Business Environment Bow Lane v Deanwater Estates Ltd [2009] EWHC 2014 (Ch), [2009] All ER (D) 363
A costs judge could not, in circumstances where a claimant had picked up one or more costs orders in its favour on the way to a trial, but failed very badly at the trial (for example, due to an exaggerated claim), assess those costs at nil on the basis that they were not, as it transpired, reasonably incurred because they had been incurred in an action that sought an exaggerated sum which should never have been claimed.