‘Judicial review is the exercise of the court’s inherent power at common law to determine whether action is lawful or not; in a word to uphold the rule of law.’ (R v HM the Queen in Council, exparte...

‘Judicial review is the exercise of the court’s inherent power at common law to determine whether action is lawful or not; in a word to uphold the rule of law.’ (R v HM the Queen in Council, exparte Vijayatunga [1988] QB 322, (Simon Brown J))

Does this statement fully summarise the function of the judicial review jurisdiction within the UK Constitution?