The British constitution is based on Parliamentary sovereignty and has a dualist view of international law: international treaties do not become part of UK domestic law unless they are incorporated into UK law by an Act of Parliament. This means that if the Act were repealed, any EU law (unless it has been transposed into British legislation) would, in practice, become unenforceable in the United Kingdom and Gibraltar, and the powers delegated by the Act to the EU institutions would return to the Parliament of the United Kingdom. This was attempted to made clear to be the law in the United Kingdom by the Conservative–Liberal Democrat Coalition with the inclusion of the which was passed by the UK Parliament when the UK was still a EU member state.