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Starting in April 2022, SUN Yi is a visiting fellow at ACIL, conducting research for his PhD project entitled “Constitutional review of Treaties”. The project investigates the domestic effects of treaties from a comparative perspective, more specifically, by examining the judicial control of treaties’ constitutionality performed by national (constitutional) courts as the basis for a functional comparison with those lacking such jurisdiction and assessing the respective constitutional and international legal implications.

SUN Yi is a PhD candidate at the Institute of International Law, Ludwig Maximilian University of Munich. His research interests include constitutional law as well as public international law, including international human rights law, and lie in particular in their intersections.

He graduated from Peking University Law School in 2017 with an LL.M. degree in Constitutional and Administrative Law. Prior to that, he studied law and business administration at Renmin University of China and qualified for the Chinese Bar.

In parallel to his PhD studies, he worked as a research assistant at the Chair of Chinese Legal Culture in the Institute of East Asian Studies, University of Cologne and supported the Chinese Fundamental Rights Jurisprudence Research Project. Previously, he interned at the United Nations Office of Legal Affairs, working for the United Nations Legal Counsel. He was also a study visitor at the European Court of Human Rights, clerking for the then judge from Austria.