Argentine Prosecutors Sharpen Law Enforcement’s Edge in Fight Against Complex Crime
April 7, 2025
In a proactive move to bolster law enforcement capabilities in teh face of increasingly complex criminal activities, the Rosario District Prosecutor’s Office in Argentina launched its 2025 training cycle on March 12. The initiative, aimed at provincial adn national security forces, focuses on enhancing their skills in control and prevention operations, as well as collaborative investigative techniques.
Accusatorial System Takes Center Stage
The training, held at the Faculty of legal and Social Sciences of the National University of the Coast (UNL) in santa Fe, comes as the Federal Criminal Procedure Code (CPPF) has been fully governing the province of Santa Fe since May 2024. This code represents a shift towards an accusatorial system, where the prosecution bears the burden of proof, mirroring aspects of the U.S. legal system. The cycle, spearheaded by interim attorney Javier Arzubi Calvo, head of the Rosario District Prosecutor’s Office, provided hands-on training on this system, which is approaching its one-year anniversary in the district.
A Hub of Collaboration
The AL auditorium buzzed with activity as approximately 80 members from various divisions and specialized units of the federal Police, the National Gendarmerie, the Naval Prefecture, and the Police of the Province of Santa Fe converged to participate as well.

Two-Pronged Approach to Enhanced Crime Fighting
The training program was structured around two principal themes. First, Valeria Kowalesky, head of the Special Unit of Undercover Agents and responsible for the Registry of Informants of the Ministry of National Security, led discussions on special examination techniques as outlined in Law 27,319, specifically addressing complex crimes. This mirrors the use of tools like witness protection programs and confidential informants common in U.S. law enforcement.
The second component involved practical training on the accusatorial system itself. This segment was delivered by officials and magistrates from the Fiscal Units of Rosario and Santa Fe, including federal prosecutor Gustavo Onel and María Virginia Sosa, an adjunct prosecutor from the Office of Complex Crimes of the Rosario Fiscal Unit. Marina marsili Accountant, an official from the Rosario District Attorney’s Office, coordinated the day’s events.
Implications for U.S. Law Enforcement
The Argentine initiative offers several valuable insights for U.S. law enforcement. The emphasis on specialized training for complex crimes reflects a growing need to address sophisticated threats like cybercrime, financial fraud, and transnational organized crime. The focus on the accusatorial system highlights the importance of prosecutorial capacity building, ensuring that prosecutors have the resources and expertise to effectively present cases in court.
Consider the increasing challenges posed by cybercrime in the U.S. According to the FBI’s Internet Crime Complaint Center (IC3), Americans lost over $10.2 billion to internet crime in 2022. Initiatives like the Argentine training program could serve as a model for enhancing the skills of law enforcement personnel in investigating and prosecuting these types of offenses.
The cooperation between different levels of law enforcement in Argentina—federal,provincial,and local—also underscores the importance of interagency collaboration. In the U.S., similar partnerships are crucial for tackling complex challenges like drug trafficking and terrorism.
Recent Developments and Future Directions
As the training session,the Rosario District Prosecutor’s Office has continued its efforts to strengthen law enforcement capabilities. Recent developments include the implementation of new technologies for crime analysis and the expansion of collaboration with international law enforcement agencies. These efforts reflect a commitment to staying ahead of evolving criminal threats.
Looking ahead, the Argentine example suggests several potential areas for further investigation. One promising avenue is the growth of standardized training curricula for complex crime investigations. Another is the creation of international networks of law enforcement professionals to facilitate the exchange of best practices and intelligence sharing.
Addressing Potential Counterarguments
While training initiatives are valuable, some might argue that they are insufficient to address the root causes of crime. Critics might point to factors like poverty, inequality, and lack of opportunity as primary drivers of criminal activity. However, these concerns are not mutually exclusive. Effective law enforcement, coupled with social and economic development programs, can create a more comprehensive approach to crime prevention.