Normally, of course, there are the directories, but they serve only for the established residents who have no reason for concealment. Nor has London any such ‘Bureau de Logis’ as the French police find so useful. Naturally the London police have their own methods, but methods that can only be used within the framework of the law—as when a charge is to be laid or for some other substantial reason. Leonard Glynne evidently wished to remain in concealment, since he kept his address hidden from his family, and yet in order to find him Bobby could ask for no official help. He had no good reason to advance to justify such a request, and besides he felt it important to give as little indication as possible of the lines on which he was working. There was just one clue to start from. Count de Legett had remarked that Leonard’s address was somewhere in that Edgware Road district whereto seemed to lead so many of the threads Bobby was doing his best to follow.
What do You think about Four Strange Women (2015)?