Bolsonaro has been arrested after authorities concluded he posed a definite escape threat while under house arrest.
The one-time leader was sentenced of plotting a military coup in the ninth month and sentenced more than over two decades in prison, but he was staying under home detention pending legal challenges.
Brazilian Supreme Court Justice the presiding justice said the move to detain the septuagenarian politician was a safety action after recent developments came to light.
This involved seeking to disable his electronic bracelet and a summons to a demonstration that could "allow for a possible escape.
Court Filing Details Flight Fears
In a filing authorising the custody, Justice Moraes said data from the unit overseeing Bolsonaro's house arrest suggested the former leader's "intention to break the electronic ankle bracelet to ensure success in his flight.
This, it said, would be "facilitated by the chaos caused by the protest called by his son.
His child, Flávio Bolsonaro, who works 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 Friday: Do you plan to struggle for your country, or watch it all from your smartphone there on your couch? I invite you to fight with us."
He said the demonstration would be so supporters could offer prayers for his physical condition and for the restoration of democratic rule in our country."
Diplomatic Refuge Fears
Part of Justice Moraes's determination was the chance of his transfer to diplomatic missions near the home, considering that the investigations revealed a record of arranging to seek refuge through a consular facility", a statement said.
The court filing emphasizes that the US embassy in the national capital, the capital city, is positioned around 8 miles from the former president's residence.
Worldwide Consequences
His judicial problems have drawn the ire of fellow conservative nationalist United States President President Trump, leading him to implement a half-rate duty on imports of Brazilian goods.
Bolsonaro 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 last Friday that the former president's lawyers asked the High Court to allow him to fulfill his full incarceration period under domestic detention, with electronic monitoring.
They also requested that he be authorized to leave his home for medical care, saying he required frequent medical attention for respiratory ailments and other illnesses.
Background on Conviction
Bolsonaro was convicted of leading a conspiracy aimed at maintaining his control after he failed to win the national vote to his political opponent, President Lula.
Top judicial officials said that he knew of a scheme which encompassed plans to assassinate Lula and his VP candidate, his vice-presidential candidate, and to detain and kill Justice Moraes - the Supreme Court justice who has been overseeing the former president's case.
The conspiracy was stopped because it failed to get the backing of the army and air force commanders. Lula was sworn in without incident on the first day of 2023.
But a week later, on 8 January, thousands of his backers invaded and destroyed public facilities in the capital, the capital city.
The security forces took action and around fifteen hundred individuals were arrested.
The magistrates found that the demonstrators had been encouraged by him whose plan, they said, was for the country's army to intervene, restore order and reinstate his authority.
At the moment, his attorneys called the 27 years and three months sentence unreasonably severe".
He was also barred from running for public office until twenty-sixty - a decade minus two years after the completion of his term.
The former president called the trial a targeted investigation" and said it was aimed at blocking him running in the 2026 presidential election.
