David Moya is an Associate Professor of Constitutional Law at the University of Barcelona and the Director of the Observatory on Public Law (IDP). He is the main researcher in national and European projects in the area of migration.

Georgios Milios is a 'Serra Húnter' fellow of Constitutional Law at the University of Barcelona. He has published in international journals and is the author of the monograph El derecho a la vida familiar de los extranjeros (Comares, 2021).