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1Triage in der Pandemie (edited book)Mohr Siebeck. 2024.The peak of the Covid-19 pandemic ruthlessly exposed the need to deal with exceptional situations before they occur. Against this backdrop, the authors in this volume from the fields of law and ethics discuss how to select those patients in need of treatment when intensive care resources are scarce. What selection criteria are permitted and appropriate for triage, and who should set the general rules? For this 2nd edition, an article on the current legal situation since 2021 has been added.
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Triage in der PandemieTriage in der Pandemie (edited book)Mohr Siebeck. 2021.In einer Pandemie, wie Covid-19 sie ausgelost hat, kann es dazu kommen, dass nicht alle Erkrankten intensivmedizinisch behandelt werden konnen. Das erfordert Regeln, die Rechtssicherheit bei unvermeidbaren Auswahlentscheidungen geben. Die Pramissen, wie diese Regeln zu setzen sind, sind jedoch alles andere als eindeutig. Wahrend im Verfassungsrecht daruber debattiert wird, ob der demokratisch legitimierte Gesetzgeber ein Triage-Gesetz verabschieden darf oder soll, sind sich Vertreter der Strafre…Read more
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4Data Protection and Privacy: Digitalisation, Power, and the Transatlantic DivideIn Elisa Orrù & Ralf Poscher (eds.), Conceptions of Data Protection and Privacy: Legal and Philosophical Perspectives, Hart Publishing. pp. 1-12. 2025.
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11What would it take? The potential and limits of proportionality analysis in lawJurisprudence 16 (3): 443-476. 2024.Proportionality has become one of the primary standards for violations of fundamental and human rights in various constitutional and international jurisdictions. Proportionality in the strict sense requires a comparison of the infringement of a right with the achievement of a state interest pursued by a measure. The incommensurability of the two is an often-raised challenge to this comparison. The Article does not adopt a fully-fledged sceptical stance. Instead, it looks to proportionality as a …Read more
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52Conceptions of Data Protection and Privacy: Legal and Philosophical Perspectives (edited book)Hart Publishing. 2025.This open access book offers a clear understanding of the core concepts of data protection and privacy, exploring their social value through European and North American legal perspectives, political struggles, and the impact of the AI revolution. Featuring prominent experts and emerging scholars, the book presents diverse understandings to showcase the multifaceted interests and values embedded in the concepts of data protection and privacy. It links philosophical and legal perspectives on priva…Read more
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5IntroductionIn Arthur Jacobson & Bernhard Schlink (eds.), Weimar: A Jurisprudence of Crisis, University of California Press. pp. 171-176. 2019.
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12Human Dignity as Taboo: The Hidden Rationality Behind the Absolute Legal Prohibition of TortureIn Stephanie N. Arel, Levi Cooper & Vanessa Hellmann (eds.), Probing Human Dignity: Exploring Thresholds from an Interdisciplinary Perspective, Springer Nature Switzerland. pp. 49-60. 2024.From a constitutional point of view, the guarantee of human dignity in the German Basic Law can be understood as a legal taboo categorically ruling out any balancing that would lead to its relativization. It follows that anything we recognize as an infringement on human dignity amounts to a violation thereof. In terms of a paradigm pertaining to the violation of human dignity, this is of particular relevance to the prohibition of torture derived from the guarantee of human dignity. Legally, ther…Read more
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756Vagueness and Law. Philosophical and Legal PerspectivesIn Geert Keil & Ralf Poscher (eds.), Vagueness and Law: Philosophical and Legal Perspectives, Oxford University Press. pp. 1-20. 2016.Vague expressions are omnipresent in natural language. As such, their use in legal texts is virtually inevitable. If a law contains vague terms, the question whether it applies to a particular case often lacks a clear answer. One of the fundamental pillars of the rule of law is legal certainty. The determinacy of the law enables people to use it as a guide and places judges in the position to decide impartially. Vagueness poses a threat to these ideals. In borderline cases, the law seems to be i…Read more
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60What would it take? The potential and limits of proportionality analysis in lawJurisprudence 16 (3): 443-476. 2025.Proportionality has become one of the primary standards for violations of fundamental and human rights in various constitutional and international jurisdictions. Proportionality in the strict sense requires a comparison of the infringement of a right with the achievement of a state interest pursued by a measure. The incommensurability of the two is an often-raised challenge to this comparison. The Article does not adopt a fully-fledged sceptical stance. Instead, it looks to proportionality as a …Read more
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Why we argue about the law : an agonistic acount of legal disagreementIn Paweł Banaś, Adam Dyrda & Tomasz Gizbert-Studnicki (eds.), Metaphilosophy of Law, Hart. 2016.
