from the Indonesian parliament for construction of the Riau-1 coal-fired power plant project. Eni was arrested at Idrus's house, where she had been attending his son's birthday party. The following day, Idrus said he was shocked by her arrest. On 24 August 2018, Idrus was declared a suspect in the same case. The KPK arrested him on 31 August for allegedly using his influence as Golkar Party secretary general in the project. The KPK suspected Idrus received a pledge of $1.5 million from businessman Johannes Budisutrisno Kotjo if Samantaka Batubara company, a subsidiary of Blackgold, would receive a power purchase agreement deal from state electricity company PLN. The KPK said former Golkar Party chairman Setya Novanto had ordered Eni, who was deputy head of the DPR's commission on energy, to help Blackgold and China Huadian Engineering Company Limited to win the power plant construction project, valued at around US$900 million. However, after Setya was named a suspect in the national ID card corruption case, Eni reported to Idrus on the matter, as he was now acting chairman of Golkar. The KPK said Idrus and Eni had met with Kotjo at his office at Graha BIP building in Jakarta. Idrus was also said to have attended a meeting on the matter with PLN president director Sofyan Basir. When Idrus went on trial on 15 January 2019, prosecutors said he had told Eni to ask Kotjo for a bribe of $2.5 million, ostensibly to be used for Golkar's Extraordinary National Congress (Munaslub) in December 2017. Prosecutors said Idrus wanted the money because he sought to replace Setya Novanto as Golkar chairman. The court heard that Kotjo gave Idrus Rp2 billion via Eni's colleague Tahta Maharaya, while Eni gave about Rp713 million of the money from Kotjo to Muhammad Sarmuji, deputy secretary of the steering committee of the Golkar congress. On 23 April 2019, Jakarta Corruption Court convicted Idrus of corruption for receiving bribes in the Riau-1 power plant case. He was sentenced to three years in jail and fined Rp150 million. Presiding judge Yanto said Idrus received a bribe from Eni, who had received a Rp4.75 billion bribe from Kotjo. Prosecutors from the KPK had recommended Idrus be given a jail sentence of five years and a fine of Rp300 million. Prosecutors appealed the three-year sentence as being too lenient. Jakarta High Court concurred and in July 2019 extended Idrus's sentence to