A Comprehensive Guide to Selecting an Expert Polygraph Examiner

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Polygraph examinations have long been used as a tool in various fields, including criminal investigations, employment screenings, and personal matters. The accuracy and reliability of these examinations heavily depend on the competence and expertise of the polygraph examiner. Therefore, it is crucial to choose a reputable and experienced professional who can provide accurate results and maintain the highest ethical standards.

In this article, we will outline the essential factors to consider when hiring a polygraph examiner, ensuring that you make an informed decision and obtain reliable results for your specific needs.

Qualifications and Credentials

Training and Education

A competent polygraph examiner should possess the necessary training and educational background in the field. Look for individuals who have completed recognized polygraph training programs, preferably from reputable institutions. These programs equip examiners with the knowledge and skills required to conduct polygraph examinations accurately.

Additionally, check if the examiner holds certifications or affiliations with respected polygraph associations such as the American Polygraph Association (APA) or the British Polygraph Association (BPA). These affiliations indicate that the examiner has met specific standards and is committed to staying updated with the latest techniques and ethical practices in the field.

Experience and Expertise

Experience plays a vital role in the administration of polygraph examinations. Look for examiners who have a proven track record in conducting polygraph tests effectively. Consider their experience in the particular field relevant to your case, whether it’s criminal investigations, pre-employment screenings, or other specific applications. An experienced examiner will have encountered a wide range of scenarios, enabling them to handle different situations with expertise and accuracy.

Professional Reputation and Ethics

Conduct a Background Check

Before hiring a polygraph examiner, it is essential to conduct a thorough background check. Search for information about the examiner’s professional reputation and history. Look for any complaints or disciplinary actions against the examiner, which may indicate potential issues with their ethics or practices. You can inquire with local law enforcement agencies, legal professionals, or online forums dedicated to discussing polygraph examinations to gather relevant information.

Request References

To gain further insight into an examiner’s credibility and professionalism, ask for references from previous clients or employers. Contact these references and inquire about their experience working with the examiner. Find out if they were satisfied with the services provided, whether the examiner maintained confidentiality, and if they would recommend their services. These references can provide valuable firsthand information to help you make an informed decision.

Technology and Equipment

Stay Updated on Modern Techniques

Polygraph technology and techniques have evolved over the years. Ensure that the examiner you consider stays updated on the latest advancements in the field. Inquire about their familiarity with modern polygraph techniques and methodologies. An examiner who actively seeks to enhance their skills and knowledge demonstrates a commitment to providing accurate and reliable results.

Assess Equipment Quality

The quality and calibration of the polygraph equipment used by the examiner are critical factors that can impact the accuracy of the results. Inquire about the type of equipment the examiner uses and whether it adheres to industry standards. Ask if the equipment is regularly calibrated and well-maintained to ensure accurate readings. Reliable examiners will have no issue discussing their equipment and providing reassurance about its accuracy.

Confidentiality and Privacy

Upholding Client Confidentiality

Confidentiality is of utmost importance when it comes to polygraph examinations. Ensure that the examiner you choose prioritizes client confidentiality and demonstrates a strict adherence to professional ethics. Inquire about their policies and practices regarding the handling and storage of sensitive information. A reputable examiner will have robust protocols in place to protect the privacy of their clients.

Compliance with Privacy Regulations

Different regions may have specific privacy laws and regulations that govern the administration of polygraph examinations. Ensure that the examiner you hire is well-versed in the relevant legal requirements and complies with them. This ensures that the examination process aligns with the law and protects the rights of both the examiner and the examinee.

Cost and Logistics

Discuss Pricing

Pricing for polygraph examinations can vary based on several factors, including the location, the complexity of the examination, and the experience of the examiner. Obtain quotes from multiple examiners and compare their pricing structures. However, keep in mind that the focus should not solely be on finding the cheapest option. Consider the examiner’s qualifications, reputation, and experience alongside the cost to make a well-rounded decision.

Scheduling and Availability

Ensure that the examiner’s availability aligns with your desired timeframe. Discuss the duration of the examination and any specific scheduling requirements you may have. Clarify the location of the examination, whether it will take place at the examiner’s office or if they offer on-site services. By addressing these logistical details, you can plan the examination process more effectively.

Things NOT to do before or during a Polygraph Test:

Here are some things to avoid before and during a polygraph test:

Engaging in Deceptive Practices

Do not attempt to deceive the polygraph examiner or manipulate the test results as it undermines the purpose and accuracy of the examination.

Consuming Alcohol or Drugs

Avoid consuming alcohol or drugs before the polygraph test, as they can interfere with the physiological responses measured during the examination.

Failing to Follow Instructions

It is crucial to listen carefully to the instructions provided by the examiner and follow them precisely to ensure a smooth testing process and accurate results.

Allowing Distractions

Avoid distractions such as mobile phones, loud noises, or interruptions during the polygraph test, as they can affect the examinee’s focus and potentially impact the results.

Engaging in Stressful Activities

Try to minimize participation in strenuous activities or engaging in stressful situations before the polygraph test, as they can impact the examinee’s physiological responses during the examination.

Hesitating to Ask Questions

Do not hesitate to ask the examiner any questions or seek clarification about the test procedure, expectations, or any concerns you may have before or during the examination.

Volunteering Unnecessary Information

While being cooperative is important, avoid providing excessive or unnecessary information to the examiner that is not relevant to the test, as it can potentially complicate the examination process.

Dwelling on Fear or Anxiety

It is natural to feel nervous or anxious before a polygraph test, but dwelling excessively on fear or anxiety can negatively affect the examinee’s physiological responses. Try to stay calm and focused during the examination.

Attempting Countermeasures

Do not attempt to employ countermeasures or techniques to manipulate the test results, as skilled examiners are trained to identify and mitigate such attempts.


When hiring a polygraph examiner, conducting thorough research and due diligence is crucial to ensure accurate and reliable results. Consider the qualifications, experience, and reputation of the examiner. Evaluate their commitment to professional ethics, adherence to privacy regulations, and their use of modern technology and equipment. By taking all these factors into account, you can make an informed decision and hire a polygraph examiner who will provide accurate results while maintaining the highest standards of professionalism and confidentiality.

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