Look at these, for instance.

These are the tracks of a man with a wooden leg"-- Kent nodded--"in all probability a sailor, newly landed from Java, carrying a Singapore walking-stick, and with a tin-whistle tied round his belt." "Yes, I see that," said Kent thoughtfully.

"The weight of the whistle weighs him down a little on the right side." "Do you think, Mr.Kent, a sailor from Java with a wooden leg would commit a murder like this ?" asked the Inspector eagerly.

"Would he do it ?" "He would," said the Investigator.

"They generally do--as soon as they land." The Inspector nodded.