The former Brazilian leader has been arrested after authorities found he posed a serious risk of fleeing while under house arrest.
The ex-president was found guilty of planning a armed takeover in September and handed more than 27 years in jail, but he continued under confinement pending legal challenges.
Brazilian Supreme Court Justice the presiding justice said the action to imprison the elderly politician was a preventative measure after fresh information were revealed.
This involved attempting to break his ankle monitor and a invitation to a supporters' gathering that could enable a potential flight.
Legal Document Reveals Flight Fears
In a filing authorising the arrest, the judge said information from the facility tracking Bolsonaro's house arrest suggested the former leader's aim to disable the tracking monitor to secure accomplishment in his getaway".
This, it said, would be "facilitated by the chaos caused by the gathering called by his son.
His son, his son Flávio, who works as a congressional representative, called for a gathering of his followers near Bolsonaro's home to take place on Saturday night.
His son wrote on online platforms on Friday: Do you plan to struggle for your homeland, or watch it all from your smartphone there on your settee? I urge you to struggle with us."
He said the demonstration would be so supporters could "pray for his well-being and for the return of democracy in our nation."
Embassy Asylum Concerns
Part of the magistrate's determination was the possibility of the former president's "relocation to embassies near the home, considering that the probes revealed a history of planning to seek refuge through a embassy office", a statement said.
The court filing emphasizes that the American diplomatic mission in the national capital, Brazil's capital, is located around 8 miles from the former president's residence.
Worldwide Consequences
The former president's legal troubles have generated frustration from fellow populist conservative American leader Trump, prompting him to implement a half-rate duty on imports of Brazilian goods.
Bolsonaro is being held in a national police facility in the capital and will experience a imprisonment assessment on Sunday.
Recent Judicial Appeals
It was only on Friday that the his legal team asked the Top Court to authorize him to serve his whole jail sentence under domestic detention, with electronic monitoring.
They also petitioned that Bolsonaro be permitted to leave his home for medical treatment, saying he needed ongoing care for pulmonary infections and other illnesses.
Details of Guilty Verdict
Bolsonaro was convicted of heading a scheme aimed at retaining his authority after he lost the 2022 election to his political opponent, President Lula.
Supreme Court justices said that he knew of a scheme which involved plans to assassinate his opponent and his vice-presidential running mate, Geraldo Alckmin, and to detain and kill Justice Moraes - the High Court judge who has been presiding over his judicial proceedings.
The plot was prevented because it couldn't obtain the endorsement of the armed forces officials. His successor was inaugurated without issue on 1 January 2023.
But a seven days after, on the eighth of January, many his backers stormed and vandalised official structures in the federal district, the capital city.
The security forces stepped in and around approximately 1,500 persons were arrested.
The judges found that the rioters had been incited by the former president whose strategy, they said, was for the national armed forces to step in, bring back stability and return him to office.
At the moment, his attorneys called the decades-long sentence unreasonably severe".
He was also banned from running for public office until twenty-sixty - eight years after the completion of his term.
The ex-leader called the legal proceedings a "witch hunt and said it was aimed at blocking him participating in the 2026 national vote.