Barbara may refer to:

Common law (also known as case law or precedent) is law developed by judges through decisions of courts and similar tribunals rather than through legislative statutes or executive branch action. A "common law system" is a legal system that gives great precedential weight to common law, on the principle that it is unfair to treat similar facts differently on different occasions. The body of precedent is called "common law" and it binds future decisions. In cases where the parties disagree on what the law is, a common law court looks to past precedential decisions of relevant courts. If a similar dispute has been resolved in the past, the court is bound to follow the reasoning used in the prior decision (this principle is known as stare decisis). If, however, the court finds that the current dispute is fundamentally distinct from all previous cases (called a "matter of first impression"), judges have the authority and duty to make law by creating precedent. Thereafter, the new decision becomes precedent, and will bind future courts.

The Commonwealth of Nations, normally referred to as the Commonwealth and formerly known as the British Commonwealth, is an intergovernmental organisation of 54 independent member states. All members except Mozambique and Rwanda were part of the British Empire, out of which the Commonwealth developed.

The member states cooperate within a framework of common values and goals, as outlined in the Singapore Declaration. These include the promotion of democracy, human rights, good governance, the rule of law, individual liberty, egalitarianism, free trade, multilateralism and world peace. The Commonwealth is an intergovernmental organisation in which countries with diverse social, political and economic backgrounds are regarded as equal in status, not a political union.

Activities of the Commonwealth are carried out through the permanent Commonwealth Secretariat, headed by the Secretary-General, and biennial meetings of Commonwealth Heads of Government. The symbol of their free association is the Head of the Commonwealth, which is a ceremonial position currently held by Queen Elizabeth II. Elizabeth II is also monarch, separately and independently, of 16 Commonwealth members, which are known as the "Commonwealth realms".

Common may refer to:

The Law is a system of rules and guidelines which are enforced through social institutions to govern behavior. Laws are made by governments, specifically by their legislatures. The formation of laws themselves may be influenced by a constitution (written or unwritten) and the rights encoded therein. The law shapes politics, economics and society in countless ways and serves as a social mediator of relations between people.

A general distinction can be made between civil law jurisdictions (including Canon and Socialist law), in which the legislature or other central body codifies and consolidates their laws and common law systems (including Sharia), where judge-made binding precedents are accepted. In some countries, religion may inform the law; for example, in jurisdictions that practice Islamic law, Jewish law or Canon law.

The adjudication of the law is generally divided into two main areas. Criminal law deals with conduct that is designated dishonest by the government and in which the guilty party may be imprisioned or fined. Civil law (not to be confused with civil law jurisdictions above) deals with disputes between individuals or organizations, in which compensation may be awarded to the wronged litigant.