Law is a system of rules claiming general validity. It is created by legislators and, if needed, put in force by legislative authority or court decisions. As such, it is the total sum of all the standards, which are classified according to their national or international scope, forming a global legal systems and/or international law. Jurisprudence, particularly the legal theory, divides the law into three basic fields of law based on methodological point of view into three major areas: public law, private law and criminal law

As contrary to morality and custom, the law - especially criminal law – uses penalties in cases that rules of conduct are not met. Depending on the social order and political opinion law, morals and customs may vary greatly.

Law and morality often coincide, but not always. Law relates primarily to the external behavior of man, while the morality applies the sentiments of the people. The law differs from morality that it is enforced by a standardized procedure as authorized by the institutions of justice. Moral behavior or rules are only enforceable, where it is required by law. In many cases law is based on a moral judgment. But there are also legal principles that have a neutral background as to morality; for example, the law whether one has to drive on left or right side of the road. Even a custom as a dress code can be legally binding: Judges and lawyers are sometimes required by law to wear a robe; women from Islamic countries may be required by law in their homeland to wear the headscarf.

Law is divided into legal subjects such as: international law, constitutional and administrative law, criminal law, contract law, tort law, property law, equity and trusts, and some further disciplines. The enforced of the law is taken care by legal institutions such as judiciary, legislature, executive, and legal profession.

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