law Definition, Systems, Institutions, & Fields

In common law legal systems, decisions by courts are explicitly acknowledged as “law” on equal footing with statutes adopted through the legislative process and with regulations issued by the executive branch. The “doctrine of precedent”, or stare decisis (Latin for “to stand by decisions”) means that decisions by higher courts bind lower courts, and future decisions of the same court, to assure that similar cases reach similar results. Many Muslim countries have developed similar rules about legal education and the legal profession, but some still allow lawyers with training in traditional Islamic law to practice law before personal status law courts. In China and other developing countries there are not sufficient professionally trained people to staff the existing judicial systems, and, accordingly, formal standards are more relaxed.

• The laws of good business say you shake hands and make eye contact when you leave.
• Today, countries that have civil law systems range from Russia and Turkey to most of Central and Latin America.
• Some common law systems, including Australia, are moving away from the idea of consideration as a requirement.
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• Similarly, traditional Chinese law gave way to westernisation towards the final years of the Qing Dynasty in the form of six private law codes based mainly on the Japanese model of German law.
• Iran has also witnessed a reiteration of Islamic law into its legal system after 1979.

In addition a lawyer may become a legal researcher who provides on-demand legal research through a library, a commercial service or freelance work. Many people trained in law put their skills to use outside the legal field entirely. The executive in a legal system serves as the centre of political authority of the State. In a parliamentary system, as with Britain, Italy, Germany, India, and Japan, the executive is known as the cabinet, and composed of members of the legislature.

Their ‘abstraction principle’ means that the personal obligation of contract forms separately from the title of property being conferred. When contracts are invalidated for some reason (e.g. a car buyer is so drunk that he lacks legal capacity to contract) the contractual obligation to pay can be invalidated separately from the proprietary title of the car. Unjust enrichment law, rather than contract law, is then used to restore title to the rightful owner. Sociology of law is a diverse field of study that examines the interaction of law with society and overlaps with jurisprudence, philosophy of law, social theory and more specialised subjects such as criminology.

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In presidential systems, the executive acts as both head of state and head of government, and has power to appoint an unelected cabinet. Under a presidential system, the executive branch is separate from the legislature to which it is not accountable. Definitions of law often raise the question of the extent to which law incorporates morality. John Austin’s utilitarian answer was that law is “commands, backed by threat of sanctions, from a sovereign, to whom people have a habit of obedience”. Natural lawyers on the other side, such as Jean-Jacques Rousseau, argue that law reflects essentially moral and unchangeable laws of nature. The concept of “natural law” emerged in ancient Greek philosophy concurrently and in connection with the notion of justice, and re-entered the mainstream of Western culture through the writings of Thomas Aquinas, notably his Treatise on Law.

Land Law forms the basis for most kinds of property law, and is the most complex. It concerns mortgages, rental agreements, licences, covenants, easements and the statutory systems for land registration. Regulations on the use of personal property fall under intellectual property, company law, trusts and commercial law.

Canon law is only in use by members of the Catholic Church, the Eastern Orthodox Church and the Anglican Communion. Common law originated from England and has been inherited by almost every country once tied to the British Empire (except Malta, Scotland, the U.S. state of Louisiana, and the Canadian province of Quebec). In medieval England, the Norman conquest the law varied shire-to-shire, based on disparate tribal customs. The concept of a “common law” developed during the reign of Henry II during the late 12th century, when Henry appointed judges that had authority to create an institutionalised and unified system of law “common” to the country. The next major step in the evolution of the common law came when King John was forced by his barons to sign a document limiting his authority to pass laws.