The more international law, taken as a global answer to global problems, intrudes into domestic legal systems, the more it takes on the role and function of domestic law. This raises a separation of powers question regarding law-making powers. This book considers that specific issue. In contrast to other studies on domestic courts applying international law, its constitutional orientation focuses on the presumptions concerning the distribution of state power. It collects and examines relevant decisions regarding treaties and customary international law from four leading legal systems, the US, the UK, France, and the Netherlands. Those decisions reveal that institutional and conceptual allegiances to constitutional structures render it difficult for courts to see their mandates and powers in terms other than exclusively national. Constitutionalism generates an inevitable dualism between international law and national law, one which cannot necessarily be overcome by express constitutional provisions accommodating international law. Valuable for academics and practitioners in the fields of international and constitutional law.

The more international law, taken as a global answer to global problems, intrudes into domestic legal systems, the more it takes on the role and function of domestic law. This raises a separation of powers question regarding law-making powers. This book considers that specific issue. In contrast to other studies on domestic courts applying international law, its constitutional orientation focuses on the presumptions concerning the distribution of state power. It collects and examines relevant decisions regarding treaties and customary international law from four leading legal systems, the US, the UK, France, and the Netherlands. Those decisions reveal that institutional and conceptual allegiances to constitutional structures render it difficult for courts to see their mandates and powers in terms other than exclusively national. Constitutionalism generates an inevitable dualism between international law and national law, one which cannot necessarily be overcome by express constitutional provisions accommodating international law. Valuable for academics and practitioners in the fields of international and constitutional law.

Constitutionalising Secession proceeds from the question, 'What, if anything, does the law have to say about a secession crisis?' But rather than approaching secession through the optic of political or nationalist institutional accommodation, this book focuses on the underpinnings to a constitutional order as a law-making community, underpinnings laid bare by secession pressures. Relying on the corrosive effects of secession, it explores the deep structure of a constitutional order and the motive forces creating and sustaining that order. A core idea is that the normativity of law is best understood, through a constitutional optic, as an integrative, associative force. Constitutionalising Secession critically analyses conceptions of constitutional order implicit in the leading models of secession, and takes as a leading case-study the judicial and legislative response to secession in Canada. The book therefore develops a concept of constitutionalism and law-making - 'associative constitutionalism' - to describe their deep structure as a continuing, integrative process of association. This model of a dynamic process of value formation can address both the association and the disassociation of constitutional systems.