Bolsonaro has been taken into custody after authorities found he posed a definite escape threat while under home confinement.
The one-time leader was sentenced of planning a armed takeover in last fall and handed more than a 27-year term in incarceration, but he was staying under confinement pending appeals.
High Court Judge Alexandre de Moraes said the move to detain the elderly politician was a preventative measure after recent developments came to light.
This encompassed trying to remove his electronic bracelet and a call for a public vigil that could "allow for a possible escape.
Legal Document Reveals Escape Risks
In a document approving the detention, the judge said intelligence from the centre monitoring Bolsonaro's house arrest suggested the ex-president's "intention to break the electronic ankle bracelet to ensure success in his escape.
This, it said, would be "facilitated by the disorder caused by the gathering called by his child.
His son, Flávio Bolsonaro, who holds office as a senator, called for a assembly of his followers near the former president's residence to take place on Saturday evening.
The senator wrote on digital networks on Friday: "Are you going to fight for your nation, or see it all from your mobile device there on your sofa? I call on you to struggle with us."
He said the demonstration would be so backers could "pray for his health and for the reestablishment of democratic governance in our country."
Embassy Asylum Concerns
Part of Justice Moraes's decision was the possibility of Bolsonaro's transfer to foreign missions near the dwelling, considering that the investigations revealed a history of planning to request asylum through a embassy office", a declaration said.
The court filing underscores that the American diplomatic mission in the national capital, the capital city, is situated around 8 miles from Bolsonaro's home.
Worldwide Consequences
His judicial problems have generated frustration from fellow populist conservative United States President Donald Trump, causing him to enact a half-rate duty on imports of Brazilian goods.
He is being held in a national police facility in Brasilia and will undergo a custody hearing on the next day.
Recent Legal Requests
It was only on Friday that the his legal team asked the High Court to authorize him to complete his entire prison term under domestic detention, with digital surveillance.
They also petitioned that he be allowed to exit his dwelling for medical care, saying he required frequent medical attention for respiratory ailments and other illnesses.
Background on Conviction
Bolsonaro was determined responsible of leading a scheme aimed at retaining his authority after he lost the 2022 election to his ideological adversary, President Lula.
Supreme Court justices said that he was aware of a plan which involved plans to assassinate the current president and his vice-presidential running mate, Alckmin, and to imprison and murder Justice Moraes - the top judicial official who has been managing his judicial proceedings.
The conspiracy was prevented because it didn't receive the endorsement of the armed forces officials. Lula was sworn in without incident on the first day of 2023.
But a week later, on 8 January, many his backers invaded and destroyed official structures in the capital, Brasília.
The police stepped in and around fifteen hundred individuals were arrested.
The judges found that the protesters had been provoked by him whose scheme, they said, was for the Brazilian military to intervene, bring back stability and return him to office.
At the period, Bolsonaro's lawyers called the 27 years and three months sentence extremely harsh.
He was also banned from running for public office until twenty-sixty - eight years later after the conclusion of his imprisonment.
The former president called the trial a political persecution and said it was aimed at blocking him participating in the 2026 national vote.
