Bolsonaro has been taken into custody after authorities determined he posed a concrete flight risk while under house arrest.
The ex-president was convicted of orchestrating a military coup in September and handed more than over two decades in prison, but he remained under home detention pending court reviews.
High Court Judge Alexandre de Moraes said the move to detain the septuagenarian politician was a precautionary step after recent developments emerged.
This involved seeking to disable his electronic bracelet and a summons to a supporters' gathering that could "allow for a chance to flee".
Judicial Records Show Flight Fears
In a paperwork permitting the detention, the magistrate said information from the facility tracking Bolsonaro's house arrest suggested the former leader's "intention to break the surveillance device to secure accomplishment in his escape.
This, it said, would be assisted by the chaos caused by the protest called by his offspring.
His son, his son Flávio, who serves as a congressional representative, called for a assembly of his followers near Bolsonaro's home to take place on Saturday evening.
Flávio Bolsonaro wrote on digital networks on the previous day: Will you battle for your homeland, or see it all from your smartphone there on your settee? I urge you to fight with us."
He said the vigil would be so supporters could "pray for his health and for the return of democracy in our land."
Diplomatic Refuge Fears
Part of Justice Moraes's decision was the possibility of the former president's move to diplomatic missions near the dwelling, considering that the inquiries revealed a history of arranging to ask for protection through a embassy office", a announcement said.
The judicial paperwork underscores that the United States embassy in the capital, Brazil's capital, is located around 8 miles from Bolsonaro's home.
Worldwide Consequences
Bolsonaro's legal woes have provoked anger from fellow populist conservative US President Donald Trump, leading him to implement a fifty percent tax on Brazilian product imports.
He is being held in a national police facility in the capital and will have a imprisonment assessment on the following day.
Latest Court Petitions
It was only on Friday that the former president's lawyers asked the High Court to permit him to complete his entire prison term under house arrest, with electronic monitoring.
They also asked that Bolsonaro be permitted to depart his residence for medical treatment, saying he demanded frequent medical attention for respiratory ailments and other health problems.
Details of Guilty Verdict
The former president was convicted of heading a scheme aimed at keeping him in power after he lost the 2022 election to his ideological adversary, President Lula.
High Court judges said that he had knowledge of a plan which included plans to kill Lula and his VP candidate, Alckmin, and to arrest and execute the presiding judge - the High Court judge who has been overseeing his judicial proceedings.
The plot was prevented because it didn't receive the support of the armed forces officials. His successor was inaugurated without incident on the first day of 2023.
But a week later, on the eighth of January, thousands of his backers invaded and destroyed government buildings in the federal district, Brasília.
The security forces intervened and around approximately 1,500 persons were taken into custody.
The magistrates found that the protesters had been provoked by the former president whose plan, they said, was for the Brazilian military to take action, bring back stability and bring him back to power.
At the period, Bolsonaro's lawyers called the 27 years and three months sentence extremely harsh.
He was also barred from campaigning for office until twenty-sixty - eight years later after the conclusion of his imprisonment.
The ex-leader called the legal proceedings a political persecution and said it was aimed at blocking him participating in the 2026 national vote.
