Statutory provisions apply to the costs of the assessment where costs are assessed under s70 or s71 of the Act. Ordinarily, if the bill or bills are reduced by one fifth or more, the solicitors will be ordered to pay the costs of the detailed assessment. If the bill or bills are reduced by less than one fifth the other party will be ordered to pay the costs of the detailed assessment (see s70(9)). However, if the Costs Judge is satisfied that there are special circumstances relating to the bill or to the assessment, they may make such order about the costs of the assessment as they think fit.