Daniel Vorcaro, the former owner of Banco Master, has taken his fight against Brazil’s justice system to the Inter-American Commission on Human Rights, arguing that his nearly eight months in preventive detention without a formal charge violates his rights and could force the government to answer internationally for the handling of the case.
Banco Master’s Vorcaro files rights complaint in Brazil case

The petition raises a legal and reputational risk for Brazil at a moment when authorities are still building the country’s biggest recent banking-fraud investigation. Vorcaro’s defense says he has been held since March 4 without a formal accusation from prosecutors, that there is no judge currently assigned to rule on his release request, and that the case lacks the safeguards of a judge of guarantees and higher-court review.
For investors, the case matters because the Banco Master scandal has already been tied to alleged crimes of about R$40 billion, or roughly $7 billion, and the legal fight now widens beyond Brazil’s domestic courts. Any prolonged constitutional or human-rights challenge can slow proceedings, complicate asset recovery, and extend uncertainty around counterparties, creditors and any remaining exposure linked to the bank’s collapse.
The defense is also attacking the way evidence was gathered, saying conversations with lawyers were used against Vorcaro and that state-held material, including phone messages, was leaked. It cites alleged breaches of articles covering personal integrity, liberty, judicial guarantees, privacy and judicial protection under the American Convention on Human Rights, which Brazil signed in 1992.
Vorcaro was indicted last week by federal police in the first phase of the Banco Master fraud probe, but prosecutors have still not filed formal charges. That leaves the dispute in a limbo that is likely to keep the case in the headlines and maintain pressure on Brazil’s institutions until the courts, or the international rights system, force a clearer path forward.
| Entity | Gains | Losses |
|---|---|---|
| Vorcaro defense | ▲International pressure | ▼Domestic legal leverage |
| Brazilian authorities | ▲None immediate | ▼Scrutiny over due process |
| Banco Master creditors | ▲Potential clarity later | ▼Prolonged recovery timeline |
| Investors in Brazil risk assets | ▲No direct gain | ▼Added legal and reputational noise |


