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.
Universal jurisdiction
Amnesty International argues that since the end of the Second World War over fifteen states have conducted investigations, commenced prosecutions and completed trials based on universal jurisdiction for the crimes or arrested people with a view to extraditing the persons to a state seeking to prosecute them. These states include: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Israel, Mexico, Netherlands, Senegal, Spain, Switzerland, the United Kingdom and the United States. Amnesty writes: