Choosing the wrong practitioner can undermine your entire result, so this consumer guide walks you through vetting a professional examiner before you book a lie detector test through a service like LieDetectorTest.com.
The majority of polygraph examiners in the United States are highly trained professionals working to APA standards delivering reliable results. However, a small number of providers fall short of acceptable standards. This comprehensive guide gives you the practical tools to verify credentials, spot warning signs, understand pricing, evaluate reviews, and ensure the examiner you choose will deliver accurate, defensible results every time.
TL;DR — The Short Version
- APA Membership — Always verify the examiner holds current American Polygraph Association membership at polygraph.org. This single check confirms training, competency, and ethical compliance.
- Watch for Wordplay — Phrases like "trained to APA standards" are not the same as actual APA membership. Demand proof of current membership, not just training certificates.
- Expected Cost — A single-issue polygraph test in the US typically ranges from $500 to $900, with the broader market ranging up to $1,200+ for complex cases. All-inclusive, fixed-price quotes with no hidden fees are the professional standard.
- Remote Testing Is a Scam — No technology exists to conduct legitimate polygraph testing over the phone, internet, or video call. Voice stress analysis has been scientifically debunked. Any such offer is fraudulent.
- Test Duration — A proper examination takes approximately two to three hours. Anything under one hour means critical steps are being skipped.
- Report Standards — A professional report includes examiner credentials, APA membership number, questions asked, numerical scoring analysis, and the examiner's signature.
- Independent Reviews — Verify reviews on independent platforms like Trustpilot, not just the provider's own website where testimonials can be fabricated.
- Professional Infrastructure — Look for a dedicated business email domain, published terms of service, physical testing locations, and a customer support team.
Who This Guide Is For
- Individuals considering a private polygraph test for personal, legal, or relationship matters
- Attorneys seeking a qualified examiner for criminal defense or civil litigation cases
- HR professionals evaluating polygraph providers for corporate investigations
- Therapists and counselors considering polygraph as a therapeutic adjunct tool
- Anyone who has been offered a polygraph and wants to verify the provider's credentials
- Consumers who have already been burned by an unqualified examiner and need to understand what went wrong
APA Accreditation: The Single Most Important Verification
Why APA Membership Matters More Than Anything Else
The American Polygraph Association (APA) is the foremost professional body governing the polygraph industry in the United States and internationally. Established in 1966, it is the world's leading association dedicated to evidence-based scientific methods for credibility assessment, with over 2,700 members worldwide Verified 6 Key Factors That Affect Polygraph Test Costs Now
Confirms the $500-$900 average cost for single-issue polygraph evaluations and that APA does not dictate examiner fees.. The broader market range extends from approximately $400 to $1,200 or more, with a national average of around $800 Verified 6 Key Factors That Affect Polygraph Test Costs Now
Confirms the $500-$900 average cost for single-issue polygraph evaluations and that APA does not dictate examiner fees..
Several factors may influence the final price:
Test Type: A single-issue test focused on one specific topic is typically less expensive than a multi-issue screening examination, which covers several areas and requires more extensive question construction and chart analysis.
Geographic Location: Costs can fluctuate significantly between metropolitan and rural areas, and between different states Verified How Much Does a Lie Detector Test Cost? — Sapphire Check
Confirms the broader market range of $400-$1,200 with a national average of approximately $800, and pre-employment screening costs of $350-$500.. For context, the U.S. Customs and Border Protection spent approximately $2,200 per exam during their hiring process Verified How Much Does a Lie Detector Test Cost? — Sapphire Check
Confirms the broader market range of $400-$1,200 with a national average of approximately $800, and pre-employment screening costs of $350-$500..
Specialty Testing: Certain types of testing, such as PCSOT or legal defense polygraphs that may need to be conducted to evidentiary standards, may carry higher fees due to the additional documentation and procedural requirements.
Urgency: If you require same-day or next-day testing, some providers charge a premium for expedited scheduling. Rush service requests may carry a 25-50% surcharge.
The quote you receive should be all-inclusive and fixed. Before booking, ask specifically: "Is this the total price, or are there any additional fees for the report, travel, venue, or quality review?" A professional provider will give you a clear, complete answer. For seasonal demand trends, see our analysis of why polygraph bookings spike after summer and Christmas.
