Under section 11 of the Competition Act, my right hon. Friend has so far referred questions relating to British Rail's London and South-East commuter services, on which the commission has now reported, the Central Electricity Generating Board, and the Severn-Trent water authority. The Director General of Fair Trading has also launched two preliminary investigations under section 3 of the Act into possible anti-competitive practices by Petter Refrigeration Ltd. and T. I. Raleigh Ltd.