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An intentionalist account of vagueness: a legal perspectiveIn Geert Keil & Ralf Poscher (eds.), Vagueness and Law: Philosophical and Legal Perspectives, Oxford University Press. 2016.
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999Unscharfe Grenzen im Umwelt- und Technikrecht (edited book)Nomos. 2012.Die Beiträge dieses Bandes untersuchen die Logik schwieriger Grenzziehungen im Umwelt- und Technikrecht aus juristischer, philosophischer, sozial- und ingenieurswissenschaftlicher Perspektive. Sie sind aus der interdisziplinären Tagung "Unscharfe Grenzen im Umwelt- und Technikrecht" hervorgegangen, die im März 2011 an der RWTH Aachen stattgefunden hat.
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131Vagueness and Law: Philosophical and Legal Perspectives (edited book)Oxford University Press. 2016.Vague expressions are omnipresent in natural language. Their use in legal texts is inevitable. A law phrased in vague terms will often leave it indeterminate whether it applies to a particular case. This places the law at odds with legal values. One of the fundamental pillars of the rule of law is legal certainty. The determinacy of the law enables people to use it as a guide and allows judges make impartial decisions. Vagueness poses a threat to these ideals. In borderline cases, the law seems …Read more
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40Human Dignity in the Mechanics of ClaimsJus Cogens 4 (2): 193-201. 2021.The mechanics of claims focusses predominantly on the claim to life. The claim to life is rooted in the autonomy principle, just like other specific claims. Still, the mechanics of claims does not have a systematic place for the fundamental negation of the status as an autonomous being as such. It is, however, the proctiction of the status as such, which is at the center of the protection of human dignity in German constitutional law. Looked at it from this perspective, the protection of human d…Read more
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55Resuscitation of a Phantom? On Robert Alexy’s Latest Attempt to Save His Concept of PrincipleRatio Juris 33 (2): 134-149. 2020.This paper is my contribution to round three of a longstanding debate between Robert Alexy and me about the principles theory’s concept of principle. In the first round, Alexy—bucking tradition—proposed a nongradualist distinction between rules and principles that divided the ontology of norms into two categorically distinct norm‐types. He connected this norm‐theoretical analysis with a theory of fundamental rights according to which such rights had to be understood as principles and thus interp…Read more
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142Insights, Errors and Self‐Misconceptions of the Theory of PrinciplesRatio Juris 22 (4): 425-454. 2009.The theory of principles is multifaceted. Its initial expression contained an important argument against positivist theories of adjudication. As a legal theory, it fails in its effort to claim a structural difference between rules and principles. It also fails as a methodological theory that reduces adjudication to subsumption or balancing. It misunderstands itself when it is conceived as a doctrinal theory especially of fundamental rights. Its most promising aspect could be its contribution to …Read more
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Principles theory : how many theories and what is their merit?In Matthias Klatt (ed.), Institutionalized reason: the jurisprudence of Robert Alexy, Oxford University Press. 2012.
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73The Ultimate Force of the Law: On the Essence and Precariousness of the Monopoly on Legitimate ForceRatio Juris 29 (3): 311-322. 2016.In his new book, Fred Schauer adopts a prototypical approach to the law in order to reestablish the importance of “The Force of Law”, and I strongly support his claim that there are interesting things to be said about the relationship between law and force. One aspect concerns the special kind of force to which the law is related. In the tradition of political philosophy, this kind of force has often been characterized with the state's monopoly on legitimate force. Whereas the essay will support…Read more