Cancellation and Refund Policies
Professional polygraph providers understand that circumstances change. Most companies charge a non-refundable booking deposit — usually $100 or approximately half the total cost — to secure your appointment, with the balance due at the time of testing [22]Verified Polygraph Test Cost: Expert Guide — Axeligence
Confirms standard single-issue tests cost $400-$900 and that non-refundable deposits are standard industry practice..
If you need to cancel with 48 hours' notice or more, you should typically be offered either a full refund (less the booking fee) or an alternative date within 30 days. With less than 48 hours' notice, providers may retain a larger portion of the fee to cover the examiner's reserved time and any venue costs already incurred.
A provider that offers no refund under any circumstances regardless of notice period is not operating in accordance with reasonable consumer protection standards. Consider looking elsewhere. Before booking, ensure you understand the cancellation policy in writing. Reputable companies publish their terms and conditions clearly on their website.
Test Duration, Results, and Professional Terminology
How Long Does a Polygraph Test Take?
A professional polygraph examination typically takes between two and three hours, though this can vary depending on the complexity of the issue and the number of questions being administered [23]Verified Polygraph Frequently Asked Questions — American Polygraph Association
Confirms the three distinct phases of a polygraph examination: pre-test interview, chart collection, and test data analysis. [24]Verified Scientific Validity of Polygraph Testing: A Research Review and Evaluation (Chapter 2) — OTA
U.S. Congress OTA report confirming polygraph examinations normally take 1 to 3 hours and that pre-test interviews may take from 20 to 90 minutes.. The APA describes a typical examination as including three distinct phases: a pre-test interview, a chart collection phase, and a test data analysis phase [23]Verified Polygraph Frequently Asked Questions — American Polygraph Association
Confirms the three distinct phases of a polygraph examination: pre-test interview, chart collection, and test data analysis.. The U.S. Congress's Office of Technology Assessment documented that total examination time normally ranges from one to three hours [24]Verified Scientific Validity of Polygraph Testing: A Research Review and Evaluation (Chapter 2) — OTA
U.S. Congress OTA report confirming polygraph examinations normally take 1 to 3 hours and that pre-test interviews may take from 20 to 90 minutes..
Pre-Test Interview (60-90 minutes): The examiner explains the testing process, reviews the questions that will be asked, discusses the issue under examination, establishes rapport, and addresses any concerns or questions the examinee may have [24]Verified Scientific Validity of Polygraph Testing: A Research Review and Evaluation (Chapter 2) — OTA
U.S. Congress OTA report confirming polygraph examinations normally take 1 to 3 hours and that pre-test interviews may take from 20 to 90 minutes. [25]Verified Polygraph Tests Georgia: What Law Firms Must Know — Frye Law Group
Confirms phase durations: pre-test 60-90 minutes, testing 45-60 minutes, post-test 30-45 minutes, with total duration of 2.5-3.5 hours.. This phase is critical because it ensures the examinee fully understands each question and that the questions are precisely formulated to address the issue. Understanding informed consent is a key part of this phase.
Chart Collection Phase (45-60 minutes): The examiner attaches physiological sensors and conducts multiple chart collections. Each "chart" is a complete run of all questions while physiological data is being recorded. Typically, three to five charts are collected to ensure sufficient data for reliable scoring [23]Verified Polygraph Frequently Asked Questions — American Polygraph Association
Confirms the three distinct phases of a polygraph examination: pre-test interview, chart collection, and test data analysis. [25]Verified Polygraph Tests Georgia: What Law Firms Must Know — Frye Law Group
Confirms phase durations: pre-test 60-90 minutes, testing 45-60 minutes, post-test 30-45 minutes, with total duration of 2.5-3.5 hours.. The number of charts will vary depending on the number of issues and technique employed [23]Verified Polygraph Frequently Asked Questions — American Polygraph Association
Confirms the three distinct phases of a polygraph examination: pre-test interview, chart collection, and test data analysis..
Post-Test Discussion (30-45 minutes): Following data collection, the examiner analyzes the charts and renders an opinion as to the truthfulness of the examinee [23]Verified Polygraph Frequently Asked Questions — American Polygraph Association
Confirms the three distinct phases of a polygraph examination: pre-test interview, chart collection, and test data analysis.. The examiner may offer the examinee an opportunity to explain physiological responses in relation to one or more questions [23]Verified Polygraph Frequently Asked Questions — American Polygraph Association
Confirms the three distinct phases of a polygraph examination: pre-test interview, chart collection, and test data analysis.. Verbal results are often communicated at this point, though the formal written report follows later. Learn more about the polygraph post-test interview.
