtain the endorsement of the army and air force commanders. Lula was inaugurated without incident on the first day of 2023.
But a week later, on 8 January, numerous his followers attacked and damaged public facilities in the federal district, the capital city.
The police stepped in and around 1,500 people were taken into custody.
The justices found that the demonstrators had been provoked by him whose strategy, they said, was for the country's army to take action, bring back stability and reinstate his authority.
At the time, the legal team called the over 27-year sentence "absurdly excessive.
He was also prohibited from running for public office until the year 2060 - eight years later after the conclusion of his imprisonment.
The ex-leader called the trial a "witch hunt and said it was aimed at blocking him competing in the next presidential race.