The Financial Services Authority has been urged to review its operating procedures after it was found to have acted unlawfully in its use of legally privileged material during an enforcement investigation. The regulator had successfully applied to the High Court for its own nominated administrators, PricewaterhouseCoopers (PwC), to take control of investment company Keydata Investment Services, which went into administration in June 2009, leaving 30,000 UK investors facing losses totalling ?450m. read more