
Dr Patrick Poertner, LL.M.
Lawyer
ProfilE
Dr Patrick Poertner’s range of activities covers all aspects of individual and corporate defence under commercial and tax criminal law. He focuses in particular on employer, corruption and environmental criminal law as well as administrative offense law. In addition, dr Poertner advises companies on the implementation of compliance management systems and conducts internal investigations as part of compliance investigations.
Dr Poertner holds a doctorate in criminal law from the University of Osnabrueck and completed the LL.M. course in “Business and Tax Law” at the Ruhr University Bochum. He is a board member of the Association for the Promotion of the Institute for Commercial Criminal Law and the ZEIS (FIZ) at the University of Osnabrueck as well as a member of the “Wirtschaftsstrafrechtlichen Vereinigung e.V.” and the Alumni and Support Association of the LL.M. in Commercial Criminal Law at the University of Osnabrueck.
Curriculum vitae
- Legal studies with complementary education in economics at the University of Osnabrueck and the Univerzita Karlova Prague, with a focus on German and European commercial criminal law
- Trainee lawyer in the district of the Higher Regional Court Hamm
- Academic assistant at the Institute for Commercial Criminal Law, Chair of German and European Criminal Law and Criminal Procedure Law, International Criminal Law and Comparative Criminal Law (Prof. Dr Prof. h.c. Arndt Sinn) at the University of Osnabrueck
- LL.M. studies “Commercial and Tax Law” at the Ruhr University Bochum
- Doctoral thesis in criminal law at the University of Osnabrueck
- Lawyer at Feigen Graf since 2023
REFERENCES
AREAS OF PRACTICE
Fraud and embezzlement proceedings
Compliance investigations
Criminal employment law
Administrative offence proceedings
Compliance
Criminal law on corruption
Tax criminal law
Environmental criminal law
SELECTED PUBLICATIONS
Chapter 2: Preliminary legal analysis of the term “organized crime”
Pörtner
Sinn/Kinzig/Faßbender/Schmitz/Steinebach (eds.), Organisierte Kriminalitaet – Systematische Analyse der Phaenomenbereiche und moegliche staatliche Reaktionen, 19 ff., 2025
The history of organised crime
Poertner
Sinn (ed.), Organisierte Kriminalitaet? Klare Antworten aus erster Hand, 19 ff., 2023
Organised crime Definition
Poertner
Sinn (ed.), Organisierte Kriminalitaet? Klare Antworten aus erster Hand, 19 ff., 2023
Old wine in new bottles or a change of paradigm in the concept of a criminal organisation (Section 129 (2) StGB)?
Sinn/Iden/Poertner
ZIS, 435-451, 2021
The unsuccessful ‘cold water challenge’
Poertner
ZJS, 469-475, 2020