The aim of this research is to establish an independent evidence base for identifying the value and the limits of mediation as an alternative to , or used alongside , judicial review. It has been devised in response to claims made by government and mediation providers that mediation can lead to savings in costs as well as in court time , and provide remedies and solutions to disputes that cannot be offered by the court. These claims will be considered in the specifi c context of judicial review , which not only has an important constitutional function , but , compared to other forms of civil litigation , offers flexibility , low costs and speed.