The former Brazilian leader has been arrested after authorities determined he posed a concrete flight risk while under home confinement.
The ex-president was convicted of planning a government overthrow in last fall and handed more than a 27-year term in incarceration, but he remained under house arrest pending appeals.
Top Judicial Official the presiding justice said the move to detain the elderly politician was a precautionary step after recent developments were revealed.
This involved seeking to disable his electronic bracelet and a invitation to a public vigil that could facilitate a possible escape.
Court Filing Details Escape Risks
In a filing authorising the custody, the magistrate said intelligence from the facility tracking Bolsonaro's house arrest suggested the one-time head of state's "intention to break the surveillance device to guarantee victory in his getaway".
This, it said, would be made easier by the chaos caused by the protest called by his child.
His offspring, Flávio Bolsonaro, who holds office as a congressional representative, called for a meeting of his followers near his father's house to take place on Saturday night.
The senator wrote on online platforms on the previous day: Will you battle for your country, or see it all from your phone there on your settee? I invite you to fight with us."
He said the vigil would be so followers could "pray for his health and for the restoration of democratic rule in our country."
Foreign Shelter Risks
Part of the magistrate's ruling was the potential of the former president's move to diplomatic missions near the residence, considering that the probes revealed a record of arranging to ask for protection through a diplomatic representation", a declaration said.
The judicial paperwork underscores that the American diplomatic mission in the federal district, Brazil's capital, is situated around 13km from the former president's residence.
Worldwide Consequences
The former president's legal troubles have provoked anger from fellow right-wing populist United States President Trump, leading him to impose a 50% tariff on Brazilian product imports.
He is being kept in a Federal Police station in Brazil's capital city and will undergo a detention review on Sunday.
Recent Judicial Appeals
It was only on last Friday that the ex-leader's attorneys asked the Supreme Court to permit him to serve his whole jail sentence under house arrest, with digital surveillance.
They also requested that Bolsonaro be authorized to leave his home for medical care, saying he demanded ongoing care for respiratory ailments and other health problems.
Details of Guilty Verdict
He was found guilty of heading a plot aimed at keeping him in power after he was defeated in the 2022 election to his ideological adversary, President Lula.
Supreme Court justices said that he knew of a plan which involved plans to murder his opponent and his VP candidate, Geraldo Alckmin, and to arrest and execute the presiding judge - the High Court judge who has been overseeing the former president's case.
The scheme was stopped because it didn't receive the endorsement of the armed forces officials. The current president was inaugurated without incident on 1 January 2023.
But a seven days after, on the eighth of January, thousands of his backers invaded and destroyed official structures in the national capital, Brazil's capital.
The law enforcement took action and around 1,500 people were taken into custody.
The justices found that the rioters had been encouraged by him whose plan, they said, was for the Brazilian military to take action, restore order and reinstate his authority.
At the time, his attorneys called the 27 years and three months sentence extremely harsh.
He was also banned from seeking elected position until the year 2060 - eight years after the end of his sentence.
The former president called the legal proceedings a targeted investigation" and said it was intended to stop him competing in the 2026 presidential election.