Edgar Wallace,
The Red Book Magazine, Volume 31…
(1918)
“ THE bombshell which Lord Exenham threw into the realms of criminal investigation will hardly be forgotten by this present generation. It is no secret that the spring of 1914 brought a crisis in police-affairs all over the world. From Yarra-Yarra to Aberdeen, from Scotland Yard to Hongkong, police chiefs sat back and gasped, seeing the end of the most elaborate and perhaps the safest system that had ever been devised by the ingenuity of honest men for the detection of the professional criminal. ”
