Jair Bolsonaro has been detained after authorities concluded he posed a definite escape threat while under home confinement.
The former head of state was sentenced of orchestrating a military coup in September and given more than 27 years in incarceration, but he remained under house arrest pending appeals.
Top Judicial Official the presiding justice said the action to imprison the elderly politician was a safety action after recent developments were revealed.
This encompassed trying to remove his ankle monitor and a summons to a demonstration that could facilitate a possible escape.
In a filing authorising the detention, the judge said information from the facility tracking Bolsonaro's house arrest suggested the one-time head of state's "intention to break the surveillance device to secure accomplishment in his escape.
This, it said, would be assisted by the confusion caused by the protest called by his child.
His offspring, his son Flávio, who serves as a congressional representative, called for a meeting of his backers near his father's house to take place on the weekend.
The senator wrote on digital networks on Friday: "Are you going to fight for your homeland, or observe everything from your smartphone there on your sofa? I urge you to battle with us."
He said the vigil would be so supporters could seek divine intervention for his well-being and for the restoration of democratic rule in our country."
Part of the judge's decision was the potential of his "relocation to embassies near the dwelling, considering that the probes revealed a background of planning to seek refuge through a consular facility", a statement said.
The judicial paperwork highlights that the American diplomatic mission in the national capital, Brazil's capital, is located around approximately 13 kilometers from the former president's residence.
Bolsonaro's legal woes have drawn the ire of fellow conservative nationalist US President Trump, causing him to impose a 50% tariff on imports of Brazilian goods.
Bolsonaro is being detained in a national police facility in Brasilia and will experience a custody hearing on the next day.
It was only on the previous day that the former president's lawyers asked the Top Court to allow him to serve his whole jail sentence under domestic detention, with digital surveillance.
They also requested that he be authorized to exit his dwelling for medical care, saying he demanded ongoing care for lung conditions and other illnesses.
Bolsonaro was determined responsible of heading a plot aimed at retaining his authority after he was defeated in the presidential race to his political opponent, Luiz Inácio Lula da Silva.
Top judicial officials said that he was aware of a plot which encompassed plans to murder the current president and his vice-presidential running mate, Alckmin, and to detain and kill Alexandre de Moraes - the top judicial official who has been overseeing the former president's case.
The scheme was stopped because it didn't receive the backing of the army and air force commanders. Lula was sworn in without issue on the first day of 2023.
But a week later, on January 8th, thousands of Bolsonaro supporters attacked and damaged public facilities in the national capital, the capital city.
The law enforcement took action and around 1,500 people were arrested.
The judges found that the demonstrators had been incited by him whose strategy, they said, was for the country's army to intervene, bring back stability and bring him back to power.
At the time, the legal team called the decades-long sentence "absurdly excessive.
He was also prohibited from running for public office until 2060 - eight years later after the end of his sentence.
The ex-leader called the legal proceedings a "witch hunt and said it was designed to prevent him participating in the next presidential race.
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