List of national legal systems
Common law is currently in practice in Ireland, most of the United Kingdom (England and Wales and Northern Ireland), Australia, New Zealand, Bangladesh, India (excluding Goa), Pakistan, South Africa, Canada (excluding Quebec), Hong Kong, the United States (on a state level excluding Louisiana), and many other places. In addition to these countries, several others have adapted the common law system into a mixed system. For example, Nigeria operates largely on a common law system, but incorporates religious law.
Common law
Scotland shares the Supreme Court, with England, Wales and Northern Ireland for civil cases; the court's decisions are binding on the jurisdiction from which a case arises but only influential on similar cases arising in Scotland. This has had the effect of converging the law in certain areas. For instance, the modern UK law of negligence is based on "Donoghue v Stevenson", a case originating in Paisley, Scotland.