Bolsonaro has been arrested after authorities determined he posed a concrete flight risk while under house arrest.
The ex-president was found guilty of planning a armed takeover in September and given more than a 27-year term in jail, but he continued under home detention pending appeals.
Top Judicial Official Justice Moraes said the move to detain the elderly politician was a precautionary step after recent developments emerged.
This encompassed attempting to break his ankle monitor and a invitation to a public vigil that could facilitate a potential flight.
Legal Document Reveals Escape Concerns
In a filing authorising the custody, Justice Moraes said information from the centre monitoring his home detention suggested the former leader's aim to disable the electronic ankle bracelet to guarantee victory in his escape.
This, it said, would be "facilitated by the confusion caused by the gathering called by his son.
His son, Flávio, who serves as a legislator, called for a meeting of his supporters near Bolsonaro's home to take place on the weekend.
His son wrote on online platforms on the previous day: Will you battle for your homeland, or watch it all from your smartphone there on your couch? I call on you to battle with us."
He said the demonstration would be so followers could seek divine intervention for his health and for the reestablishment of democratic governance in our land."
Embassy Asylum Concerns
Part of the judge's ruling was the potential of the former president's "relocation to foreign missions near the dwelling, considering that the probes revealed a history of planning to ask for protection through a consular facility", a declaration said.
The judicial paperwork underscores that the American diplomatic mission in the national capital, the capital city, is situated around approximately 13 kilometers from his dwelling.
International Reactions
His judicial problems have generated frustration from fellow right-wing populist US President Donald Trump, prompting him to enact a 50% tariff on goods coming from Brazil.
Bolsonaro is being kept in a national police facility in Brasilia and will experience a imprisonment assessment on the following day.
Recent Legal Requests
It was only on last Friday that the ex-leader's attorneys asked the Top Court to permit him to fulfill his full incarceration period under house arrest, with tracking devices.
They also petitioned that he be allowed to leave his home for medical care, saying he demanded ongoing care for lung conditions and other ailments.
Details of Guilty Verdict
Bolsonaro was found guilty of heading a conspiracy aimed at keeping him in power after he was defeated in the 2022 election to his left-wing rival, Lula.
Supreme Court justices said that he had knowledge of a plan which included plans to murder the current president and his running partner, Alckmin, and to arrest and execute the presiding judge - the High Court judge who has been managing his judicial proceedings.
The conspiracy was thwarted because it didn't receive the backing of the military leaders. His successor was inaugurated without issue on the first day of 2023.
But a week later, on 8 January, thousands of his followers attacked and damaged official structures in the federal district, the capital city.
The security forces took action and around 1,500 people were detained.
The judges found that the rioters had been encouraged by him whose strategy, they said, was for the national armed forces to take action, reestablish control and reinstate his authority.
At the time, the legal team called the 27 years and three months sentence unreasonably severe".
He was also prohibited from seeking elected position until 2060 - a decade minus two years after the completion of his term.
The one-time head of state called the court case a targeted investigation" and said it was designed to prevent him participating in the 2026 national vote.
