The Jurisdictions of the United Kingdom comprise three legal jurisdictions of the United Kingdom of Great Britain and Northern Ireland, namely: * England & Wales, * Scotland, and * Northern Ireland. Although Scotland and Northern Ireland form part of the United Kingdom and share Westminster as a primary legislature, they have separate legal systems. (Even though Scotland became part of the UK over 300 years ago, Scots law has remained remarkably distinct from English law). The UK's highest civil appeal court is the Supreme Court of the United Kingdom, whose decisions are binding on all three UK jurisdictions, as in Donoghue v Stevenson, a Scots case that forms the basis of the UK's law of negligence.