What is the fine-grained topic of the following text: Minister of Justice Urmas Reinsalu (Pro Patria) has sent a letter to EU Commissioner Věra Jourová in which he suggests that large-scale cross-border money laundering investigations could in the future be led by the European Public Prosecutor's Office (EPPO). Only return the topic.
Large-scale cross-border money laundering investigations led by the European Public Prosecutor's Office (EPPO)