John Creasey - Gideon's March

In London, that criminal hell hole, a Visit is expected by presidents of United States, France and Germany. So Chief Inspector of Scotland Yard, Gideon, has many problems on his hands to deal with in forthcoming weeks. From keeping local criminals from Manchester, Liverpool and other towns in control, and at the same time solving the death of troublesome young girl. But in meantime curious character prepares attack on the president of France for his own personal reasons which would prove fatal in the end. All in all, interesting police procedural with funny characters.