10,000+
Clients Tested
Professional Examiners Trained to APA Standards
140+ Professional Testing Locations Across the U.S. & Canada
Government-Grade Polygraph Technology & APA-Validated Methods
Trusted by 10,000+ Clients, Attorneys & Organizations
Confidential Lie Detector Testing Across the United States and Canada
Polygraph examinations conducted by carefully vetted examiners trained to APA standards and established testing protocols. Professional office locations, transparent all-inclusive pricing, and detailed written reports.
140+
Locations
35
Examiners
95%
Accuracy
How We Can Help
Resolve Trust Issues
Get clarity in relationships and personal disputes with definitive answers.
Learn More →Defend Your Innocence
Provide evidence for legal cases and help clear your name from false accusations.
Learn More →Protect Your Business
Investigate theft, fraud, and employee misconduct with professional screening.
Learn More →Professionally Documented Reports
Detailed written reports suitable for review by attorneys, employers and other authorised recipients. Admissibility varies by jurisdiction.
Learn More →The Science
What Is a Lie Detector Test?
The science behind polygraph examinations and why they are trusted worldwide.
A lie detector test (polygraph) is a psychophysiological examination used to assess whether a person is being truthful. It works by measuring involuntary physiological responses — including heart rate, breathing patterns, blood pressure, and electrodermal activity — while you answer a structured series of yes-or-no questions. Trained examiners analyse these responses to form a professional opinion on truthfulness.
Polygraph testing is used by the FBI, CIA, NSA, Secret Service, DEA, and U.S. Department of Defense as part of their security screening and investigation processes. It is also widely used by law enforcement agencies across the United States for pre-employment screening and criminal investigations.
According to the American Polygraph Association’s meta-analysis of 38 peer-reviewed studies, validated polygraph techniques achieve an overall decision accuracy of approximately 87%, with single-issue examinations reaching up to 95% accuracy. The National Research Council confirms polygraph tests discriminate between truthfulness and deception at rates well above chance.
Government-Grade Protocols
Scientifically Validated
Trusted by Federal Agencies
Detailed Written Reports
95%Single-Issue
Accuracy
Accuracy
Overall decision accuracy87%
Peer-reviewed studies38
Physiological channels4+
APA 2011 meta-analysis. Single-issue figure is the upper confidence interval; accuracy varies with examiner training, technique, and case complexity.
Our Services
Polygraph Testing Services
A comprehensive range of polygraph testing services for individuals, families, legal professionals and businesses.
01
Relationship & Infidelity
Resolve trust issues with confidential polygraph testing for couples and families dealing with infidelity concerns.
Learn More →02
Pre-Employment Screening
Verify the integrity and honesty of potential employees with professional pre-employment polygraph testing.
Learn More →03
Legal & Attorney
Polygraph tests for attorneys, legal proceedings, and defence or prosecution cases. Admissibility varies by jurisdiction.
Learn More →04
Theft & Fraud
Investigate workplace theft, fraud, or dishonesty with professional polygraph examinations.
Learn More →05
Family & Custody
Support custody disputes and family matters with professionally administered polygraph testing.
Learn More →06
Corporate & Business
Comprehensive polygraph solutions for businesses including internal investigations and compliance testing.
Learn More →The Journey
What to Expect
Your complete journey from booking to receiving results.
Book Online
2 minutesChoose your location, date and time. Only a $100 deposit secures your slot.
Instant Confirmation
Within minutesSMS & email with exact venue address, directions, parking info, and prep guide.
Pre-Test Interview
~30 minutesYour examiner reviews the process, agrees the 3 test questions with you, and answers any concerns.
The Examination
~60 minutesEach question repeated 3+ times for accuracy. Comfortable, private environment. Completely painless.
Your Report
Within 48 hoursFully detailed written report with clear pass/fail results, sent securely to you only.
Completely non-invasive
Questions agreed before you start
You can stop at any time
Private, climate-controlled office
Written report included
Total time: approx. 2 hours
Our Guarantee
We Only Use Experienced Examiners
No interns. No trainees. Every examination in our network is conducted by a seasoned professional.
A polygraph result can change a relationship, a career, or a court case — so the person conducting it matters more than anything else. That's why every examiner in our network must clear the same bar before they take a single appointment: verified experience, verified training, verified record. After you book, an examiner is individually assigned to you based on your case details — never handed to whoever happens to be free.
Why it matters
An inexperienced examiner is the single biggest cause of inaccurate polygraph results. When the outcome affects your personal life, your career or your legal position, only a seasoned professional should run the examination.
ExperiencedSeasoned professionals with a substantial, reviewed examination history — never interns or trainees.
Professionally TrainedGraduates of APA-accredited polygraph programs, working to American Polygraph Association standards.
