Bolsonaro has been arrested after authorities concluded he posed a serious risk of fleeing while under domestic detention.
The one-time leader was found guilty of orchestrating a government overthrow in September and given more than over two decades in incarceration, but he remained under confinement pending legal challenges.
High Court Judge the presiding justice said the move to detain the elderly politician was a safety action after "new facts" came to light.
This involved seeking to disable his tracking device and a summons to a demonstration that could enable a chance to flee".
Legal Document Reveals Flight Fears
In a document approving the detention, the magistrate said intelligence from the facility tracking the former president's confinement suggested the ex-president's plan to remove the tracking monitor to guarantee victory in his flight.
This, it said, would be "facilitated by the confusion caused by the demonstration called by his offspring.
His child, Flávio, who works as a congressional representative, called for a assembly of his supporters near his father's house to take place on Saturday evening.
His son wrote on social media on last Friday: Do you plan to struggle for your country, or see it all from your phone there on your sofa? I call on you to battle with us."
He said the gathering would be so supporters could seek divine intervention for his health and for the restoration of democratic rule in our land."
Foreign Shelter Risks
Part of the judge's decision was the possibility of the former president's transfer to diplomatic missions near the home, considering that the inquiries revealed a background of planning to seek refuge through a diplomatic representation", a announcement said.
The judicial paperwork emphasizes that the United States embassy in the federal district, the capital city, is located around 8 miles from Bolsonaro's home.
Global Responses
The former president's legal troubles have provoked anger from fellow populist conservative United States President President Trump, leading him to enact a 50% tariff on Brazilian product imports.
He is being kept in a Federal Police station in the capital and will experience a custody hearing on the following day.
Recent Legal Requests
It was only on last Friday that the former president's lawyers asked the Top Court to authorize him to complete his entire prison term under domestic detention, with tracking devices.
They also requested that he be authorized to exit his dwelling for medical treatment, saying he required frequent medical attention for respiratory ailments and other health problems.
Details of Guilty Verdict
Bolsonaro was determined responsible of leading a scheme aimed at retaining his authority after he failed to win the presidential race to his political opponent, Lula.
High Court judges said that he was aware of a plan which included plans to assassinate Lula and his running partner, Geraldo Alckmin, and to imprison and murder the presiding judge - the Supreme Court justice who has been managing his judicial proceedings.
The plot was stopped because it couldn't obtain the support of the armed forces officials. His successor was took office without incident on 1 January 2023.
But a following week, on January 8th, many his followers attacked and damaged government buildings in the national capital, Brasília.
The law enforcement took action and around approximately 1,500 persons were detained.
The justices found that the protesters had been provoked by the former president whose strategy, they said, was for the Brazilian military to step in, reestablish control and reinstate his authority.
At the period, the legal team called the 27 years and three months sentence "absurdly excessive.
He was also prohibited from seeking elected position until twenty-sixty - eight years later after the conclusion of his imprisonment.
The one-time head of state called the court case a targeted investigation" and said it was designed to prevent him running in the 2026 national vote.