Bolsonaro has been arrested after authorities concluded he posed a serious risk of fleeing while under home confinement.
The former head of state was found guilty of planning a military coup in the ninth month and handed more than a 27-year term in incarceration, but he was staying under house arrest pending appeals.
Top Judicial Official Alexandre de Moraes said the move to detain the septuagenarian politician was a preventative measure after recent developments emerged.
This included trying to remove his electronic bracelet and a summons to a public vigil that could "allow for a potential flight.
Legal Document Reveals Flight Fears
In a filing authorising the custody, the judge said data from the centre monitoring Bolsonaro's house arrest suggested the ex-president's plan to remove the surveillance device to secure accomplishment in his escape.
This, it said, would be made easier by the confusion caused by the demonstration called by his child.
His offspring, Flávio, who serves as a senator, called for a meeting of his followers near Bolsonaro's home to take place on the weekend.
Flávio Bolsonaro wrote on digital networks on Friday: Will you battle for your homeland, or observe everything from your phone there on your couch? I invite you to battle with us."
He said the gathering would be so followers could offer prayers for his physical condition and for the return of democracy in our land."
Embassy Asylum Concerns
Part of the magistrate's ruling was the possibility of the former president's move to diplomatic missions near the residence, considering that the inquiries revealed a background of arranging to seek refuge through a embassy office", a announcement said.
The judicial paperwork emphasizes that the American diplomatic mission in the national capital, the capital city, is located around approximately 13 kilometers from his dwelling.
Global Responses
The former president's legal troubles have provoked anger from fellow right-wing populist United States President Donald Trump, causing him to implement a half-rate duty on imports of Brazilian goods.
He is being kept in a Federal Police station in Brasilia and will experience a imprisonment assessment on the next day.
Recent Legal Requests
It was only on Friday that the ex-leader's attorneys asked the Top Court to permit him to serve his whole jail sentence under home confinement, with electronic monitoring.
They also asked that Bolsonaro be authorized to leave his home for medical treatment, saying he demanded regular treatment for pulmonary infections and other ailments.
Details of Guilty Verdict
He was found guilty of orchestrating a conspiracy aimed at keeping him in power after he was defeated in the national vote to his ideological adversary, Luiz Inácio Lula da Silva.
Top judicial officials said that he was aware of a plan which encompassed plans to assassinate Lula and his vice-presidential running mate, Geraldo Alckmin, and to arrest and execute Justice Moraes - the Supreme Court justice who has been overseeing the former president's case.
The conspiracy was prevented because it failed to get the backing of the military leaders. The current president was inaugurated without problem on 1 January 2023.
But a week later, on January 8th, many Bolsonaro supporters attacked and damaged government buildings in the federal district, the capital city.
The police intervened and around 1,500 people were arrested.
The justices found that the protesters had been incited by Bolsonaro whose scheme, they said, was for the national armed forces to intervene, reestablish control and bring him back to power.
At the period, his attorneys called the over 27-year sentence extremely harsh.
He was also banned from running for public office until twenty-sixty - eight years later after the end of his sentence.
The ex-leader called the legal proceedings a "witch hunt and said it was intended to stop him competing in the 2026 presidential election.
