Exams given earlier in the day are generally more productive than those given later. For a review of the research involving polygraph validity and reliability, obtain a copy of The Accuracy and Utility of Polygraph Testing. Washington, D.C. U.S. Department of Defense, 1984. Polygraph exams are charged by the hour. The more in-depth or difficult the exam, the longer it is likely to last.
Complex exams can take several hours.
Travel fees are charged for exams given at locations other than our office. The Employee Polygraph Protection Act of 1988 established federal guidelines for polygraph exams given to employees. General losses and shrinkage are not considered specific under these guidelines, and the test questions must be limited to the specific property lost. However, access alone is not sufficient. The employer must make a request in writing to each employee that the employer would like to have tested.