The mechanism of Investor-State Dispute Settlement (ISDS) allows private foreign investors to challenge government measures before an ad hoc international arbitral tribunal. ISDS has been in existence for a long time. Yet recently this mechanism has proven very controversial, notably in the...

Recent case law suggests that the European courts are rethinking their position in respect of international law. On the one hand, the European Court of Justice (ECJ) is extending its case law on the WTO, denying ‘direct effect' to all of its provisions, to other major international treaties,...