The Rio de Janeiro Public Prosecutor's Office said that Senator Flavio Bolsonaro laundered up to R$ 2.3 million (US$ 554.000) with real estate transactions and with his chocolate shop.
The operations used cash that, for the Attorney's Office, originated from the salaries of employees in Flavio's cabinet at the Rio Assembly, which was managed by Fabrício Queiroz.
Researchers say the volume of deposits was incompatible with similar businesses.
The inflows of funds coincided with dates when Queiroz collected part of the salaries of the then state deputy's employees. The amount laundered in the store, according to MP-RJ, could reach R$ 1.6 million (US$ 385.000) between 2015 and 2018.
The senator denied wrongdoing, and criticized the judge of the case, Flávio Itabaiana. He said he sees it as an attempt to destabilize his father's government. The President of the Republic said he had "nothing to do" with the investigation.
Translated by Kiratiana Freelon