Any provider who completes the entire process in under one hour is almost certainly cutting essential phases. The pre-test interview alone should take at least 60 minutes for a thorough specific-issue examination [24]Verified Scientific Validity of Polygraph Testing: A Research Review and Evaluation (Chapter 2) — OTA
U.S. Congress OTA report confirming polygraph examinations normally take 1 to 3 hours and that pre-test interviews may take from 20 to 90 minutes. [25]Verified Polygraph Tests Georgia: What Law Firms Must Know — Frye Law Group
Confirms phase durations: pre-test 60-90 minutes, testing 45-60 minutes, post-test 30-45 minutes, with total duration of 2.5-3.5 hours.. An abbreviated process significantly increases the risk of unreliable results.
When Will You Receive Results?
The examiner may be able to provide verbal results immediately after the data collection phase. These verbal results give you a preliminary indication of the outcome. The fully analyzed written report, which includes numerical scoring data and a detailed analysis of all physiological responses, is typically delivered within 24 to 48 hours [25]Verified Polygraph Tests Georgia: What Law Firms Must Know — Frye Law Group
Confirms phase durations: pre-test 60-90 minutes, testing 45-60 minutes, post-test 30-45 minutes, with total duration of 2.5-3.5 hours..
Understanding Professional Terminology
Although commonly referred to as a "lie detector test," the polygraph is more accurately described as a tool that detects deception or the absence of it through physiological responses. Your report should use the correct professional terminology — for a comprehensive reference, see our polygraph glossary:
"No Deception Indicated" (NDI): The examinee's physiological responses were consistent with truthfulness on the relevant questions. This outcome reflects a non-deceptive response pattern.
"Deception Indicated" (DI): The examinee's physiological responses were consistent with deception on one or more relevant questions. This indicates a significant response was detected.
"Inconclusive" (INC): The physiological data did not provide sufficient clarity to render a definitive opinion in either direction.
"No Opinion" (NO): In rare cases, factors prevented the examiner from forming a professional opinion — for instance, if the test was disrupted or if there were indications of purposeful non-cooperation.
If your report uses informal language like "passed" or "failed" without the corresponding professional terminology, ask the examiner why. While "passed" and "failed" are common shorthand, a professional report should always include the formal clinical outcome.
What a Professional Polygraph Report Must Contain
Essential Components of a Defensible Report
A professional polygraph examination report is a formal document that may be used in legal proceedings, corporate investigations, or therapeutic contexts. It must be comprehensive enough to withstand independent review and, if necessary, expert scrutiny. The Federal Psychophysiological Detection of Deception Examiner Handbook provides standardized guidelines for report content and quality assurance [12]Verified Federal Psychophysiological Detection of Deception Examiner Handbook
Official U.S. Department of Defense policy manual establishing standardized testing procedures, scoring methods, and quality assurance requirements for all federal polygraph programs..
At minimum, a professional report should contain: The examiner's full name, credentials, and APA membership number. The date, time, and location of the examination. The identity of the examinee and the requesting party. A clear statement of the issue under examination. All questions asked during the test, including relevant, comparison, and sacrifice relevant questions. The numerical scoring analysis from a validated scoring algorithm. The examiner's professional opinion using standard terminology (NDI, DI, INC, or NO). The examiner's signature.
If your report lacks any of these elements, request clarification. A report without numerical scoring data, for instance, may indicate the examiner is relying on subjective global analysis rather than validated scoring methods. This makes the results significantly less defensible.
Evaluating Reviews and Provider Reputation
Where and How to Check Reviews
Online reviews can be a useful tool for evaluating polygraph providers, but they must be interpreted carefully. Reviews on a provider's own website can be selectively curated or even fabricated. Independent review platforms like Trustpilot, Google Reviews, and the Better Business Bureau provide a more reliable picture because the provider has less control over what appears.
When evaluating reviews, look for: Specific details about the testing experience rather than generic praise. Mentions of professionalism, thoroughness, and clear communication. Comments about the pre-test interview process and the examiner's demeanor. Any patterns of complaints about unexpected fees, rushed testing, or unprofessional conduct.
Be cautious of providers who have only a handful of suspiciously perfect reviews, or providers whose reviews appear formulaic and repetitive. Also be wary of providers with no online presence at all — in today's market, a legitimate professional polygraph company should have a verifiable digital footprint.
