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  • Dr Christian Marxsen

    Christian Marxsen leads the Max Planck Research Group “Shades of Illegality in International Peace and Security Law”. He is co-editor of the Cambridge University Press book series Max Planck Trialogues on the Law of Peace and war and has taught international law in Heidelberg, Beijing and Santiago de Chile.

  • Max Lesch

    Max Lesch researches international law and norms in dynamics of deviance. In his PhD project, he traces the development of the prohibition of torture since the 1940s. He has studied International Relations in Bonn, Frankfurt and Aberystwyth. Before joining the research group, he was a research associate at the Peace Research Institute Frankfurt and a visiting researcher at the University of Copenhagen.

  • Alexander Wentker

    Alexander Wentker is a doctoral researcher in international law at MPIL. He completed his First State Examination in law in Berlin (Humboldt-Universität) and holds master’s degrees in law from the universities of Oxford and Paris II. Prior to joining the research group, Alexander clerked at the Supreme Court of Namibia and interned, inter alia, with the UN Office for the Coordination of Humanitarian Affairs in New York.


  • Felix Herbert

    Felix Herbert is a student research assistant to the SHADES project. He studies Law with a focus on Public International Law. As a participant in the Jessup International Law Moot Court Competition in 2018, he gained some further insight into public international law and consolidated his particular interest therein.

  • Paula Anna Jenner

    Paula Anna Jenner has been a law student at the University of Heidelberg since October 2015. Through her participation in the 2018 Jessup Moot Court, she gained first impressions of International Law. Having developed a particular curiosity for Public International Law, she joined the SHADES project.

  • Florian Kriener

    Florian Kriener commenced his legal studies at the University of Heidelberg in fall of 2014. He joined the SHADES team after competing in the Jessup Moot Court and working for the Max Planck Institute’s team on the OSCE. During an exchange semester at Universidad de Chile his main interest was International Law with a particular focus on International Water Law.