Patek served 20 years in prison for his role in the 2002 terrorist attacks that killed 202 people from 21 countries.
Indonesia has granted parole to Umar Patek, who was convicted of the 2002 Bali bombings that killed more than 200 people, after serving more than half of his sentence.
Patek, a member of the Al Qaeda-linked group Jemaah Islamiyah (JI), was jailed for 20 years in 2012 after being found guilty of mixing the explosives used to attack two busy nightspots in the city of Kuta.
After his release, Patek will be required to participate in a “training program” until April 2030, according to a statement released by the Ministry of Justice and Human Rights on Wednesday.
His immunity will be revoked if he violates his terms during that time, the ministry added.
The Bali attack was the worst in Indonesian history and led to the downfall of stalwart groups such as JI. Australia and the United States also provided funds and aid to strengthen counter-terrorism operations in Jakarta.
Indonesia announced in August that Patek was eligible for parole after his sentence was reduced, in a decision contested by Australia, the 88-year-old in Bali.
On Thursday, Peter Hughes, one of the 200 people injured in the bombing and who spoke at Patek’s trial, said the man found guilty should be given a “very harsh sentence”.
“For them to be released, it’s ridiculous,” he told an Australian ABC reporter.
Patek was captured in Pakistan in 2011 after nearly 10 years on the run.
Prosecutors wanted the 52-year-old to serve life in prison because she showed remorse during her trial, and the judge sentenced her to 20 years. Patek was also convicted in connection with the 2000 Jakarta Christmas church bombings that killed people. 19.
Indonesia always grants amnesty to prisoners to commemorate the independence day on August 17.
Officials believe Patek “showed some change” after the hacking program, justice and human rights ministry spokeswoman Rika Aprianti told AFP.
“Most importantly, he pledged loyalty to the united Republic of Indonesia,” he said.
Australian Deputy Prime Minister Richard Marles urged Indonesia to keep Patek under constant surveillance.
Chained side by side to wooden poles on a small prison island, most of the attackers were killed by firing squad in 2008.
Ali Imron, who helped organize the attack and drove a car full of explosives, is serving a life sentence after showing remorse at his trial.
