My Lords, as a result of the Competition Commission's detailed report on supermarkets in 2000, the largest four supermarkets signed legally binding undertakings to comply with a code of practice governing relations with their suppliers. Last week, the Office of Fair Trading announced that it was embarking on a review of the code and would write to suppliers' organisations and the supermarkets themselves, requesting views on how the code has worked in practice. If any supplier has evidence that a signatory to the code of practice is not meeting the requirements of the code, he or she should approach the Office of Fair Trading.