Las Vegas Polygraph Testing & Private Investigations
“Provider of Actionable Intelligence”
About Us
Professional Polygraph & Private Investigation Services – Serving Las Vegas & All of Nevada
We specialize in polygraph (lie detector) testing for a wide range of clients, including the general public, corporations, legal firms, sex/marriage therapists, public entities, government agencies, immigration service providers, and family court. Our private investigation services include surveillance, locating individuals, background screening, relationship issues, and security consulting. Mobile service is available throughout Nevada.
- Board Certified Polygraph Examiner
- Graduate, Backster School of Lie Detection
- Licensed Private Investigator / Polygraph Examiner – Nevada License #1066
- Member, American Polygraph Association (APA)
Why Clients Choose LVPI
Professional Polygraph Testing – Trusted Across Nevada
At Las Vegas Polygraph & Investigations (LVPI), we use modern computerized polygraph instruments equipped with the latest countermeasure detection technology, all authorized by the Nevada Private Investigator’s Licensing Board (PILB).
Our exams are conducted in full compliance with the American Polygraph Association’s Standards of Practice and are ASTM-compliant, ensuring the highest level of professional integrity.
✔ Test questions are carefully designed to clear innocent individuals who have become involved in serious situations beyond their control.
✔ Friendly, confidential, and respectful environment
✔ Non-rushed process focused on accuracy and professionalism
✔ Trusted by therapists, law firms, public agencies, and private companies statewide
Whether you're navigating a legal case, employment issue, relationship concern, or government matter — we're here to help bring truth and peace of mind.
📞 Call us today to schedule your confidential appointment!
Our Services
Law Firms
Family Issues
- Criminal and Civil Issues
- Family Court Cases
- Locate & Interview Witnesses
- Sex Assault Confirmation
- Asset Searches
- Surveillance
Family Issues
Family Issues
- Infidelity Verification
- Missing & Exploited Children
- Drug & Gambling Issues
- Money & Property Theft
- Intentional Poisoning
- Property Rental Scams
Business Solutions
- Employee & Vendor Theft
- Assisted Living Center Abuse/Neglect
- Camera Repair/Upgrades
- Employee Screening
- Secret Shopper
Locate Anyone
- Expert People Locates
- Covert GPS Monitoring
- Activity Surveillance
- Missing Persons
- Runaways
Surveillance
- Cheating Spouses
- Insurance Fraud
- Employer Embezzlement
- Hidden Camera Detection
- Activity Verification
Background Screening
- Law Enforcement Screening
- Armored Transport Screening
- Nanny Background Verification
- Professional Licensing
- Criminal/Civil Records
American Society for Testing and Measurements Compliant
American Society for Testing and Measurements Compliant
American Society for Testing and Measurements Compliant
Member of the American Polygraph Association
American Society for Testing and Measurements Compliant
American Society for Testing and Measurements Compliant
American Association of Police Polygraphists Compliant
American Society for Testing and Measurements Compliant
American Association of Police Polygraphists Compliant
What’s Inside!
Experience Matters!
Experienced Polygraph Services in Las Vegas Since 2007
Las Vegas Polygraph & Investigations (LVPI) has been providing professional polygraph testing in Las Vegas, Nevada, since 2007. We are proud members of the American Polygraph Association (APA) and specialize in examinations related to child abuse, sex offenses, criminal defense, relationship issues, and employment matters.
Our founder, James Hannah, brings a wealth of investigative experience to the practice. A former Boulder City Police Department Reserve Officer, Mr. Hannah has served as a district, regional, and corporate investigator. He is a licensed Nevada private investigator with over 18 years of active licensure.
LVPI is a long-standing provider for the Clark County Indigent Defense Conflict Panel, offering both investigative services and polygraph examinations in support of public defense.
Trusted by a wide range of government and legal clients, our past and current clients include:
- United States Air Force (USAF) Area Defense Counsel
- King County, Washington
- Niles, Illinois
- Clark County, Nevada Public Defender’s Office
- Nevada Division of State Parks
Computerized Polygraph & Compliance
Trusted Polygraph Testing & Investigative Services
Rely on licensed and insured expertise for your polygraph and investigative needs. At Las Vegas Polygraph & Investigations (LVPI), we prioritize accuracy, discretion, and professionalism in every case. Using advanced Lafayette computerized polygraph instruments and peripheral devices, we ensure precise and reliable results.
