The Crown is the employer of the public or civil service, and not the ruling political party. The loyalty of the public servant must therefore be to the non political Crown and not to the politicians. This enforces the obligation of the public servant to act within and according to law, and to provide advice not influenced by and indifferent to political considerations. The emergence of a non-partisan public or civil service coincided with the withdrawal of the Crown from political activity and the emergence of the constitutional monarchy as we know it. In advice which was equally applicable to Australia, Walter Bagehot argued that in 1867, to assure popular rule, there were only two constitutional models available to Canada: the British or the American constitutional model. Not only did he think a non- partisan public service did not prevail in the US, he believed it was impossible. The contrast between the public services of the Commonwealth Realms and those of the US remains, even if in Australia in recent years there has been some regrettable blurring in the higher echelons.

Few would doubt that the ideal should remain of an independent public service. A constitutional monarchy is  a fertile field for this because it is designed to allow an easy transfer of political power, the prime minister being untenured and at all times dependent on the confidence of the lower house.