“…This was hardly a fait acommpli, as the time of its founding 'migrants were hardly a consideration in the newly created human rights scheme (Dembour, 2015) but the ECHR has always had had a cosmopolitan ethos to ensure the jurisdiction ratione personae of the Convention extends to everyone within the member states (Article 1). The first migration cases began to enter the ECtHR case law in the 1980s, by which point the Court had established itself as a de facto supreme court of human rights in Europe through legal development in other areas (Madsen and Gammeltoft-Hansen, 2021). The ECtHR has since built a sophisticated jurisprudence that extends from rights on expulsion or extradition against nonrefoulement both within and outside member states' territory, and has had broad impact for a range of migrant rights, such as non-discrimination, detention, privacy, and family unity.…”