Company Stability and Professionalism Indicators
Infrastructure That Signals a Legitimate Provider
Beyond credentials and reviews, several practical indicators can help you distinguish professional providers from fly-by-night operators:
Dedicated Business Email Domain: Professional companies operate from their own email domain (e.g., [email protected]), not free webmail services like Gmail, Yahoo, or Hotmail. A free email address for a business suggests a lack of investment in professional infrastructure.
Published Terms of Service: Reputable providers publish their terms, conditions, cancellation policies, and privacy policies on their website. This transparency is a hallmark of professional business practice.
Physical Testing Locations: Tests should be conducted in professional, private office environments — not in homes, hotel rooms, or vehicles. Environmental factors can significantly contaminate exam results.
Customer Support Team: A professional provider has a responsive customer support team available to answer questions before and after your examination. If you can only reach the examiner via personal mobile phone, the operation may lack the infrastructure needed to handle complaints or issues professionally.
Longevity in Business: While new providers can certainly be competent, companies with years of operational history demonstrate stability and sustained customer satisfaction.
The Examiner's Approach Matters
Diagnostic vs. Interrogative Approaches
Not all examiner approaches are equal, and the way an examiner conducts the test has a direct impact on accuracy. Research published in the European Polygraph journal demonstrated that an interrogative examiner approach — one aimed at extracting confessions rather than diagnostic truth assessment — can significantly compromise polygraph validity and may lead to false positives [9]Verified Examiner Approach and its Impact on Polygraph Results
Demonstrated that interrogative examiner approaches compromise polygraph validity and can lead to false positives.. The Deskovic case illustrated how discredited interrogation-focused practices can produce devastating miscarriages of justice [9]Verified Examiner Approach and its Impact on Polygraph Results
Demonstrated that interrogative examiner approaches compromise polygraph validity and can lead to false positives..
A professional, diagnostic approach treats the polygraph as a tool for gathering objective physiological data, not as a lever for extracting admissions. When evaluating an examiner, observe whether they approach the process as a neutral, scientific assessment. An examiner who seems to have already decided the outcome before the test begins, or who uses intimidation tactics during the pre-test interview, is not following best practices. Read more about preventing intimidation during a lie detector exam.
Research consistently supports the importance of examiner quality. Early validation studies found 92% agreement between polygraph results and independent panel verdicts [26]Verified A Validation Study of Polygraph Examiner Judgments
Pioneering field validity study finding 92% agreement between polygraph results and panel verdicts., while subsequent field studies confirmed accuracy rates of 92.4% for deceptive subjects and 95.5% for truthful subjects when structured scoring methods are properly applied [4]Verified The Accuracy and Consistency of Polygraph Examiners' Diagnoses
Found examiner accuracy of 92.4% for deceptive subjects and 95.5% for truthful subjects using structured scoring methods in real criminal cases.. These results depend on competent, ethical examiners following validated protocols.
Legal Protections You Should Know About
The Employee Polygraph Protection Act (EPPA)
If you are being asked to take a polygraph in an employment context, it is essential to understand your rights under the Employee Polygraph Protection Act of 1988 (EPPA). This federal law prohibits most private employers from using lie detector tests, either for pre-employment screening or during the course of employment Verified Employee Polygraph Protection Act of 1988 — Wikipedia
Confirms EPPA prohibits most private employers from using polygraph tests, with exemptions for government and certain security/pharmaceutical roles.. Federal, state, and local government employers are exempted from the Act Verified Employee Polygraph Protection Act of 1988 — Wikipedia
Confirms EPPA prohibits most private employers from using polygraph tests, with exemptions for government and certain security/pharmaceutical roles..
Limited exemptions exist for certain private employers, including security firms (armored car, alarm, and guard companies), pharmaceutical manufacturers and distributors, and employers conducting ongoing investigations involving economic loss where reasonable suspicion exists Verified Employee Polygraph Protection Act of 1988 — Wikipedia
Confirms EPPA prohibits most private employers from using polygraph tests, with exemptions for government and certain security/pharmaceutical roles.. Even when testing is permitted under an exemption, strict procedural safeguards apply — including written notice, the right to legal counsel, and prohibition against adverse action based solely on test results Verified Employee Polygraph Protection Act of 1988 — Wikipedia
Confirms EPPA prohibits most private employers from using polygraph tests, with exemptions for government and certain security/pharmaceutical roles..
