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Dr Patrick Poertner, LL.M.

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

incredibly well established in all areas
JUVE 2023/24
diverse, represented in every generation, excellent personal and professional collaboration
Legal 500 2024
the team offers particular expertise on matters related to financial misconduct, cum-ex matters, tax evasion and corruption
Chambers 2024
very clearly one of the foremost firms
Legal 500 2022
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/06

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

Frankfurt

COLOGNE

MUNICH