Natural justice

Lore & Background

The right to a fair hearing is guaranteed in Europe by Article 6(1) of the European Convention on Human Rights, which complements the common law rather than replaces it. The requirements of natural justice or a duty to act fairly depend on context, as set out in Baker v Canada, including factors such as the nature of the decision, the statutory scheme, the importance of the decision to the individual, and legitimate expectations. Public authorities making legislative and general decisions do not have a duty to act fairly, while those making administrative and specific decisions may; preliminary decisions generally do not trigger the duty, but final decisions may.

Reader's Guide

Natural justice remains a foundational concept in English law and related legal systems, ensuring procedural fairness through the rule against bias and the right to a fair hearing. Its significance lies in maintaining public confidence in the legal system, as bias—whether actual, imputed, or apparent—undermines that confidence. The evolution of natural justice into the broader 'duty to act fairly' reflects its adaptation to modern administrative contexts, where the content of fairness depends on factors like the nature of the decision and its impact on individuals. The two tests for apparent bias, though debated, aim to safeguard impartiality. The right to a fair hearing protects individuals from arbitrary decisions affecting their rights or legitimate expectations, and its codification in the European Convention on Human Rights underscores its enduring importance. Natural justice is distinct from natural law or natural rights philosophy, serving as a practical procedural doctrine rather than a moral or philosophical ideal.

Did You Know?

• Natural justice is technical terminology for the rule against bias (nemo iudex in causa sua) and the right to a fair hearing (audi alteram partem).
• Actual bias is very difficult to prove in practice, whereas imputed bias results in automatic disqualification without investigation into likelihood or suspicion of bias.
• In Europe, the right to a fair hearing is guaranteed by Article 6(1) of the European Convention on Human Rights, which complements the common law.
• The term natural justice is often retained as a general concept but has largely been replaced and extended by the general 'duty to act fairly' in jurisdictions such as Australia and the United Kingdom.

The Core Distinction: Natural Rights vs. Legal Rights

Philosophers have long drawn a sharp line between two categories of entitlement. Natural rights are conceived as universal, fundamental, and inalienable — they do not hinge on the statutes, customs, or decrees of any particular government or culture. They cannot be repealed by human legislation, though a person may forfeit their enjoyment through actions that infringe upon others. Natural law, in this framing, is simply the law that governs these inherent entitlements. Legal rights, by contrast, are granted by a specific legal system and remain subject to modification, repeal, or restriction by human authority. The concept of positive law sits alongside this second category. This bifurcation matters because it places certain human claims beyond the reach of any state or international body, while acknowledging that the vast machinery of everyday legal life operates in a different register entirely.

A Long Philosophical Lineage from Antiquity to the Modern Era

The idea that certain rights are inherent and inalienable stretches back at least to the Stoics of late Antiquity. Roman philosopher Cicero gave the notion of natural law explicit voice, and Saint Paul later alluded to it in his writings. The Age of Enlightenment repurposed natural law as a weapon against the divine right of kings, offering it as an alternative foundation for social contracts, positive law, and classical republicanism. Yet the same idea was simultaneously wielded by others to question the legitimacy of every such political establishment.

Competing Inventories and the Ancient Rights Debate

Philosophers and statesmen have never agreed on a single catalogue of natural rights. John Locke championed life, liberty, and property; H. L. A. Hart insisted that if any rights exist at all, liberty must be among them, since all others depend upon it; T. H. Green framed it as a right to free life. Thomas Jefferson, while drawing on Locke's framework, swapped property for pursuit of happiness in the Declaration of Independence. Immanuel Kant derived natural rights through pure a priori reasoning, whereas the Declaration grounded them in a Creator's endowment. The question of whether such rights existed in antiquity has also been contested. Alasdair MacIntyre and Benjamin Constant argued the ancients lacked any concept of individual rights. Yet more recent scholarship, including Stephen Kinzer's account of Zoroastrian Iran, points to inalienable rights to enlightened leadership, and the Epicurean Principal Doctrines describe a contractarian ethics in which humans enjoy personal sovereignty and consent to revisable laws.

Enduring Tensions: Natural Rights, Human Rights, and Rejection

The relationship between natural rights and the modern vocabulary of human rights remains contested. Natural rights were traditionally understood as exclusively negative rights — claims against interference — while human rights also encompass positive rights that demand active provision. Even under a natural-rights framework, the two terms may not be perfectly synonymous. Some thinkers reject the distinction entirely, treating human rights as a successor concept untethered from natural law, natural theology, or Christian doctrine. The philosophical divide runs deep: Jeremy Bentham dismissed natural rights as simple nonsense, and some philosophers maintain that legal rights are the only rights that genuinely exist. Jusnaturalism offers another thread, holding that legal norms must follow a universal human knowledge, rendering enacted laws that contradict such knowledge unjust and illegitimate — though some jusnaturalists trace the source of natural law to a natural order rather than a divine mandate. The concept's religious associations and perceived incoherence continue to fuel rejection.

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