Violations carry a $10,000 penalty for each occurrence Verified Employee Polygraph Protection Act (EPPA) — American Polygraph Association
Confirms $10,000 penalty per violation and procedural requirements including 48-hour advance notice to employees.. Understanding your rights under EPPA is critical. For state-specific legal information, consult our guides on Minnesota polygraph laws and Michigan employer polygraph rights. If you are considering a voluntary polygraph, understanding the legal framework is equally important.
Verify APA Membership
Visit polygraph.org and search for the examiner by name. Confirm they hold current, active membership in the American Polygraph Association. This single check verifies their training, competency, ethical compliance, and continuing education status.
Check State Licensing (If Applicable)
Determine whether your state requires polygraph examiners to hold a state license. If so, verify the examiner's license status through your state's licensing board. Many states list licensing boards directly on the APA website.
Request an All-Inclusive Price Quote
Ask for the total cost in writing before booking. Confirm there are no additional fees for the report, travel, venue hire, or quality control review. A standard single-issue test should fall between $500 and $900. Be cautious of prices significantly below $400.
Verify Testing Location and Equipment
Confirm the test will be conducted in a professional office environment using modern computerized polygraph equipment. Reject any offers for testing in homes, hotel rooms, or vehicles, and any offers for remote, phone, or video-based testing.
Review the Cancellation Policy
Read the cancellation and refund policy in full before paying any deposit. Confirm what happens if you need to reschedule or cancel, and ensure the terms are reasonable. Policies should be published on the provider's website.
Check Independent Reviews
Search for the provider on Trustpilot, Google Reviews, and the Better Business Bureau. Look for patterns of positive or negative experiences. Be wary of providers with only on-site testimonials and no independent review presence.
Confirm Report Delivery and Contents
Ask what the written report will include and when it will be delivered. A professional report should contain the examiner's credentials, APA membership number, all questions asked, numerical scoring analysis, professional opinion using standard terminology, and the examiner's signature. Expect delivery within 24-48 hours.
Assess Communication and Professionalism
Pay attention to how the provider communicates during your initial inquiry. A professional provider responds promptly, answers questions directly, and provides clear information about the process. Evasiveness, defensiveness about credentials, or pressure to book immediately are all red flags.
Frequently Asked Questions
How do I verify if a polygraph examiner is an APA member?
Visit the American Polygraph Association website at polygraph.org and use their member search function to look up the examiner by name. If they appear as a current member, their training, competency, ethical compliance, and continuing education have been independently verified. This is the single most important check you can perform. Any qualified examiner will welcome this verification.
How much does a polygraph test cost in the United States?
A standard single-issue polygraph test typically costs between $500 and $900. The broader market range extends from approximately $400 to $1,200+ depending on test complexity, geographic location, and examiner experience. Pre-employment screenings may cost less ($350-$500), while complex legal cases can exceed $1,500. Always request an all-inclusive, fixed-price quote before booking.
How long does a polygraph examination take?
A thorough polygraph examination takes approximately two to three hours total. This includes a pre-test interview (60-90 minutes), a chart collection phase (45-60 minutes), and a post-test discussion and analysis (30-45 minutes). Any provider completing the entire process in under one hour is likely cutting essential steps, which compromises accuracy.
Can a legitimate polygraph test be conducted over the phone or internet?
Absolutely not. A legitimate polygraph examination requires the physical attachment of sensors to the examinee's body to measure respiratory, electrodermal, and cardiovascular responses. No remote technology — including voice stress analysis, AI-powered detection, or remote biometrics — has been scientifically validated for deception detection. Any such offer is fraudulent.
What is the difference between 'trained to APA standards' and actual APA membership?
This is a critical distinction. 'Trained to APA standards' typically means the examiner attended a school that follows APA curriculum guidelines, but it does not mean they are an APA member. APA membership requires graduating from an accredited program, passing competency assessments, agreeing to the Code of Ethics, and completing ongoing continuing education. Always verify actual current membership, not just training claims.
What should a professional polygraph report include?
A professional report should contain the examiner's full name and credentials, APA membership number, date and location of the exam, the examinee's identity, a clear statement of the issue, all questions asked, numerical scoring analysis from a validated algorithm, the examiner's professional opinion using standard terminology (NDI, DI, INC, or NO), and the examiner's signature. Reports are typically delivered within 24-48 hours.
