Teaching

Courses in the winter semester 2026/2027

• Lecture "Fundamentals of International Law"

  Wednesday, 10:15 am, Lecture Hall 6

  The international community is facing cross-border, global challenges: Wars, climate change, resource exploitation, terrorism, pandemics, migration. States cannot meet these challenges on their own, but must co-operate. International law provides legal forms, institutions and substantive guidelines for this. At the same time, this area of law is probably more dependent on the political and economic context than any other and is characterised by strong conflicts of interest between the actors involved. The further development and enforcement of international law is currently facing unprecedented challenges, insofar as the major central powers are currently not clearly committed to the international legal order, but on the contrary condone, threaten or themselves commit violations of the rules. What this means for the international legal order will be discussed repeatedly in the lecture.

  In addition, the subjects of international law, sources of law, the creation of law, fundamental substantive principles such as state sovereignty and the prohibition of the use of force, the legal framework of central institutions (in particular the United Nations), the legal consequences of violations of international law and the legal mechanisms of conflict resolution will be dealt with.

  Reading:

  • von Arnauld, International Law, 5th ed. 2023
  • Krajewski, International Law, 4th ed. 2026
  • Peters/Petrig, International Law, 7th ed. 2026
  • Crawford, Brownlie's Principles of Public International Law, 9th ed. 2019
  • Klabbers, International Law, 4th ed. 2023

  Please register for the course in FriedolinExternal link.

  The lecture will be held in German.

• Lecture "Constitutional Law of the European Union" (SB 7, 8)

  Tuesday, 02:15 pm, room 3.17

  The lecture deals with the theoretical foundations and dogmatic core problems of European constitutional law. The European constitutional system is developed from the interaction of supranational and member state constitutional law. Central individual topics are the structure of the EU institutions in view of the standards of the rule of law and the principle of democracy, law-making in the EU, the doctrine of competences, the protection of fundamental rights and European citizenship.

  Reading:

  • von Bogdandy/Bast (eds.), Union Constitutional Law, 2025
  • Lecheler/Gundel, Europarecht, 3rd ed. 2026
  • Schroeder, Grundkurs Europarecht, 8th ed. 2024
  • Schütze, European Union Law, 4th ed. 2025

  Please register for the course in FriedolinExternal link.

  The lecture will be held in German.

• Seminar "Resilient Democracy under the Strain of Authoritarianism" (SB 1, 7, 8)

  Prof. Dr. Isabelle Ley will hold the practice and exam seminar "Resilient Democracy under the Strain of Authoritarianism" during the 2026/2027 winter semester. Certificates can be obtained for the specialised areas (Schwerpunktbereiche) 1, 7 and 8, as well as for the International Legal Studies certificate programme. The deadline for submitting academic papers ends is 31 July 2026. You can find further information on the seminar herepdf, 286 kb · de. (Only German version available.)

  The pre-seminar meeting will take plan on 20 October 2026, 4 pm in room 2.43, Carl-Zeiss-Straße 3.

  Registration for exam candidates (by 31 July 2026 - deadline!)

  Registrationpdf, 120 kb · de for practice candidates (by 31 October 2026)