'I have grave doubts about the theory of the transfer of sovereignty as affecting the competence of parliament. In my view, it is a fundamental of the English constitution that parliament is supreme. As a matter of law the courts of England recognise parliament as being omnipotent in all save the power to destroy its own omnipotence. Under the authority of parliament the courts of a territory may be released from their legal duty to obey parliament, but that does not touch on the acceptance by the English courts of all that parliament does. Nor must validity in law be confused with practical enforceability.'