Piotr Girdwoyn in 1995 graduated from Faculty of Law and Administration at the University of Warsaw, where in 1999 he obtained the Ph.D. degree in Legal Sciences based upon doctoral thesis devoted to reconstructing the past (criminalistic versions). In 2002-2003, Girdwoyn benefited from scholarship in Max Planck Institut für ausländisches und internationales Strafrecht in Freiburg (Germany) where he conducted research on assumptions for his habilitation thesis elaborated under scientific patronage of Prof. Albin Eser. The paper (criminalistic defence tactics – outline) was defended in 2005, and since 2006 Girdwoyn has worked as Associate Professor at the Department of Criminalistics of Warsaw University Faculty of Law and Administration. In 2006 he stayed as Visiting Fellow at School of Law, University of Baltimore (USA), and in 2007 – thanks to the scholarship of H. and M. Straniak – at the Faculty of Law, Basel University. In 2007, Girdwoyn moved to the position of Director of Forensic Science Centre at Warsaw University, where in collaboration with, among others, Warsaw High School of Technology, National Academic Computer Network and Polish Security Printing Works he has been involved in “The Platform for Secure Implementation of Biometric Systems for Verification and Identification” project. The project was conducted within 7th competition for development projects in the field of security and country’s defense, of the Ministry of Science and Higher Education in Poland. In 2016 Prof. Girdwoyn has been elected for a post of Director of Institute of Criminal Law, at the University of Warsaw. In 2017 he became a full professor of the University of Warsaw. In November 2017 Girdwoyn was appointed Chair Professor of Criminal Justice College of East China University of Political Science and Law in Shanghai, China(2017-2020), and Visiting Professor of College of Medicine and Forensics, Xi’an Jiaotong University in Xi’an, China (2017-2018). In 2020 Prof. Girdwoyn has been elected for a member of the Senate of the University of Warsaw, member of the Board and member of the Scientific Counsil of the Polish Forensic Association. On 16th Feb. 2021 Piotr Girdwoyn moved back to the position of Director of Forensic Science Centre at the University of Warsaw.