NCJ Number
167485
Journal
Polygraph Volume: 25 Issue: 4 Dated: (1996) Pages: 266-278
Date Published
1996
Length
13 pages
Annotation
The use of statement analysis to discern the truth of statements given by potential suspects is described.
Abstract
Statement analysis is an aid that can be used to obtain a confession; it is not an end in itself. In statement analysis, investigators examine words, independent of case facts, to determine deception. They also remain alert for information omitted and question why the suspect may have omitted information. Investigators then analyze the clues the suspect has unintentionally provided and use this insight during the subsequent interview. Statement analysis follows a two-step process. First, investigators determine what is typical of a truthful statement, the norm. Next, they look for any deviation from this norm in content and quality. The four areas analyzed include the parts of speech (pronouns, nouns, and verbs), extraneous information, lack of conviction, and the balance of the statement. Investigators inexperienced in statement analysis will find it easier to begin by examining written statements rather than spoken statements. They can make transcripts of oral statements or have suspects write a statement that details that they did from the time they woke up until the time they went to bed. Figures and footnotes