Jair Bolsonaro has been arrested after authorities concluded he posed a concrete flight risk while under house arrest.
The former head of state was convicted of planning a armed takeover in September and sentenced more than over two decades in prison, but he continued under confinement pending legal challenges.
Top Judicial Official Justice Moraes said the action to imprison the 70-year-old politician was a preventative measure after recent developments emerged.
This encompassed trying to remove his ankle monitor and a invitation to a public vigil that could "allow for a possible escape.
Court Filing Details Escape Risks
In a paperwork permitting the arrest, the judge said intelligence from the centre monitoring his home detention suggested the one-time head of state's "intention to break the tracking monitor to ensure success in his getaway".
This, it said, would be assisted by the chaos caused by the demonstration called by his son.
His son, Flávio, who serves as a legislator, called for a gathering of his supporters near the former president's residence to take place on Saturday evening.
His son wrote on online platforms on Friday: "Are you going to fight for your homeland, or see it all from your phone there on your couch? I urge you to fight with us."
He said the demonstration would be so supporters could offer prayers for his physical condition and for the reestablishment of democratic governance in our nation."
Foreign Shelter Risks
Part of the magistrate's determination was the possibility of the former president's "relocation to foreign missions near the dwelling, considering that the probes revealed a record of organizing to ask for protection through a diplomatic representation", a declaration said.
The judicial paperwork emphasizes that the United States embassy in the national capital, Brazil's capital, is located around approximately 13 kilometers from his dwelling.
Global Responses
His judicial problems have generated frustration from fellow right-wing populist American leader Donald Trump, leading him to implement a half-rate duty on Brazilian product imports.
He is being kept in a Federal Police station in Brasilia and will have a detention review on the next day.
Recent Judicial Appeals
It was only on Friday that the former president's lawyers asked the Supreme Court to allow him to fulfill his full incarceration period under house arrest, with electronic monitoring.
They also petitioned that he be allowed to depart his residence for medical treatment, saying he demanded frequent medical attention for respiratory ailments and other ailments.
Background on Conviction
Bolsonaro was found guilty of leading a scheme aimed at maintaining his control after he lost the 2022 election to his political opponent, President Lula.
Supreme Court justices said that he was aware of a plot which included plans to kill his opponent and his vice-presidential running mate, Geraldo Alckmin, and to imprison and murder Alexandre de Moraes - the top judicial official who has been overseeing Bolsonaro's trial.
The conspiracy was thwarted because it couldn't obtain the endorsement of the armed forces officials. The current president was inaugurated without incident on the first day of 2023.
But a seven days after, on the eighth of January, numerous Bolsonaro supporters invaded and destroyed official structures in the federal district, Brasília.
The police stepped in and around approximately 1,500 persons were detained.
The judges found that the rioters had been encouraged by him whose strategy, they said, was for the Brazilian military to take action, bring back stability and reinstate his authority.
At the period, Bolsonaro's lawyers called the 27 years and three months sentence extremely harsh.
He was also prohibited from running for public office until twenty-sixty - eight years after the conclusion of his imprisonment.
The former president called the legal proceedings a political persecution and said it was intended to stop him running in the next presidential race.
