On February 24, 2009, a team of fraud squad investigators and white collar crime officials raided the headquarters of Anglo Irish Bank on St Stephen’s Green in Dublin 2. As the television cameras whirred outside, members of the Garda Bureau of Fraud Investigation and the Office of the Director of Corporate Enforcement searched through the bank.  Anglo was reeling after the dramatic departure of its chief executive David Drumm and chairman Sean FitzPatrick in December 2008 amid allegations of reckless lending and corporate criminality. Almost unnoticed among the mill was the bespectacled, neatly dressed figure of Robert Heron. Heron was…