This book describes the enforcement powers that States may rely upon in their quest to repress piracy in the larger Gulf of Aden region. The piracy rules of the United Nations Convention on the Law of the Sea (UNCLOS) and the legal safeguards applicable to maritime interception operations are scrutinized before the analysis turns to the criminal prosecution of pirates and armed robbers at sea. The discussion includes so-called shiprider agreements, the transfers of alleged offenders to regional states, the jurisdictional bases for prosecuting pirates, and the feasibility of an international(ized) venue for their trial.