Our goal with each test is ultimate accuracy. A professional
polygraph test consist of a
pre-test interview (+-3/4 hour), the
in-test phase (+- 1/2 hour) and the
post-test interview (+- 1/4 hour) therefore a time allocation of 1 1/2 hours per test.
The purpose of the pre-test is to conduct a highly structured interview that establishes the foundation of the entire examination.
- The Examiner will inform each subject of their academic qualifications and practical experience.
- The examinees understand that they are not guilty of any offence and have the unqualified right to consult with council prior to the examination.
- The examinees take the test once they have consented to be examined.
- The examinees physiological and psychological suitability to undergo the test will be evaluated.
- An objective appraisal of the examinees personality through verbal and nonverbal responses to a variety of questions will be conducted.
- The proper psychological conditioning of each examinee will be ensured so as to obtain clear and conclusive test results.
- The examinees will be informed of the nature and characteristic of the instrument and examination.
- All question formulation will be reviewed with the subjects at length, to ensure that the subjects clearly understand the questions that we intend to put to them.
- The proceedings will be recorded on video and audio, as prescribed by the American Polygraph Association and South African Polygraph Association.
An Acquaintance test will be conducted on the subjects before the main tests. Then a further three tests will be conducted on each of the subjects for the purpose of collecting data for scoring. The latest
Lafayette digital polygraph system in conjunction with the one of the
American Polygraph Association approved Question Technique will be utilised by the examiner when testing the subjects.
After the test the examiner analyses the
polygraph tests (the recorded reactions) by means of a numerical quantification system. The subject will be informed of the examination results once a decision has been made and afforded the opportunity to respond on the results.
Our tests are subject to a process of quality control. This is a unique part of our service and is done to ensure the highest degree of reliability of our test results.