It is our great pleasure to introduce our new IntLawGrrls contributor Annegret L. Hartig! Annegret works as a research assistant for Prof. Dr. Florian Jessberger in the field of international criminal law at University of Hamburg. She is currently in charge of the revision process of his textbook on international criminal law and conducts research for the chapters on the crime of aggression, immunities, modes of liability as well as international criminal law in practice. Moreover, she is one of the contributors to the “Annotated Leading Cases of International Criminal Tribunals” by André Klip and Steven Freeland. Besides that, she is writing her PhD thesis on the national implementations of the crime of aggression. Before working as a research assistant, she studied law within the trinational study program “European Law School” at the Humboldt University of Berlin where she passed her First State Exam. Additionally, she holds a maîtrise en droit in European Law (Université Panthéon-Assas, Paris) and a LL.M. in International Criminal Law (University of Amsterdam / Columbia University). Her master thesis dealt with the question whether the differentiated system of liability in the Rome Statute should be replaced with a unitary model. At the 16th session of the Assembly of States Parties, she had the chance follow the negotiations on the activation of the International Criminal Court’s jurisdiction over the crime of aggression.