Bolsonaro has been arrested after authorities concluded he posed a definite escape threat while under house arrest.
The ex-president was convicted of orchestrating a government overthrow in the ninth month and handed more than a 27-year term in incarceration, but he remained under house arrest pending court reviews.
Brazilian Supreme Court Justice the presiding justice said the move to detain the elderly politician was a precautionary step after "new facts" came to light.
This included seeking to disable his electronic bracelet and a invitation to a supporters' gathering that could facilitate a potential flight.
Judicial Records Show Flight Fears
In a paperwork permitting the detention, the judge said information from the facility tracking Bolsonaro's house arrest suggested the ex-president's "intention to break the tracking monitor to guarantee victory in his flight.
This, it said, would be made easier by the disorder caused by the gathering called by his offspring.
His son, Flávio Bolsonaro, who works as a senator, called for a meeting of his supporters near the former president's residence to take place on the weekend.
Flávio Bolsonaro wrote on online platforms on last Friday: Will you battle for your country, or watch it all from your phone there on your couch? I invite you to fight with us."
He said the demonstration would be so followers could seek divine intervention for his well-being and for the return of democracy in our country."
Diplomatic Refuge Fears
Part of the judge's ruling was the chance of his move to foreign missions near the dwelling, considering that the investigations revealed a history of arranging to seek refuge through a consular facility", a declaration said.
The judicial paperwork underscores that the US embassy in the capital, the capital city, is positioned around approximately 13 kilometers from his dwelling.
Worldwide Consequences
Bolsonaro's legal woes have drawn the ire of fellow conservative nationalist American leader Donald Trump, causing him to implement a half-rate duty on goods coming from Brazil.
He is being kept in a federal law enforcement building in the capital and will have a imprisonment assessment on Sunday.
Recent Judicial Appeals
It was only on the previous day that the former president's lawyers asked the High Court to authorize him to fulfill his full incarceration period under house arrest, with tracking devices.
They also asked that he be allowed to depart his residence for healthcare, saying he demanded regular treatment for pulmonary infections and other illnesses.
Context of Sentencing
The former president was convicted of orchestrating a conspiracy aimed at retaining his authority after he failed to win the national vote to his ideological adversary, Lula.
Supreme Court justices said that he had knowledge of a scheme which included plans to murder Lula and his vice-presidential running mate, his vice-presidential candidate, and to detain and kill Justice Moraes - the High Court judge who has been overseeing Bolsonaro's trial.
The plot was prevented because it failed to get the support of the army and air force commanders. Lula was inaugurated without incident on 1 January 2023.
But a following week, on the eighth of January, many his backers stormed and vandalised government buildings in the national capital, the capital city.
The law enforcement intervened and around approximately 1,500 persons were taken into custody.
The judges found that the rioters had been provoked by Bolsonaro whose strategy, they said, was for the Brazilian military to step in, reestablish control and bring him back to power.
At the moment, Bolsonaro's lawyers called the over 27-year sentence unreasonably severe".
He was also barred from campaigning for office until the year 2060 - eight years after the completion of his term.
The former president called the legal proceedings a targeted investigation" and said it was designed to prevent him participating in the next presidential race.
