Most polygraph examinations take between 40 and 90 minutes.
The total time depends on several factors:
The complexity of the issue
The number of questions
The clarity of the information provided
The pre-test discussion
Time includes:
The pre-test interview
Question review
The examination phase
Post-test explanation
Shorter tests usually involve simple and focused matters.
Longer tests involve more detailed discussions and question review.
Each examination follows the same professional structure.
The examiner does not rush any part of the process.
Related polygraph service
Employers investigating workplace incidents can schedule a structured examination through our workplace polygraph testing service in Gauteng.