LVPI strictly adheres to the American Polygraph Association's (APA) Standards of Practice and is fully compliant with the Nevada Private Investigator's Licensing Board (PILB). We operate in accordance with all applicable federal and local laws, including:
- Employee Polygraph Protection Act (EPPA)
- Equal Employment Opportunity Commission (EEOC) guidelines
- Americans with Disabilities Act (ADA)
Whether you’re facing civil, criminal, or family-related matters, our polygraph services can provide the clarity and confidence you need—both personally and professionally.
Explore our full range of testing services and discover how we can support your truth-seeking process.
Private Investigation
Lie Detection & The Polygraph Instrument
Lie Detection & The Polygraph Instrument
Since 2001, we have conducted a wide variety of criminal, workplace, civil, legal, and insurance fraud investigations throughout Southern Nevada. We offer cost saving solutions and free consultation.
Lie Detection & The Polygraph Instrument
Lie Detection & The Polygraph Instrument
Lie Detection & The Polygraph Instrument
Learn about the evolving science of lie detection, a century of people who brought the modern polygraph test to where it is today, and how the polygraph was used to discover bio-communication.
Polygraph Validity & Reliability
Pro Bono Testing & Missing Persons
Pro Bono Testing & Missing Persons
Review government and private research reports that validate polygraph testing and expel the myths regarding court admissibility and accuracy. These publications are helpful to educators, attorneys, and individuals who desire case citations and specific scientific studies regarding the accuracy and validity of polygraph examinations.
Pro Bono Testing & Missing Persons
Pro Bono Testing & Missing Persons
Pro Bono Testing & Missing Persons
We offer free polygraph testing to qualified families and disadvantaged individuals who are involved in missing or exploited children events.
LVPI is committed to helping the community resolve crimes involving our most vulnerable and innocent population, children.
Missing and Exploited Children
The National Center for Missing & Exploited Children documented 421,394 missing children in the US, during 2019.
- 1 of every 10,000 missing children in the US are never found alive.
- In the US, a child goes missing every 90 seconds.
- 4600 children are abducted by strangers every year in the US.
- A family member masterminds 9% of all US child abductions due to a custody dispute.
What to Expect
If you are about to take a polygraph test, we recommend reviewing our FAQ’s page.
We answer the most common questions our clients have, explain how to prepare for your test and what to expect during your appointment with us. We include films to demonstrate a properly administered polygraph test and how your “fight or flight” reflex comes into play.
Sex Offender Testing
Employer Polygraph Testing
We specialize in post conviction sex offender testing and coordinate with behavioral therapists as well as parole and probation agencies. If you are seeking a qualified examiner for your sex therapy clients or are currently enrolled in a multi-disciplinary supervision team program as an offender, you are encouraged to contact us. We include a downloadable comprehensive APA article regarding testing protocols we are in compliance with. Included is a brief film that explains the containment approach model.
Employer Polygraph Testing
Employer Polygraph Testing
Employer Polygraph Testing
The 1988 Employee Polygraph Protection Act (EPPA) allows pre-employment testing in limited job classifications and individuals involved in a loss to their employer. We have extensive experience with internal loss investigations. Learn about this specialized testing and our affordable solutions for your agency or business.
Blogs
Employer Polygraph Testing
We Will Come To You
Read about private investigation cases, services we offer and how the polygraph is used in unique ways to solve mysteries, clear the innocent and identify the guilty.
Recommended reading for “true crime“ enthusiasts and those interested in becoming an investigator and / or polygraph examiner.
We Will Come To You
Employer Polygraph Testing
We Will Come To You
LVPI offers mobile polygraph testing throughout Nevada and Arizona. We administer tests in businesses, law offices, detention facilities, and law enforcement agencies. In some circumstances we will test in private homes and hotel rooms.
Recommended for companies and agencies that want to test a group of employees.
Rates
Our Rates
Affordable, Transparent Rates – Free & Confidential Consultations
At Las Vegas Polygraph & Investigations (LVPI), we believe in providing honest, straightforward pricing tailored to each client's unique situation.
- Polygraph testing rates vary depending on the nature and complexity of the case.
- Private investigation services start at $125.00 per hour for most clients.
- We offer cost-effective solutions for many types of cases and budgets.
💬 Initial consultations are always free and 100% confidential. We’re here to help you understand your options and guide you toward the best course of action.
Call today to discuss your case with no pressure and no obligation.Consultation is always free and confidential.