The Adventures of the Infallible Godahl by Frederick Irving Anderson

The master criminal who can't be caught
The Infallible Godahl is a self-proclaimed master criminal – with the most perfect criminal mind ever devised whose Watson is the writer Oliver Armiston. It is Godahl's credo that, if he thinks a problem through to its logical end, he will never get caught or more precisely – " not only never been caught, but never even been suspected of a crime."
This volume collects the six Godahl stories.
"Frederick Irving Anderson… is one of the distinguished short-story writers in the history of the American short story in general, and the short crime story in particular." – Otto Penzler