Edgar Wallace,
The Law of the Four Just Men — The Man Who Loved Music
(1921)
“ I should like to consult our dear friend Poiccart on that subject.""Can he be touched by the law?" asked Manfred. "Is there no way of betraying him?""Absolutely none," said Leon shortly. "The man is a genuine agent. He has the names of some of the best people on his books and they all speak loudly in his praise. The lie that is half a lie is easier to detect than the criminal who is half honest. If the chief cashier of the Bank of England turned forger, he would be the most successful forger in the world. This man has covered himself at every point. ”
