Which regulatory bodies cooperate when dealing with cross-border suspicious or unusual financial activity investigations?

The European Commission is the executive branch of the European Union, responsible for proposing legislation and implementing decisions. While it can influence regulatory frameworks, it does not specifically focus on investigating financial activities or cooperating directly on suspicious financial activity investigations, making it less relevant in this context.

The Wolfsberg Group is an association of major global banks that aims to develop frameworks and guidance for managing financial crime risks. However, it does not function as a regulatory body or directly engage in investigations of suspicious financial activities, limiting its role in cross-border cooperation.

The Financial Action Task Force (FATF) is an intergovernmental body that sets international standards for combating money laundering and terrorist financing. While it plays a significant role in establishing guidelines and promoting cooperation, it does not directly handle investigations, which distinguishes it from the operational focus of FIUs.