The research activities within the PhD programme are highly multidisciplinary and international, considering digital and environmental transitions. 

In private law, for instance, contracts in European law are particularly important, as they involve private law, European Union law, international law and commercial law. Similarly, labour law focuses on contracts, with aspects emerging that extend beyond the legal sphere, such as those relating to corporate organisation.

In public law, particular attention is paid to the internationalisation and Europeanisation of criminal law processes. Another area of focus is the regulation of the rights of foreign nationals across a wide range of relevant sectors. Anti-discrimination law is notably multidisciplinary in nature. From an interdisciplinary perspective, the analysis of the concept of legitimate interest is also central. Interdisciplinarity is also a cornerstone of civil procedure, particularly with regard to the circulation of evidence in judicial proceedings. The in-depth study of European criminal justice is equally significant, particularly in relation to forms of law enforcement cooperation aimed at combating crime.
Visiting lecturers from abroad also deliver seminars with the aim of promoting the internationalisation of the doctoral programme in terms of research.