One of the main purposes of private international law is the resolution of conflicts of jurisdiction in civil matters. In the European Union (EU), this goal is pursued by an articulate body of regulations, forming part of what is usually labelled as ‘European procedural law’ or ‘European civil procedure’. In criminal law, by contrast, no such system exists: although Eurojust aims at resolving conflicts of jurisdiction by facilitating the identification of the jurisdiction that should prosecute cross-border crimes, no hard-law instrument regulates this matter in a binding fashion.