Bolsonaro has been arrested after authorities found he posed a definite escape threat while under home confinement.
The one-time leader was convicted of plotting a government overthrow in last fall and sentenced more than a 27-year term in jail, but he continued under house arrest pending court reviews.
Brazilian Supreme Court Justice the presiding justice said the decision to arrest the 70-year-old politician was a precautionary step after "new facts" came to light.
This involved trying to remove his ankle monitor and a invitation to a demonstration that could "allow for a chance to flee".
Court Filing Details Flight Fears
In a filing authorising the custody, the judge said intelligence from the centre monitoring the former president's confinement suggested the ex-president's "intention to break the electronic ankle bracelet to secure accomplishment in his escape.
This, it said, would be made easier by the chaos caused by the demonstration called by his child.
His child, Flávio Bolsonaro, who serves as a senator, called for a gathering of his followers near the former president's residence to take place on Saturday evening.
The senator wrote on digital networks on Friday: Will you battle for your homeland, or see it all from your smartphone there on your sofa? I urge you to battle with us."
He said the gathering would be so supporters could offer prayers for his well-being and for the return of democracy in our nation."
Diplomatic Refuge Fears
Part of the magistrate's ruling was the potential of Bolsonaro's transfer to foreign missions near the residence, considering that the inquiries revealed a history of planning to seek refuge through a consular facility", a announcement said.
The judicial paperwork underscores that the US embassy in the national capital, Brazil's capital, is located around 8 miles from his dwelling.
Worldwide Consequences
Bolsonaro's legal woes have drawn the ire of fellow right-wing populist US President President Trump, prompting him to impose a 50% tariff on imports of Brazilian goods.
The former president is being kept in a national police facility in Brazil's capital city and will experience a imprisonment assessment on Sunday.
Latest Court Petitions
It was only on last Friday that the his legal team asked the High Court to allow him to complete his entire prison term under domestic detention, with electronic monitoring.
They also requested that the former president be permitted to exit his dwelling for healthcare, saying he required ongoing care for lung conditions and other health problems.
Context of Sentencing
The former president was found guilty of orchestrating a scheme aimed at retaining his authority after he was defeated in the 2022 election to his left-wing rival, Luiz Inácio Lula da Silva.
High Court judges said that he had knowledge of a scheme which involved plans to assassinate Lula and his vice-presidential running mate, Geraldo Alckmin, and to arrest and execute the presiding judge - the Supreme Court justice who has been managing the former president's case.
The plot was prevented because it didn't receive the backing of the armed forces officials. Lula was took office without issue on January 1st, 2023.
But a following week, on January 8th, numerous his backers attacked and damaged official structures in the federal district, Brazil's capital.
The police stepped in and around approximately 1,500 persons were detained.
The judges found that the rioters had been incited by the former president whose scheme, they said, was for the national armed forces to step in, restore order and return him to office.
At the moment, the legal team called the over 27-year sentence extremely harsh.
He was also barred from seeking elected position until 2060 - a decade minus two years after the end of his sentence.
The one-time head of state called the legal proceedings a political persecution and said it was intended to stop him participating in the next presidential race.