Crime Distinguished from Law-breaking�The General Liability to Crime�Preventive Agencies�Plan of the Work�Different Types of Murders and Robberies�Crime Developed by Civilisation�The Police the Shield and Buckler of Society�Difficulty of Disappearing under Modern Conditions�The Press an Aid to the Police: the Cases of Courvoisier, M�ller, and Lefroy�The Importance of Small Clues��Man Measurement� and Finger-Prints�Strong Scents as Clues�Victims of Blind Chance: the Cases of Troppmann and Peace�Superstitions of Criminals�Dogs and other Animals as Adjuncts to the Police�Australian Blacks as Trackers: Instances of their Almost Superhuman Skill�How Criminals give themselves Away: the Murder of M. Delahache, the Stepney Murder, and other Instances�Cases in which there is Strong but not Sufficient Evidence: the Great Coram Street and Burdell Murders: the Probable Identity of �Jack the Ripper��Undiscovered Murders: the Rupprecht, Mary Rogers, Nathan, and other Cases: Similar Cases in India: the Button Crescent Murder: the Murder of Lieutenant Roper�The Balance in Favour of the Police
