is the Principal Legal Counsel & CEO at Newlaw Law Firm, a member of the Appeals Disciplinary Board of the International Criminal Court (2023-2027) and a member of the ICCBA Executive Council (former ICCBA vice president in 2019-2020 and 2021-2022).
He is also the editor-in chief of Eurozine’s Greek partner journal Intellectum, a columnist (Fingerprints of the Day), writer (aka poet Konstantinos Melissas) and a translator.
Tsilonis serves as an academic tutor for the LLM Programme on ‘Criminological and Penal Law Perspectives on Corruption, Economic and Organised Crime’ at the Hellenic Open University. In addition, he serves as the Chairman of Intellectum NGO and was the 2020 Greece ICC Judicial Nominee. He wrote the book ‘The Jurisdiction of the International Criminal Court’, Springer (Switzerland, 2019), with a forthcoming 2nd edition expected shortly in 2023.