A polygraph examination is a structured process that records physiological activity while an examinee answers a series of carefully developed and previously reviewed questions. The recorded data are then analyzed by the examiner using an established polygraph technique.

A typical examination includes three main phases: a pre-test interview, the data-collection phase, and a post-test phase.

During the pre-test, the examiner explains the process, discusses the issue being examined, and reviews all test questions with the examinee. During the testing phase, polygraph sensors record physiological responses while the previously reviewed questions are asked. Afterward, the examiner analyzes the collected data and discusses or reports the results as appropriate. 

Yes. All questions used during the examination will be reviewed with you beforehand. There are no surprise questions during the testing phase. 

The exact length depends on the type and complexity of the examination. You should generally plan for at least 90 minutes, and many examinations may take approximately two hours or longer. 

Yes. Nervousness before a polygraph examination is common and expected. The examiner will explain the process and review the questions beforehand, which helps reduce uncertainty about what will occur during the examination. 

Tell the examiner about any medical condition, injury, or medication that you believe may affect your ability to participate comfortably in the examination.

Continue taking prescribed medications as directed by your healthcare provider unless that provider tells you otherwise. If there are concerns about whether you are medically able to participate, those concerns should be discussed before the examination is conducted. 

For the best testing conditions:

• Get a normal night’s sleep. 
• Eat normally before the examination. 
• Stay adequately hydrated. 
• Take prescribed medications as directed. 
• Avoid alcohol and illegal/recreational drugs for at least 24 hours before the examination.
• Wear comfortable clothing. 
• Bring any identification or documents the examiner has requested. 

Bring a valid government-issued photo ID and any documents or information the examiner asked you to provide in advance. 

Wear comfortable, appropriate clothing that allows the polygraph components to be placed properly. Avoid excessively tight, restrictive, or bulky clothing.

Generally, no. The examination itself should be conducted privately with the examinee and examiner so distractions can be minimized and confidentiality maintained.

If someone accompanies you to the appointment, they may need to wait outside the examination room or offsite. 

Generally, no. The examination itself should be conducted privately with the examinee and examiner so distractions can be minimized and confidentiality maintained.

If someone accompanies you to the appointment, they may need to wait outside the examination room or offsite. 

Polygraph accuracy depends on factors including the testing technique, the type of examination, the quality of the physiological data, and proper administration and analysis by a trained examiner. SF Bay Polygraph uses established examination procedures and appropriate validated techniques rather than promising a specific outcome or accuracy percentage.

Timing depends on the type of examination and the reporting arrangement established before testing.

In many private examinations, preliminary results may be discussed after the examination once the data have been analyzed. Written reports, when requested or included, may be provided separately.

Polygraph examinations are handled with discretion. Information and results are disclosed according to the examination agreement, applicable law, and any authorization provided by the examinee or referring party.

Before the examination, the examiner will clarify who is authorized to receive the results.

Admissibility varies by jurisdiction and by the circumstances of the case. A court may admit or exclude polygraph evidence depending on applicable law, court rules, stipulations between the parties, and the judge’s ruling.

If the examination relates to litigation or a criminal matter, you should discuss the intended use of the results with your attorney before scheduling.

Employee polygraph testing is regulated by the federal Employee Polygraph Protection Act (EPPA). In most cases, private employers are prohibited from requiring or requesting polygraph examinations from job applicants as part of pre-employment screening. Testing of current employees is permitted only in limited circumstances and is subject to strict legal requirements. Because improper testing may expose an employer to legal liability, employers should consult with an attorney before requesting or scheduling a polygraph examination for an employee.

Fees depend on the type of examination, complexity of the issue, location, preparation required, and any reporting needs.

The total examination fee will be disclosed before an appointment is confirmed.

Once your examination has been reviewed and accepted, you will receive the confirmed fee and secure payment instructions.

A scheduling deposit will be required to reserve the appointment, with the remaining balance paid before the examination begins.

Professional organizations and established referral sources may have separate billing arrangements.

Examinations are normally conducted by appointment. Same-day availability cannot be guaranteed because the examiner may need time to review the circumstances and determine whether the proposed examination is appropriate.

Look for an examiner who has completed formal training through an established polygraph education program and who follows recognized professional standards.

You may also want to consider professional association membership, continuing education, appropriate insurance, use of validated techniques, and whether the examiner maintains appropriate quality-control procedures.

Please contact SF Bay Polygraph directly. The circumstances of each examination are different, and the examiner can help determine whether your specific issue is appropriate for polygraph testing.