Judicial review is the procedure which allows the High Court to review decisions made by public bodies.
The procedure can be used where:-
an official or body has acted in a way that no reasonable official or body should have acted - see; or
an official or body has acted in a way that exceeds its powers (ultra vires); or
an official or body has failed to perform a mandatory public duty; or
an official or body has misunderstood or misinterpreted the law or its own legal powers (error of law). This can include failing to give adequate reason for a decision where there is a duty to do so or introducing a policy which has no statutory basis; or
a decision was taken without a party having the opportunity to present her/his case (breach of natural justice); or
a decision taken by an official or body was biased, for example, where one of the parties making the decision had a direct financial interest, or had prejudged the case (breach of natural justice); or
an official or body has exercised its discretion improperly, for example, it has failed to take account of relevant matters or took into account irrelevant matters, or a decision was taken without supporting evidence; or
an official or body did not make a decision when it should have done so, for example, it only followed an existing policy without taking into account the merits of an individual case; or
there is incompatibility with European law (especially where the actions of the official or body are incompatible with the European Convention on Human Rights or the Human Rights Act 1998).