Argentina Court Clears Extradition of Gang Arms Dealer to Brazil

BRAZIL · SECURITY

Key Facts

—The ruling: Argentina’s Supreme Court cleared the extradition to Brazil of an arms dealer and his wife on June 5.

—The accusation: Prosecutors say the couple sold tens of thousands of weapons to Brazil’s PCC and Comando Vermelho gangs.

—The scheme: Investigators allege a Paraguay-based front company imported European arms, later filed off serial numbers, then sent them on.

—The money: Brazilian police estimate the operation moved more than a billion reais over three years.

—The next step: The final decision now rests with Argentina’s executive branch.

—The charges: In Brazil the couple face counts of arms trafficking, running a criminal organisation and money laundering.

Argentina’s top court has cleared the way to send a man Brazilian police call South America’s biggest arms dealer to face trial in Brazil, where he is accused of arming the country’s two largest criminal gangs.

RTAsk Rio TimesHave a question about Brazil or Latin America? Get a straight answer from our reporting.Start asking →

The arms dealer Brazil wants back

Argentina’s Supreme Court confirmed a lower-court decision on June 5, clearing the extradition to Brazil of Diego Hernán Dirisio and his wife, Julieta Nardi Aranda. He is known in Brazil as the “master of arms”.

The judges rejected appeals from the couple’s defence, which had argued they faced political persecution in Brazil. With that, the court said the final call now lies with Argentina’s executive.

In Brazil they face charges of international arms trafficking, leading a transnational criminal organisation and money laundering. Brazilian police describe Dirisio as the largest arms dealer in South America.

The “master of arms” nickname captures the reach attributed to him. For years he sat at the centre of a tug-of-war between Brazilian and Argentine justice, with Brasília determined to bring him home for trial.

How the network is alleged to have worked

According to investigators, the operation ran through a firm based in Paraguay. From there it legally imported pistols, rifles and ammunition from European makers in countries such as Croatia, Turkey, the Czech Republic and Slovenia.

The legality at the front end is what made the scheme hard to stop. On paper, the imports looked like ordinary commercial purchases, with the diversion to criminal buyers hidden further down the chain.

The weapons were then allegedly altered before crossing into Brazil. Serial numbers were filed off in a Paraguayan border city, making the guns far harder to trace once they reached criminal hands.

A third party is said to have handled contact with the Brazilian buyers. Prosecutors allege the ultimate customers were the Primeiro Comando da Capital and the Comando Vermelho, Brazil’s two largest factions.

The scale, as police describe it, is striking. Estimates of the weapons supplied run into the tens of thousands, with the scheme said to have moved more than a billion reais over three years.

The arms themselves were heavy. Investigators point to rifles, sub-machine guns and pistols, the kind of firepower that has changed the balance in clashes between gangs and police in Brazilian cities.

A long cross-border chase

The case dates back years. The investigation began in 2020, and in late 2023 Brazilian authorities issued arrest warrants under a federal police operation, prompting the couple to flee.

They were caught by Interpol in early 2024 in the Argentine province of Córdoba. Since then the extradition request, filed by a federal court in Bahia, has wound through the Argentine courts.

An extradition treaty between the two countries underpins the request. Legal experts have said that framework reduces the risk of a diplomatic clash, even if the defence keeps contesting the move.

The Brazilian case is centred on a federal court in Bahia, where the original investigation took shape. Authorities there have pressed to have the couple serve any sentence on Brazilian soil.

Why the case matters

The weapons supply is the point. Brazilian police argue that the firepower of the country’s gangs grew sharply thanks to networks like this one, which feed military-grade rifles into urban conflicts.

It also lands amid a wider regional push on cross-border crime. Brazil and the United States have agreed to coordinate against arms and drug trafficking, and Washington recently labelled the two gangs as terrorist organisations.

The supply routes are regional by nature. Weapons that enter through Paraguay and the wider tri-border area feed gangs far from where the guns are bought, which is why a single case can ripple across several countries.

For the region, the ruling is a test of cooperation. Whether Argentina’s government follows the court and hands the couple over will signal how far neighbours will go to dismantle the supply chains behind organised crime.

For now, the legal path is set but not complete. The court has spoken, and attention turns to Buenos Aires, where the executive must decide whether to close a case that has run for years.

If the handover proceeds, the trial in Brazil would open a fuller account of how the network operated. That, more than the extradition itself, is what investigators say they are waiting for.

Frequently asked questions

What did Argentina’s court decide?

On June 5 the Supreme Court cleared the extradition to Brazil of an arms dealer and his wife, rejecting defence appeals. The final decision now rests with Argentina’s executive.

What is the couple accused of?

Prosecutors say they sold tens of thousands of weapons to Brazil’s PCC and Comando Vermelho gangs. They face charges of arms trafficking, criminal organisation and money laundering.

How did the scheme allegedly work?

Investigators allege a Paraguay-based firm legally imported European arms, then filed off serial numbers before the weapons were sent on to Brazilian buyers.

Why does the case matter?

Police say networks like this one armed Brazil’s gangs. The ruling is also a test of regional cooperation against the supply chains behind organised crime.