The rule of law is one of the fundamental principles of UK' s unwritten or uncodified constitution .The key idea of the rule of law is that the law should apply equally to all ,rulers and ruled alike. This ,in the words of the 19-century constitution expert ,A.V.Diecy ensures a ‘ government of law' and not a ‘government of men ‘. The alternative to the rule of law is there for arbitrary government. In this way, the rule of law establishes the relationship between government and the people.
This implies that every one is bound by the law. The law applies to ministers and public officials as well as other members of society. This is supposed to ensure that public officials use their power reasonably and do not exceed the limits placed on its use. This aspect of the rule of law is upheld through administrative law and by the practice of judicial review.
How ever, concerns have been expressed about the extent to which this principle applies in the UK.
Many of the powers of the prime minister and other ministers are based on the Royal prerogative, which is not subject to judicial oversight.
As parliament is sovereign, it can make, unmake and amend any law it whishes and son on, in that sense, it is ‘above ‘the law.
The principle of parliamentary privilege means the MPs and peers are not subject to legal restrictions on what they can say in parliament
The Queen, as head of the legal system, is not properly subject to the law.
All these aspects can undermine ‘No one is ‘above' the law .moreover they are not illegal actions and can not be prosecuted as an illegal action.