"…. where the employment has such an overwhelmingly closer connection with Britain and with British employment law than with any other system of law that it is right to conclude that Parliament must have intended that the employees should enjoy protection from unfair dismissal. This depends upon a combination of factors. First, as a sine qua non, their employer was based in Britain; and not just based here but the Government of the United Kingdom. This is the closest connection with Great Britain that any employer can have, for it cannot be based anywhere else. Second, they were employed under contracts governed by English law; the terms and conditions were either entirely those of English law or a combination of those of English law and the international institutions for which they worked. Although this factor is not mentioned in Lawson v Serco Ltd., it must be relevant to the expectation of each party as to the protection which the employees would enjoy (paragraph 16)."