Feudal and Pre-Modern Japanese Law
Introduction
Japan’s legal history before the Meiji Restoration spans over a millennium and encompasses the Chinese-inspired Ritsuryō system, the customary law of the samurai, the centralized feudal law of the Tokugawa Shogunate, and local customs governing commoners. Understanding this heritage is essential to appreciating the character of the modern Japanese legal system and the challenges of legal modernization.
The Ritsuryō System (7th–12th Centuries)
The Ritsuryō system was Japan’s first comprehensive legal framework, modeled on the legal codes of Tang China. Two principal codes established it: the Taihō Code (701) and the Yōrō Code (718, effective 757). Ritsu (penal law) defined crimes and punishments on Confucian principles; ryō (administrative law) organized the imperial government, establishing the Council of State (Daijō-kan), eight ministries, and provincial administration. The system also addressed family law, property law, inheritance, and taxation. It declined after the late Heian period as imperial authority weakened and local military lords gained power, though the codes retained residual symbolic authority for centuries.
The Kamakura Shogunate and the Jōei Code (1185–1333)
The Kamakura Shogunate (1185–1333) marked the feudal age’s beginning, governing the warrior class through military law (buke-hō). The landmark Goseibai Shikimoku (1232), or Jōei Code, promulgated by Hōjō Yasutoki, consisted of 51 articles addressing landholding, inheritance, criminal law, and judicial procedure. Its significance is threefold: the first systematic codification of samurai law distinct from the Ritsuryō system, the principle that judgments should be based on written rules rather than arbitrary discretion, and a framework for land dispute resolution that remained influential for centuries.
The Muromachi Period (1336–1573)
The Muromachi Shogunate continued samurai law development through the Kenmu Shikimoku (1336). Legal authority decentralized as provincial lords (shugo-daimyō) administered law in their domains according to both shogunal law and local custom. During the Sengoku (Warring States) period (1467–1600), individual daimyō enacted house laws (kahō or bunkoku-hō), including the Imagawa Kana Mokuroku (1526) and Kōshū Hatto, addressing criminal justice, landholding, family relations, and military organization.
The Tokugawa Shogunate (1603–1868)
The Tokugawa Shogunate established a centralized feudal legal system characterized by a status-based order: samurai, farmers, artisans, and merchants were governed by different legal rules. The Buke Shohatto (Laws for the Military Houses, first promulgated 1615, regularly revised) regulated daimyō conduct through the sankin kōtai system of alternate attendance at Edo, restrictions on castle construction, and prohibitions on unauthorized marriage alliances. The shogunate also enacted laws for the imperial court (Kinchu Narabi ni Kuge Shohatto), temples, and the general population through the machi-bure decree system.
Legal Pluralism in the Edo Period
The system was characterized by legal pluralism: different rules applied to different classes and jurisdictions. The shogunate’s direct administration governed the shogunal domain (tenryō), while the domains (han) of the daimyō administered their own laws. Samurai were subject to shogunal institutions; commoners in shogunal domains were subject to magistrates (machi-bugyō in cities, daikan in rural areas). Village-level disputes were resolved through naisai — mediation by headmen and elders emphasizing reconciliation — which has been cited as the origin of Japan’s “harmony” (wa) tradition in dispute resolution.
Neo-Confucianism and Legal Thought
Tokugawa legal thought was deeply influenced by Neo-Confucianism, adopted as the shogunate’s official ideology. It emphasized social hierarchy, filial piety, moral cultivation of the ruler, and the primacy of ethical education over legal coercion. The ideal was rule by moral example (tokuchi) rather than penal law (keibatsu), reinforcing a preference for informal dispute resolution and skepticism toward litigation.
The Sakoku Period and Dutch Learning
Japan’s sakoku (closed country) policy (1639–1854) limited Western contact to the Dutch trading post at Dejima. Through Dutch Learning (Rangaku), some scholars became aware of European legal theory, though the influence on Tokugawa practice was negligible.
Conclusion
Japan’s pre-modern legal heritage — the Ritsuryō codes, samurai customary law, Tokugawa centralized feudalism, and village conciliation — left a complex legacy for Meiji modernizers: a population accustomed to hierarchical authority, a non-existent legal profession in Western form, and customary law requiring reconciliation with imported codes.