See p. 152 of The Lie Behind the Lie Detector (3rd ed.).

I don't have much detail to add, though perhaps I could clarify what is meant by a "chart presentation." It's the presentation of a series of relevant and irrelevant questions during which a polygraph chart is "collected" (recorded), whether on paper or computer media. A polygraph examination whether CQT or R/I typically consists of several series of questions, during each of which a polygraph chart is collected.

As noted in Chapter 3, sometimes, the polygrapher will throw in a "control" question of sorts. It might be a probable-lie "control" question, or it might consist of the polygrapher mis-stating one of the irrelevant questions. Or it might be an unreviewed question, such as "Do you remember my name?" If any such "control" question is added to a question series, it would be beneficial to show a strong reaction to it.

The Keeler Polygraph Institute in Chicago, which taught the Relevant/Irrelevant technique and which trained the NSA's and CIA's first polygraph operators, included announcements of the test's beginning and end as a sort of "control" stimulus. It is unclear whether the CIA and/or NSA are using this today, but if the examination begins with an announcement such as, "The test is about to begin" and/or ends with an announcement that, "The test is now over," it would be beneficial to show a reaction.

unknown wrote on Aug 30^th, 2003 at 5:09pm:


thanks for posting back.  I guess I am confused by this statement:
producing responses to two differing groups of two relevant questions \

the way I read it is that I should produce responses to relevant questions on purpose?  That does nto seem to make sense

Quote:


thanks for the reply.  After checking into it it turns out that they do indeed state the beginning and end of each set of questions, and that the chart is already running prior to these statements.  So producing reactions to these statements coupled with the behavioral countermeasures should suffice.

Thanks for the book, read it 6 times