Ciro Nogueira

Senator Ciro Nogueira has been the subject of multiple corruption investigations and formal allegations throughout his career, though he has not been convicted in any case to date. The following are the major allegations and legal proceedings involving Nogueira: Operation Compliance Zero (2026): Nogueira is currently under investigation for allegedly receiving monthly payments (ranging from R$ 300,000 to R$ 500,000) from former Banco Master owner Daniel Vorcaro in exchange for political favors. The Federal Police (PF) allege he used his mandate to present an amendment (the "Master Amendment") drafted by the bank to increase FGC insurance limits, which would have benefited the institution. He is also accused of receiving benefits through fraudulent corporate acquisitions and hidden financial transfers involving the firm CNLF Empreendimentos and CN Motos. In May 2026, the STF authorized search warrants against him and imposed contact restrictions. Nogueira denies all illicit conduct. Previous investigations include: Operation Lava Jato/UTC Engineering (2013–2015): Accused of accepting R$ 2 million in bribes to favor construction projects. The case was rejected by the STF in 2018 due to insufficient evidence. Odebrecht Scheme (2010–2015): Accused of receiving R$ 7.3 million in illicit campaign contributions. The STF rejected the denunciation in 2023 after the Prosecutor-General’s Office (PGR) retracted its position. J&F (JBS) Scheme (2014–2017): Investigated for allegedly accepting R$ 8 million to delay the Progressistas party’s exit from Dilma Rousseff's government. This investigation remains pending. Obstrução de Justiça (PP Organization): Accused of obstruction of justice regarding an organized crime probe into the PP party. The STF rejected the denunciation in 2021. Operation Carbono Oculto (2025): Investigated for alleged money laundering linked to the PCC criminal faction via fuel stations in Piauí. No formal charges have been filed. Nogueira has successfully avoided conviction in all prior cases, often due to the rejection of charges by the STF or the withdrawal of formal complaints by the PGR.