JAKARTA - Indonesia's anti-corruption agency has banned the speaker of parliament from overseas travel for six months in connection with a graft case involving new national identity cards, an agency official said on Tuesday.
The case is one of the biggest tests facing the agency, known by its Indonesian initials KPK. It says US$170 million (S$210 million) was believed to have been stolen from the budget for the procurement of electronic identity (ID) cards.
The agency has come under repeated criticism from the establishment as it fights to root out corruption in South-east Asia's biggest economy.
An unidentified attacker threw acid at a senior KPK investigator handling the ID card case early on Tuesday, Jakarta police spokesman Argo Yuwono said.
The investigator, Novel Baswedan, was being treated in hospital and police were investigating whether the attack was related to his work.
The KPK declined to comment on the attack.
The agency has put two suspects in the case on trial and they have told a court that at least 37 politicians benefited from the theft of funds from the ID procurement budget, including speaker Setya Novanto.
Mr Setya, who is also the chairman of Indonesia's second-biggest political party, Golkar, was not immediately available for comment. He has not been charged and has previously denied wrongdoing.
A public relations official for the KPK, Ipi Maryati, said Mr Setya had been banned from travel so that "whenever his information is needed in the investigation of the case, he's not out of the country".
Golkar's secretary general, Idrus Marham, said the party and Mr Setya would respect the legal process and Mr Setya would co-operate with the KPK.
"We also believe in the principle of innocent until proven guilty," Mr Idrus said.
The accusations made against Mr Setya and others, set out by the KPK in an indictment, say that sums ranging from US$5,000 to US$5.5 million were divided up in a room in parliament to members of various parties, including the one backing President Joko Widodo.
The president's party has said previously it was investigating the accusation and would follow the legal process.
Global anti-graft watchdog Transparency International found in a recent survey that Indonesians perceived parliament to be their most corrupt institution.