Background VettedIdentity, credentials and professional record independently verified before joining the network.
InsuredProfessional liability insurance in place and confirmed current for every examiner.
Accurate ResultsCalibrated digital instruments and validated techniques only — no shortcuts, no unproven methods.
Professionally DocumentedWritten reports prepared to a professional standard, with expert testimony available. Legal weight varies by jurisdiction.
Discreet & ConfidentialPrivate, unmarked offices and results shared with no one but you.
Nationwide AvailabilityThe same standard at every office across the United States, Canada and the United Kingdom.
Our Examiners Trained at APA-Accredited Polygraph Schools
PEAK Credibility AssessmentLakeland, FL · APA Accredited
Marston Polygraph AcademySan Bernardino, CA · APA Accredited
American International InstitutePeachtree City, GA · APA Accredited TPIThe Polygraph Institute
Houston, TX · APA Accredited
International Academy of PolygraphFort Lauderdale, FL · APA Accredited
National Polygraph AcademyLexington, KY · APA Accredited NCCANational Center for Credibility Assessment
Fort Jackson, SC · APA Accredited
Emerald Coast Polygraph AcademyFort Walton Beach, FL · APA Accredited
Virginia School of PolygraphRichmond, VA · APA Accredited
Academy for Scientific Investigative TrainingPhiladelphia, PA · APA Accredited
PEAK Credibility AssessmentLakeland, FL · APA Accredited
Marston Polygraph AcademySan Bernardino, CA · APA Accredited
American International InstitutePeachtree City, GA · APA Accredited TPIThe Polygraph Institute
Houston, TX · APA Accredited
International Academy of PolygraphFort Lauderdale, FL · APA Accredited
National Polygraph AcademyLexington, KY · APA Accredited NCCANational Center for Credibility Assessment
Fort Jackson, SC · APA Accredited
Emerald Coast Polygraph AcademyFort Walton Beach, FL · APA Accredited
Virginia School of PolygraphRichmond, VA · APA Accredited
Academy for Scientific Investigative TrainingPhiladelphia, PA · APA Accredited
Client Insights
You're Not Alone — Here's Why People Book
Understanding the most common reasons our clients seek a polygraph examination.
42%
Get Answers & Rebuild Trust
Infidelity, fidelity checks, relationship concerns
28%
Prove Your Innocence
False accusations, wrongful suspicion
18%
Protect Your Business
Theft, fraud, integrity screening
12%
Strengthen Your Legal Case
Defence, custody, PCSOT, court support
Based on 10,000+ examinations conducted across the U.S. & Canada and Europe
Priority Scheduling
Need a Test This Week?
Same-week appointments available in most locations. Call now for priority scheduling or book online — we'll confirm your nearest available slot within the hour.
For Attorneys & Law Firms
Legal Professionals
Professionally documented polygraph reports for criminal defence, family law, insurance fraud, and civil litigation. Admissibility varies by state.
Nationwide Coverage
Find Your Nearest Testing Location
Professional testing venues in 27 states and 7 Canadian cities — search yours, or browse the full network.
The Difference
Why Choose Lie Detector Test
Over 10,000 examinations across 140+ professional offices — held to one uncompromising standard. Here is what sets us apart.
Rigorously Vetted Examiners
Every examiner passes our 10-step vetting process — APA-accredited training, background checks, licensing and peer review — and is trained to APA standards. No trainees, no unqualified operators.
Science-Based Only
The polygraph is the only validated truth-verification technology. We reject voice stress, phone apps and eye-tracking gimmicks.
140+ Professional Offices
Private, discreet business venues across the US, Canada and the UK — appointment only. Never a home visit or branded vehicle.
Total Confidentiality
Climate-controlled private offices. Your results are shared with you alone — never disclosed without your consent.
All-Inclusive Fixed Pricing
Booking fee, examination, pre-test assessment and detailed report — all included, no hidden costs. The booking fee is refunded in full if we cannot take your case.
Validated Instruments & Scoring
Computerized polygraph instruments, evidence-based techniques and numerical scoring — with countermeasure detection built in.
Same-Day Results, Written Report
Verbal results on the day, followed by a full written report with clear, defensible scoring you can rely on.
Every Case Individually Reviewed
A specialist reviews your case before it is accepted. If it is not suitable, your booking fee is refunded in full.
10,000+ Examinations
Individuals, couples, employers and attorneys have trusted us with more than 10,000 polygraph examinations.
Easy Online Booking
Book in minutes and get instant SMS and email confirmation — then your examiner takes it from there.
Detailed Written Reports
Clear, defensible documentation suitable for legal, workplace and personal matters — not just a verbal result.
Questions Built Around You
Your examiner designs targeted yes/no questions specific to your situation — never generic, off-the-shelf tests.
