Bolsonaro has been arrested after authorities determined he posed a concrete flight risk while under home confinement.
The ex-president was convicted of planning a armed takeover in the ninth month and given more than over two decades in jail, but he remained under home detention pending legal challenges.
High Court Judge Justice Moraes said the move to detain the 70-year-old politician was a precautionary step after fresh information came to light.
This encompassed trying to remove his electronic bracelet and a call for a public vigil that could facilitate a chance to flee".
Court Filing Details Escape Concerns
In a filing authorising the detention, the judge said data from the centre monitoring the former president's confinement suggested the ex-president's aim to disable the tracking monitor to ensure success in his escape.
This, it said, would be made easier by the chaos caused by the protest called by his child.
His son, Flávio Bolsonaro, who holds office as a senator, called for a assembly of his followers near his father's house to take place on Saturday night.
Flávio Bolsonaro wrote on digital networks on the previous day: Do you plan to struggle for your nation, or observe everything from your mobile device there on your settee? I urge you to fight with us."
He said the vigil would be so supporters could "pray for his physical condition and for the return of democracy in our land."
Foreign Shelter Risks
Part of the magistrate's decision was the possibility of his move to foreign missions near the residence, considering that the probes revealed a history of arranging to ask for protection through a diplomatic representation", a announcement said.
The legal document emphasizes that the American diplomatic mission in the national capital, Brazil's capital, is situated around 8 miles from the former president's residence.
International Reactions
Bolsonaro's legal woes have generated frustration from fellow right-wing populist United States President Donald Trump, causing him to implement a half-rate duty on goods coming from Brazil.
The former president is being held in a Federal Police station in the capital and will undergo a detention review on the next day.
Recent Judicial Appeals
It was only on last Friday that the his legal team asked the High Court to authorize him to serve his whole jail sentence under home confinement, with digital surveillance.
They also asked that Bolsonaro be authorized to leave his home for medical treatment, saying he required regular treatment for pulmonary infections and other health problems.
Background on Conviction
Bolsonaro was found guilty of heading a conspiracy aimed at retaining his authority after he was defeated in the national vote to his ideological adversary, Luiz Inácio Lula da Silva.
High Court judges said that he had knowledge of a plan which included plans to assassinate the current president and his vice-presidential running mate, his vice-presidential candidate, and to arrest and execute Alexandre de Moraes - the top judicial official who has been presiding over his judicial proceedings.
The conspiracy was prevented because it didn't receive the backing of the military leaders. The current president was took office without problem on January 1st, 2023.
But a following week, on January 8th, thousands of his backers attacked and damaged public facilities in the national capital, the capital city.
The security forces took action and around 1,500 people were taken into custody.
The justices found that the protesters had been incited by Bolsonaro whose strategy, they said, was for the national armed forces to take action, bring back stability and return him to office.
At the moment, Bolsonaro's lawyers called the 27 years and three months sentence unreasonably severe".
He was also banned from seeking elected position until twenty-sixty - a decade minus two years after the conclusion of his imprisonment.
The one-time head of state called the trial a "witch hunt and said it was aimed at blocking him running in the 2026 national vote.
