 The U.S. Department of Justice and the U.S. Commodity Futures Trading Commission also came to similar conclusions following their investigations.During this period, Tucker spoke frequently about future risks to stability from shadow banking and clearing houses.While on the Financial Policy Committee, Tucker also argued against the Bank of England being granted powers to intervene in the housing market for its own sake, as that would be highly political, contrasting that with powers that were needed to ensure the resilience of the financial system.