The Reception of Kelsen's Pure Theory of Law in Germany

The Pure Theory of Law (Reine Rechtslehre) of Hans Kelsen (1881–1973) has exercised a profound influence on German constitutional law and legal theory. Kelsen’s positivist conception of law as a hierarchical system of norms, his theory of the basic norm (Grundnorm), and his model of constitutional review as a form of negative legislation shaped the institutional design of the Federal Constitutional Court and the methodology of German public law. Though Kelsen left Germany in 1933 and spent most of his career in Vienna, Geneva, and Berkeley, his ideas were absorbed into German legal thought through his students and through the reception of his writings in the post-war period.

The Stufenbau: Hierarchy of Norms

Kelsen’s Stufenbau (hierarchy of norms) theory conceives of the legal order as a dynamic system of norms arranged in levels of authority. Each norm derives its validity from a higher norm, ultimately culminating in the basic norm (Grundnorm), which is presupposed as the foundation of the entire system. The hierarchy proceeds from the constitutional level through statutory law to regulations and individual legal acts. Each level both executes the higher norm and provides the framework for the lower level. The Stufenbau theory has been exceptionally influential in German public law, where it provides the conceptual framework for understanding the relationship between the Grundgesetz, federal statutes, executive regulations, and individual administrative acts. The Federal Constitutional Court has adopted the hierarchical model in its jurisprudence on the priority of constitutional law over ordinary legislation. The theory also underlies the system of constitutional review: a statute that conflicts with a higher constitutional norm is void.

Constitutional Court as Negative Legislator

Kelsen developed the theory of constitutional review as a form of negative legislation. The constitutional court, in Kelsen’s model, does not create positive law but annuls legislative acts that conflict with the constitution. This function is legislative in character because the annulment of a statute is an act of legislation in negative form: it sets aside the general norm established by parliament. Kelsen’s model of the constitutional court as a negative legislator was directly influential on the design of the Federal Constitutional Court (Bundesverfassungsgericht). The Austrian Constitutional Court, which Kelsen helped to create, served as the model for the German Court. The power of abstract norm control (abstrakte Normenkontrolle) under Article 93 GG empowers the Federal Constitutional Court to declare statutes void if they conflict with the Grundgesetz. The Court’s decision has the force of law and binds all constitutional organs. The Kelsenian conception of constitutional review as a form of legislation continues to shape German debates about the proper role of the Constitutional Court and the limits of judicial power.

Reception and Critique in Germany

Kelsen’s Pure Theory was received in Germany with both enthusiasm and resistance. His positivist approach faced opposition from natural law theorists who argued that law must be grounded in morality, particularly in the post-war period when natural law thinking experienced a revival as a response to the Nazi experience. The Radbruch formula — developed by Gustav Radbruch, who argued that extreme injustice is not law — offered an alternative to Kelsenian positivism. Kelsen’s theory also faced criticism from those who argued that the basic norm is a formalist fiction that cannot explain the normative force of law. Despite these critiques, Kelsen’s influence on German constitutional law is undeniable. His conceptual framework — the hierarchy of norms, the structure of the legal order, the distinction between the creation and application of law, and the theory of constitutional review — has become part of the basic vocabulary of German public law. The Federal Constitutional Court’s methodology, particularly its use of formal categorisation and its structuring of review through the hierarchy of norms, reflects Kelsenian influences.

Kelsen and Schmitt: The Guardian of the Constitution

The debate between Hans Kelsen and Carl Schmitt over the role of the guardian of the constitution is one of the most famous controversies in twentieth-century German legal theory. Schmitt argued in Der Hüter der Verfassung (1931) that the Federal President, not a constitutional court, should be the guardian of the constitution. Schmitt contended that constitutional adjudication is inherently political and that a court lacks the legitimacy to make the political decisions that constitutional interpretation requires. Kelsen responded in Wer soll der Hüter der Verfassung sein? (1931), arguing that constitutional review is a legal function that can be exercised by a specialised court. The controversy addressed fundamental questions about the nature of constitutional interpretation, the relationship between law and politics, and the institutional design of constitutional review. The post-war German constitutional settlement largely adopted Kelsen’s model: the Federal Constitutional Court was established with extensive jurisdiction and has exercised its power of constitutional review vigorously. However, Schmitt’s concerns about the political character of constitutional adjudication continue to resonate in German debates about judicial activism and the limits of constitutional review.

The Stufenbau in Federal Constitutional Court Jurisprudence

The Federal Constitutional Court’s jurisprudence regularly applies Kelsenian concepts. The hierarchy of norms structures the Court’s analysis of conflicts between different legal sources. The Court distinguishes between constitutional provisions, formal statutes, statutory instruments, and individual administrative acts, applying stricter scrutiny to lower-level norms. The doctrine of verfassungskonforme Auslegung (interpretation in conformity with the constitution) reflects the hierarchical structure: a statute must be interpreted in a manner that avoids conflict with the constitution, preserving its validity within the hierarchical order. The Court’s approach to determining the validity of legal norms employs Kelsenian logic: a lower norm is void if it conflicts with a higher norm, unless the lower norm can be interpreted as consistent with the higher norm. The Stufenbau theory also underlies the Court’s Solange jurisprudence: European Union law is applied within limits set by the constitutional guarantees of the Grundgesetz, reflecting the hierarchical relationship between national constitutional law and supranational law. Kelsen’s theory of the legal order thus provides the structural framework for the most important constitutional adjudication in modern Germany.