The Quadri-Zone's unique Fourth Zone accurately identifies and remedies the major cause (Fear/Hope of Error) of false Positive/Negatives and Inconclusives in Specific-Issues tests. The Quadri-Zone Comparison Technique correctly identified 91 percent of the Innocent as Truthful and 9 percent as Inconclusive, with no errors. It further correctly identified 97 percent of the Guilty as Deceptive and 3 percent as Inconclusive, with no errors. Inconclusives excluded, the Quadri-Zone Comparison Technique was 100 percent accurate in the identification of the Innocent and the Guilty. Inconclusives included, the utility rate was 94 percent. Blind Scoring of polygraph charts showed extremely high correlations for the individual and total chart scores with no errors. 6 tables, 12 references. (Author abstract)