The service must have been fairly
well-manned in numbers as well as in quality.
The information brought by a spy should not
be accepted implicitly, but should be tested through another member of the service.
The spy service should be so managed that
the members do not know one another. Let there be corroboration through three sources of
information.
Noteworthy caution that may well be.
followed by present-day administrations in dealing with their Intelligence Officers.
Do not confer any public marks of
appreciation on the members of the Intelligence service; because thereby you would be
disclosing what should be kept from the knowledge of people. |