The procedure of the common law courts had developed along highly technical and stylised lines. For example, to bring an action in the common law courts a litigant had to file a "writ" chosen from a set of standard forms. The court would only recognise certain "forms of action", and this led to the widespread use of legal fictions, with litigants disguising their claims when they did not fit into a standard recognised "form". The emphasis on rigid adherence to established forms led to substantial injustice.