Various Authors

But it is important to assuage the fear of denigration which afflicts many people when first interrogated by making it clear that the individuality of the interrogatee is recognized.

But the assumption of hostility -- or at least the use of pressure tactics at the first encounter -- may make difficult subjects even out of those who would respond to recognition of individuality and an initial assumption of good will

The purpose, then, is not to teach the reader how to be a good interrogator but rather to tell him what he must learn in order to become a good interrogator.