Guidance at Every Step
A dedicated team supports you from your first confidential enquiry through to your written results.
Consumer Protection
Not Every "Lie Detection" Service Is Legitimate
If you're booking a polygraph for the first time, the result may shape what happens next — so the accuracy and legitimacy of the service you choose matters.
How We Vet Every Examiner — and What to Look For
Some companies use unproven alternative techniques (such as voice-stress analysis) with no peer-reviewed research confirming their accuracy, or employ unqualified or unprofessional examiners.
Before any examiner tests a client for us, we put them through a 10-step vetting process — and we keep auditing their work afterwards. These are the same standards you should expect from any provider:
Trained to the standard of an APA-accredited program (min. 400 training hours)
Background investigation & character assessment
State licensing verified where required
Uses a validated computerized polygraph — never voice-stress or analog-only
Administers tests to APA standards using validated techniques
Practical skill assessment & a supervised testing period before joining
Charts independently peer-reviewed for quality control
30 hours of continuing education every two years
Full EPPA & state-law compliance
Bound by our Code of Ethics & Standards of Practice
Book with us and every check above is already done for you. You are matched with a rigorously vetted examiner who meets each of these standards — so you are never left to verify one yourself. See our full 10-step vetting process →
Fake Report Warning
How to spot fabricated polygraph reports and ensure your examiner delivers genuine documentation.
Read Alert →Cheap Test Warning
Suspiciously low-priced polygraphs often mean unqualified examiners and unreliable results.
Read Alert →Unqualified Examiners
Untrained operators using unproven methods produce unreliable results at the worst possible time.
Read Alert → View All 20 Fraud Alerts →Find Your Test
Not Sure Which Test You Need?
Select the situation that best describes yours and we'll recommend the right service.
I suspect my partner is lying
Infidelity, trust issues, fidelity verification
→I've been falsely accused
Clear your name with documented evidence
→Something was stolen
Workplace or personal theft investigation
→I need it for a legal case
Court, solicitors, defence, insurance
→It's a workplace issue
Corporate fraud, misconduct, screening
→It involves a sensitive allegation
Sexual contact, abuse claims, PCSOT
→Still unsure? Call us free on (844) 643-8916 — our team will recommend the right test for your situation.
Group Rates
Testing for More Than One Person?
Discounted rates for couples and group examinations.
Most Popular
Couples Testing
Both partners tested separately and privately in the same session. Ideal for resolving trust issues, verifying fidelity, or addressing relationship disputes with objective evidence.
Each tested privately
Same-day results
Individual reports
Reduced rate per person
Book Couples Test →
Corporate & Legal
Group Testing (3+)
Multiple examinees tested individually in succession. Perfect for workplace investigations, insurance claims, or legal matters involving several parties. Volume discounts available.
3+ examinees
Volume discount
On-site available
Dedicated coordinator
Book a Multi-Person Exam
Ready to Book Your Test?
Select your preferred location and schedule online — instant confirmation with full venue details.
Only $100 deposit — remaining balance after agreements are finalised
100% ConfidentialTrained to APA / BPS / EPA StandardsDetailed Report IncludedAll-Inclusive PricingNo Hidden Costs
FAQBefore You Book
Frequently Asked Questions
Everything you need to know before booking.
Prices range from $450 to $2,100 depending on your location. All prices are all-inclusive. Visit our pricing page for exact prices by location.
All bookings are made through our secure online booking system. Only a $100 deposit is required. You'll receive SMS and email confirmation instantly.
When administered by a qualified examiner, polygraph testing achieves 87–95% accuracy. Read our full accuracy research guide.
Allow 90 minutes to 2 hours including pre-test interview and examination.
Completely. Private, climate-controlled offices. Results shared only with you.
We provide testing for infidelity, theft, false accusations, sexual contact allegations, custody, corporate investigations, legal defence, PCSOT, and more.
3 specific relevant questions requiring yes/no answers. Each repeated a minimum of 3 times for accuracy.
Get a good night's sleep, eat normally, avoid alcohol and excessive caffeine. Read our preparation guide.
Professional office environments — typically premium business centres. The exact venue address is sent after booking.
Have more questions? Visit our complete FAQ page for detailed answers.
✓Our Promise to You
Book With Complete Confidence
We stand behind the quality of our service with guarantees that protect you at every step.
Popular
Flexible Deposit
Only $100 to secure your appointment. Full refund if your dates aren’t available or your case isn’t suitable — otherwise it’s credited toward your total fee.
Report Guarantee
Every test includes a fully detailed written report with clear results, typically delivered within 48 hours.
Professional Examiner Guarantee
Every examination is conducted by a professional examiner trained to APA standards. No exceptions.
Ready to Find the Truth?
Book your confidential polygraph examination online — or call our free helpline for advice on your case.