Beyond the (Byzantine) state: towards a user theory of jurisdiction

This chapter explores the concept of ‘entangled legalities’ in the context of pre-modern and (post-)modern localised legal orders: regional, imperial, national, international, transnational and postnational. The first section explores the juridification of the international legal sphere; it contrasts private international law approaches with postnational law approaches, exploring the ways in which the recent postnational shift from hierarchical to heterarchical governance structures in fact leads us back to fundamental questions first posed by (Classical) Roman law. The second section focuses on the striking predominance of ‘strong’ legal norms in current analyses of transnational and postnational legal entanglements. The third section, in contrast, argues for a shift in scholarly emphasis away from ‘strong’ legal norms towards a more explicit focus on the importance of strategic legal argumentation in the constructing localised legalities, via a case study of the multiple juris(dictional)-generative practices revealed in the record of a specific, sixth-century, Roman (Byzantine) dispute settlement: P. Petra IV.39.