Judicial Activism in UK Law

Like my noble and learned friend Lord Diplock, I believe that the law relating to judicial review has now reached the stage where it can be said with confidence that, if the subject matter in respect of which prerogative power is exercised is justiciable, that is to say if it is a matter upon which the court can adjudicate, the exercise of the power is subject to review in accordance with the principles developed in respect of the review of the exercise of statutory power.

By "irrationality" I mean what can by now be succinctly referred to as "Wednesbury unreasonableness" ( Associated Provincial Picture Houses Ltd. v. Wednesbury Corporation [1948] 1 K.B. 223). It applies to a decision which is so outrageous in its defiance of logic or of accepted moral standards that no sensible person who had applied his mind to the question to be decided could have arrived at it.

Thus far this evolution has established that executive action will be the subject of judicial review on three separate grounds. The second is where it exercises a power in so unreasonable a manner that the exercise becomes open to review upon what are called, in lawyers' shorthand, Wednesbury principles ( Associated Provincial Picture Houses Ltd. v. Wednesbury Corporation [1948] 1 K.B. 223).

If the executive instead of acting under a statutory power acts under a prerogative power and in particular a prerogative power delegated to the respondent under article 4 of the Order in Council of 1982, so as to affect the rights of the citizen, I am unable to see, subject to what I shall say later, that there is any logical reason why the fact that the source of the power is the prerogative and not statute should today deprive the citizen of that right of challenge to the manner of its exercise which he would possess were the source of the power statutory.

But the function of independent judges charged to interpret and apply the law is universally recognised as a cardinal feature of the modern democratic state, a cornerstone of the rule of law itself. The Attorney General is fully entitled to insist on the proper limits of judicial authority, but he is wrong to stigmatise judicial decision-making as in some way undemocratic.

The hall marks of the relationship were essentially that there should be a degree of mutual inter-dependence, of the sharing of lives, of caring and love, of commitment and support. In respect of legal relationships these are presumed, though evidently are not always present as the family law and criminal courts know only too well. In de facto relationships these are capable, if proved, of creating membership of the tenant's family.