Call me a cynical old Penguin if you must, but I do not see the convenient shredding all of expense claims and receipts prior to 2005 as good housekeeping. It is blatant cover-up.
Companies and individuals are required by law to keep record for 6 years.
The shredding, ordered by that fat Scottish Trough Pig Speaker Martin in the face of requests under the Freedom Of Information Act, was on the face of it illegal.
Worse, they managed "accidentally" to destroy Tony Bliar's expense claims and receipts even before the massed shredding was ordered, although they were subject to a specific FOI request.
Just coincidence? Do you still believe in Father Christmas?