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Dr Sigrid Mehring-Zier, LL.M.


The focus of Dr Sigrid Mehring-Zier’s work is on individual defence briefs related to white-collar crime and tax offences as well as advisory services for and the representation of corporate clients in criminal law cases, also in an international context. Having obtained a doctorate on the topic of medical war crimes and as a graduate of both German and Dutch law, Dr Mehring-Zier has in-depth expertise in German legal proceedings under international criminal law.

Curriculum vitae

  • Legal studies at the University of Amsterdam with a focus on international law
  • Academic assistant at the Max Planck Institute for Comparative Public Law and Interna-tional Law (Professor Rüdiger Wolfrum)
  • Doctorate at the University of Hamburg (“The Role of Physicians in Armed Conflict – The Intersection of International Humanitarian Law and Medical Ethics“)
  • Adviser on human rights, Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH
  • Lawyer at Ufer Knauer/Knauer Partnerschaft von Rechtsanwälten (2020-2023)
  • Lawyer at Feigen Graf since 2023


highly qualified, very committed lawyers
Legal 500 2021
the team offers particular expertise on matters related to financial misconduct, cum-ex matters, tax evasion and corruption
Chambers 2023
very clearly one of the foremost firms
Legal 500 2022
present in almost all current investigations
JUVE 2022/23

Areas of Practice

Criminal employment law

Capital markets criminal law

Consumer criminal law

Embezzlement proceedings

Banking criminal law

Antitrust fine proceedings

Tax criminal law

Antitrust criminal law

Cum/ex proceedings

Criminal law on corruption

Environmental criminal law

Selected Publications

Command Responsibility


The Companion to International Humanitarian Law, 246 ff. 2018

First do no harm


Medical Ethics in International Humanitarian Law, 2015

The Judgment of the German Bundesverfassungsgericht concerning Reparations for the Victims of the Varvarin Bombing


International Criminal Law Review, 191 ff., 2014

Water Law and Cooperation in the Euphrates-Tigris Region


Herausgeberschaft, 2013

The Ethicalization of International Humanitarian Law


Ethics and Law – The Ethicalization of Law, 229 ff., 2013

The rules for medics in armed conflict


Humanitäres Völkerrecht – Informationsschriften, 193 ff., 2012

Collective Punishment


Max Planck Encyclopedia of Public International Law, 2012

The International Federation of Red Cross and Red Crescent Societies


Max Planck Encyclopedia of Public International Law, 2012

Book Review of Gerd Hankel: The prohibition of killing in war


European Journal of International Law, 1198 ff., 2011

Medical War Crimes


Max Planck Yearbook of United Nations Law Vol. 15, 229 ff., 2011

International cooperation: from peacekeeping to sustainable development


Zeitschrift für ausländisches öffentliches Recht und Völkerrecht 71, 443 ff., 2010

The Rights and Duties of Physicians in Armed Conflicts


Militair Rechtelijk Tijdschrift, 205 ff., 2010

Doctors as actors in war


Akteure in Krieg und Frieden, 69 ff., 2010