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Public law

Law governing government actions

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  • 4 chapters

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Through Legal person, Government and State (polity)

The relationships public law governs are asymmetric and unequalized. Government bodies (central or local) can make decisions about the rights of persons. However, as a consequence of the rule-of-law doctrine, authorities may only act within the law (secundum et intra legem). The government must obey the law. For example, a citizen unhappy with a decision of an administrative authority can ask a court for judicial review.

The distinction between public law and private law dates back to Roman law, where the Roman jurist Ulpian (c. 170 – 228) first noted it. It was later adopted to understand the legal systems both of countries that adhere to the civil-law tradition, and of those that adhere to common-law tradition.

The borderline between public law and private law is not always clear. Law as a whole cannot neatly be divided into "law for the State" and "law for everyone else". As such, the distinction between public and private law is largely functional rather than factual, classifying laws according to which domain the activities, participants, and principal concerns involved best fit into. This has given rise to attempts to establish a theoretical understanding for the basis of public law. For example, an individual entering into a contract with the government for a service would usually fall within private law, even if the State is involved.

History of public law

The distinction between public and private law was first made by Roman jurist Ulpian, who argues in the Institutes (in a passage preserved by Justinian in the Digest ) that "public law is that which respects the establishment of the Roman commonwealth, private that which respects individuals' interests, some matters being of public and others of private interest." Furthermore, he defines public law as the law concerning religious affairs, the priesthood, and offices of the State. Roman Law conceived of the law as a series of relationships between persons and persons, persons and things, and persons and the State. Public law consisted of the latter of these three relationships. However, Roman lawyers devoted little attention to this area, and instead focused largely on areas of private law. It was, however, of great importance in Teutonic society, as noted by German legal historian Otto von Gierke, who defined the Teutons as the fathers of public law.

Drawing a line between public and private law largely fell out of favor in the ensuing millennium, though, as Ernst Kantorowicz notes, Medieval jurists saw a concern with the Roman conception of the res publica inherent in the legal fiction of the king's two bodies. However, legal philosophers during this period were largely theologians who operated within the realm of Canon Law, and were therefore instead concerned with distinctions between divine law, natural law, and human law. The "public/private" divide in law would not return until the 17th and 18th centuries. Through the emergence of the nation-state and new theories of sovereignty, notions of a distinctly public realm began to crystallize. However, the claims made by monarchs and, later, parliaments to unrestrained power to make law spurred attempts to establish a distinctly private sphere that would be free from encroaching State power.

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