Saunders, head of the bank's principal finance unit, arranged the financing for Boxclever, a TV rentals business, in 1999. One area of the inquiry is whether the deal went ahead with sufficient collateral-The risk-management procedures at WestLB have changed since the Boxclever deal, which accounted for a £430m writedown in 2002, driving the bank's provisions for risk up to £1.9bn last year.