“In that, Doctor, you will find yourself in agreement with every criminal in the country,” said my friend, quietly.

“So far as your efforts are directed towards the suppression of crime, sir, they must have the support of every reasonable member of the community, though I cannot doubt that the official machinery is amply sufficient for the purpose. Where your calling is more open to criticism is when you pry into the secrets of private individuals, when you rake up family matters which are better hidden, and when you incidentally waste the time of men who are more busy than yourself. At the present moment, for example, I should be writing a treatise instead of conversing with you.”