Its shares have been in freefall since it announced it would write off bid costs as and when they arose, rather than deferring them when it was named as preferred bidder. Capita, another big PFI contractor, is also under pressure to clarify its accounting policies. The outsourcing group, criticised by Home Office Minister Lord Falconer over its handling of a £400m contract to run the criminal records bureau, tried on Friday to reassure investors that all was well, promising a full statement on July 25.