Provides interviewers and interrogators with a structured format to learn the interrogation. The approach should allow the interviewer to move from preliminary accusation to ultimate confession by applying practical rules to the process.
Together with the Reid technique, W-Z provides some of the best training in interrogation available today. The book covers most of what one needs to know, but is probably best used as a reference - practical training in this field is rather more important.
The only problem I have with W-Z is that there is clearly pseudo-science lurking at the edges of what they teach. Neuro-liguistic programming is bunk, but they reference it in the book - and they did as well during the advanced cold-interviewing seminar I attended two weeks ago.
I know this is not your normal recreational reading, but it was handy, and actually, quite fascinating. I find that I listen to conversations quite differently now. Probably handy for anybody who has teenagers! LOL