" Galsworthy made one of his characters—a lawyer, I think—say that once you have set in motion the chariot wheels of Justice, you can do nothing at all to arrest or deflect their progress. Lady O'Callaghan, that is the exact truth. You, very properly, decided to place this tragic case in the hands of the police. In doing so you switched on a piece of complicated and automatic machinery which, once started, you cannot switch off. As the police officer in charge of this case I am simply a wheel in the machine. I must complete my revolutions. "