Lawyers for oil traders Trafigura finally abandoned attempts to keep secret a scientific report about toxic waste dumping in west Africa…The Minton report, commissioned in 2006 from the London-based firm's scientific consultants, said that based on the "limited" information they had been given Trafigura's oil waste, dumped cheaply the month before in a city in Ivory Coast, was potentially toxic, and "capable of causing severe human health effects"…The author of this initial draft study, John Minton, of consultants Minton, Treharne & Davies, said dumping the waste would have been illegal in Europe…Trafigura said the report was only preliminary and had proved to be inaccurate.