What are the biggest red flags when choosing a polygraph examiner?
The most significant red flags include: offering phone or internet-based polygraph tests, inability to provide proof of current APA membership, pricing dramatically below $400 for a single-issue test, using free webmail for business communications, no independent reviews, using outdated analogue equipment, testing in homes or hotel rooms, and being evasive about credentials when asked directly.
Is voice stress analysis a valid alternative to polygraph testing?
No. Scientific evidence overwhelmingly shows that voice stress analyzers are not effective in detecting deception. A National Institute of Justice field study found only a 15% detection rate for deceptive respondents — essentially no better than chance. The National Research Council concluded there is little or no scientific basis for these technologies. The APA maintains a comprehensive list of studies documenting their lack of validity.
Do polygraph examiners need a state license?
It depends on the state. Licensing requirements vary significantly across the United States. States like Texas, Virginia, and South Carolina have formal licensing requirements, while others like Minnesota and New Hampshire have no licensing framework at all. Regardless of state requirements, always verify that the examiner holds current APA membership as a minimum standard of quality.
What does 'Inconclusive' mean on a polygraph result?
An 'Inconclusive' (INC) result means the physiological data did not provide sufficient clarity to render a definitive opinion about truthfulness or deception. This does not mean the examinee was lying — it means the data was ambiguous. Various factors can contribute to inconclusive results, including medical conditions, extreme nervousness, or medication. Retesting may be recommended in these cases.
Where can I book a lie detector test near me?
Sources & References
Confirms APA membership requirements including hundreds of hours of coursework, internship, continuing education, and adherence to Code of Ethics and Standards of Practice. Confirms APA has 2,700+ members.
Identifies core elements essential for effective polygraph examiner training programs.
Seminal reliability study confirming high inter-rater reliability for experienced examiners using structured scoring methods.
Found examiner accuracy of 92.4% for deceptive subjects and 95.5% for truthful subjects using structured scoring methods in real criminal cases.
Confirms APA requirement of 30 continuing education hours every two years for practicing examiners.
Official APA directory of state-by-state licensing requirements and regulatory bodies for polygraph examiners.
Identifies core elements essential for effective polygraph examiner training programs.
Confirmed substantial inter-rater agreement (Fleiss kappa.61) and 95.4% mean decision agreement for ESS scoring method.
Demonstrated that interrogative examiner approaches compromise polygraph validity and can lead to false positives.
Confirms the three phases of a standard polygraph examination and standard procedures for pre-test, chart collection, and data analysis.
Confirms electrodermal response is the most robust and informative signal in polygraph testing, driven exclusively by sympathetic nervous system activity.
Official U.S. Department of Defense policy manual establishing standardized testing procedures, scoring methods, and quality assurance requirements for all federal polygraph programs.
Found that electrodermal (GSR) measures provided the most diagnostic information, followed by cardiovascular and respiratory channels.
Published research confirming that voice stress analyzers have not been shown to yield detection rates above chance levels in controlled situations.
NIJ-funded field evaluation found VSA programs detected only 15% of deceptive respondents — approximately chance-level accuracy.
Documents the National Research Council's 2003 conclusion that existing research offers little or no scientific basis for the use of voice stress analyzers.
APA compilation of research documenting the lack of validity and reliability of voice stress analysis technologies for deception detection.
Confirms basic polygraph examiner course tuition of $6,500, illustrating the significant cost of professional training.
Highlights the importance of professional standards and social tolerance in the polygraph community, warning against boundary overreach by examiners.
Confirms standard single-issue tests cost $400-$900 and that non-refundable deposits are standard industry practice.
Confirms the three distinct phases of a polygraph examination: pre-test interview, chart collection, and test data analysis.
U.S. Congress OTA report confirming polygraph examinations normally take 1 to 3 hours and that pre-test interviews may take from 20 to 90 minutes.
Confirms phase durations: pre-test 60-90 minutes, testing 45-60 minutes, post-test 30-45 minutes, with total duration of 2.5-3.5 hours.
Pioneering field validity study finding 92% agreement between polygraph results and panel verdicts.
Confirms EPPA prohibits most private employers from using polygraph tests, with exemptions for government and certain security/pharmaceutical roles.
Confirms $10,000 penalty per violation and procedural requirements including 48-hour advance notice to employees.
Armed with these tips for choosing wisely, find a lie detector test near you and compare pricing from professional examiners in your area.