"It is an evidence of the unfitness of the detective for his
profession when he is compelled to resort to the use of
intoxicating liquors; and, indeed, the strongest kind of
evidence, if he continually resorts to this evil practice.
The detective must not do anything to farther sink the
criminal in vice or debauchery, but, on the contrary, must
seek to win his confidence by endeavoring to elevate him,
etc."

"Kindness and justice should go hand in hand, whenever it is
possible, in the dealings of the detective with the criminal.
There is no human being so degraded but there is some little
bright spark of conscience and of right still existing in
him."

Last:

"The detective must, in every instance, report everything
which is favorable to the suspected party, as well as
everything which may be against him."

The man who penned these principles had had the safety of
Abraham Lincoln in his keeping; and these simple statements
are the best refutation of the baseless assertions above
referred to.

It may be that in those days the detection of crime was a bit
more elementary than at the present time. One can hardly
picture a modern sleuth delaying long in an attempt to
evangelize his quarry, but these general principles are the