Bolsonaro has been taken into custody after authorities concluded he posed a serious risk of fleeing while under house arrest.
The former head of state was found guilty of planning a government overthrow in the ninth month and given more than a 27-year term in jail, but he remained under confinement pending appeals.
Brazilian Supreme Court Justice the presiding justice said the decision to arrest the elderly politician was a preventative measure after "new facts" emerged.
This encompassed seeking to disable his ankle monitor and a summons to a demonstration that could "allow for a possible escape.
Court Filing Details Flight Fears
In a document approving the custody, the magistrate said data from the unit overseeing Bolsonaro's house arrest suggested the ex-president's plan to remove the surveillance device to secure accomplishment in his getaway".
This, it said, would be made easier by the chaos caused by the gathering called by his son.
His son, Flávio Bolsonaro, who serves as a legislator, called for a assembly of his backers near Bolsonaro's home to take place on Saturday evening.
Flávio Bolsonaro wrote on social media on last Friday: "Are you going to fight for your nation, or observe everything from your mobile device there on your settee? I urge you to battle with us."
He said the vigil would be so supporters could "pray for his health and for the return of democracy in our country."
Embassy Asylum Concerns
Part of the judge's decision was the potential of his "relocation to foreign missions near the dwelling, considering that the investigations revealed a background of planning to seek refuge through a consular facility", a statement said.
The court filing underscores that the US embassy in the capital, the capital city, is located around 8 miles from his dwelling.
Worldwide Consequences
Bolsonaro's legal woes have generated frustration from fellow populist conservative United States President President Trump, prompting him to impose a 50% tariff on imports of Brazilian goods.
The former president is being kept in a Federal Police station in Brazil's capital city and will undergo a detention review on the next day.
Recent Judicial Appeals
It was only on last Friday that the his legal team asked the Supreme Court to allow him to complete his entire prison term under home confinement, with digital surveillance.
They also petitioned that the former president be allowed to depart his residence for medical treatment, saying he required ongoing care for lung conditions and other ailments.
Background on Conviction
Bolsonaro was determined responsible of leading a conspiracy aimed at retaining his authority after he lost the 2022 election to his left-wing rival, Luiz Inácio Lula da Silva.
Top judicial officials said that he had knowledge of a plan which encompassed plans to assassinate his opponent and his running partner, Geraldo Alckmin, and to detain and kill Justice Moraes - the top judicial official who has been presiding over his judicial proceedings.
The plot was thwarted because it couldn't obtain the backing of the military leaders. The current president was sworn in without issue on the first day of 2023.
But a seven days after, on 8 January, many his followers stormed and vandalised public facilities in the national capital, the capital city.
The police intervened and around 1,500 people were taken into custody.
The magistrates found that the demonstrators had been encouraged by him whose scheme, they said, was for the country's army to step in, restore order and bring him back to power.
At the time, his attorneys called the decades-long sentence unreasonably severe".
He was also banned from campaigning for office until twenty-sixty - eight years after the conclusion of his imprisonment.
The one-time head of state called the trial a targeted investigation" and said it was designed to prevent him participating in the next presidential race.
