Polygraph Services in Los Angeles, California
Professional Polygraph Examinations & Lie Detector Testing Since 1992
When someone searches for a polygraph examiner or lie detector test, it is usually because the situation is serious. Whether it involves infidelity concerns, employee theft, fraud allegations, criminal defense matters, family disputes, or legal investigations, people want truthful answers from an experienced professional they can trust.
At Kay & Associates Investigations, we provide professional polygraph services and lie detector testing throughout Los Angeles, Southern California, and surrounding areas. Our team works with attorneys, businesses, private individuals, legal teams, and corporations seeking confidential and professionally administered polygraph examinations.
Our polygraph services are conducted discreetly, professionally, and with attention to investigative detail. We understand that most clients contacting us are dealing with emotionally sensitive, financially significant, or legally important situations.
If you are looking for experienced polygraph examiners in Los Angeles or Southern California, our team is available to help.
What Is a Polygraph Examination?
A polygraph examination, commonly referred to as a lie detector test, is a professional examination designed to measure physiological responses while a person answers carefully structured questions.
Polygraph testing may measure:
- Respiratory patterns
- Heart rate
- Blood pressure
- Physiological stress responses
The purpose of a polygraph examination is to assist in evaluating truthfulness regarding specific issues or allegations.
At Kay & Associates Investigations, polygraph examinations are conducted in a professional and controlled setting designed to ensure accuracy, fairness, and confidentiality.
Our polygraph examination expert actually created the I&I training curriculum for the FBI – Los Angeles, which became mandatory training for Probationary FBI Special Agents. He has also presented at DEA, CIA, DSS, and many local Police Departments.
Why People Request Polygraph Services
People contact our office for polygraph services for many different reasons. In most cases, they are seeking clarity, verification, or resolution regarding an important issue.
Common reasons clients request a polygraph examination include:
Infidelity & Relationship Polygraph Tests
Relationship-related polygraph examinations are among the most requested services. Clients often seek answers involving:
- Suspected infidelity
- Hidden relationships
- Financial deception
- Online affairs
- Violations of relationship agreements
These situations are often emotionally difficult, and our team handles them professionally and discreetly.
Criminal Defense Polygraph Examinations
Attorneys and defendants sometimes request independent polygraph examinations in connection with criminal defense investigations.
These examinations may involve:
- Criminal allegations
- Witness credibility
- Theft accusations
- Assault allegations
- Fraud investigations
- Independent defense preparation
Our team regularly works alongside criminal defense investigators and attorneys throughout California.
Employee Theft & Corporate Polygraph Services
Businesses and employers occasionally seek polygraph-related investigative support involving:
- Internal theft
- Fraud allegations
- Employee misconduct
- Confidentiality violations
- Workplace investigations
Corporate polygraph services are handled discreetly and professionally depending on the circumstances and applicable legal considerations.
Family & Personal Matter Polygraph Testing
Polygraph examinations are also used in sensitive family or personal matters involving:
- Family disputes
- Financial disagreements
- Personal accusations
- Trust-related concerns
- Civil disputes
Many clients simply want clarity and truthful answers before making important decisions.
Trusted and Professional Lie Detection Tests, Polygraph Examination Services, and Private Investigations in Beverly Hills and Calabasas, California
Se habla Español!
We offer polygraph examination services performed in English and Spanish. In order to get the most accurate results in a polygraph examination, the way questions are phrased matters—it matters a lot! Simply translating the idea in another language is not good enough. Each word and conjugation change the meaning of a sentence or question and may alter the outcome and accuracy of the lie detection exam. Our lead polygraph examiner expert has spoken English and Spanish since he was a child and is well-versed in grammar accuracy, dialect, and cultural phrasing. Simply having someone who “speaks Spanish” is not enough; you must have a professional polygraph specialist who knows the language in and out with native language abilities.
Experienced. Trusted. Lie Detection Tests by Licensed, FBI-Certified Polygraph Examiner in Los Angeles, CA
Why Choose Kay & Associates Investigations for Polygraph Services?
Experienced Investigative Background
Unlike many standalone polygraph providers, Kay & Associates Investigations brings decades of investigative experience into every case. Our agency has been licensed in California since 1992 and has handled investigations involving fraud, infidelity, criminal defense, surveillance, corporate investigations, and high-profile matters.
This investigative background allows our team to understand:
- How to structure relevant questions
- Case-specific investigative concerns
- Behavioral inconsistencies
- Supporting investigative context
- Sensitive legal and personal situations
Professional & Confidential Polygraph Examinations
Polygraph examinations often involve highly personal or legally sensitive issues. Our office prioritizes:
- Confidentiality
- Professionalism
- Discretion
- Neutral examination procedures
- Respectful treatment of all parties
Every situation is handled carefully and professionally.
Polygraph Services for Attorneys & Legal Teams
Our team frequently works with:
- Criminal defense attorneys
- Family law attorneys
- Civil litigation attorneys
- Corporate legal teams
- Independent investigators
Legal professionals often seek polygraph examinations as part of broader investigative or litigation strategies.
Areas We Serve
Our polygraph services are available throughout:
- Los Angeles
- Beverly Hills
- Orange County
- San Diego
- Ventura County
- Santa Monica
- Malibu
- Pasadena
- West Hollywood
- Southern California
Depending on the case, services may also be available nationwide.
What to Expect During a Polygraph Examination
Many clients have never participated in a polygraph examination before. The process typically includes:
- A confidential pre-examination discussion
- Review of the issue being examined
- Question development and clarification
- Administration of the examination
- Review of results and findings
Professional polygraph testing requires careful preparation and properly structured questioning in order to provide the most reliable examination possible.
Are Polygraph Tests Accurate?
Polygraph examinations are designed to assist in evaluating truthfulness and physiological responses. Accuracy can depend on multiple factors including:
- Question structure
- Examiner experience
- Subject cooperation
- Case complexity
- Testing conditions
Our team approaches every examination carefully and professionally while maintaining investigative standards and confidentiality.
Polygraph Services for High-Profile & Sensitive Cases
Some polygraph matters involve executives, public figures, legal disputes, or highly sensitive allegations. Kay & Associates Investigations has extensive experience handling discreet and high-profile investigations requiring confidentiality and professionalism.
Our agency understands how important privacy and discretion are in sensitive situations.
Schedule a Confidential Polygraph Consultation
If you are searching for professional polygraph services in Los Angeles or Southern California, Kay & Associates Investigations is available to help.
Whether you are an attorney, corporation, business owner, or private individual seeking truthful answers, our experienced team can assist with discreet and professional polygraph services tailored to your situation.
Contact Kay & Associates Investigations today to schedule a confidential consultation.
Frequently Asked Questions
What is a polygraph test?
A polygraph test, also called a lie detector test, measures physiological responses while a person answers structured questions related to a specific issue or investigation.
Why do people take polygraph examinations?
People request polygraph services for infidelity concerns, criminal defense matters, employee theft investigations, fraud allegations, and personal disputes.
Are polygraph examinations confidential?
Yes. Polygraph examinations conducted by Kay & Associates Investigations are handled discreetly and confidentially.
Do attorneys use polygraph examinations?
Yes. Attorneys sometimes use polygraph examinations as part of criminal defense investigations, litigation strategy, or witness credibility evaluations.
Can businesses request polygraph services?
Businesses may request investigative support involving polygraph-related matters connected to internal investigations or fraud concerns depending on legal considerations.
“We can bring the lie detection test services to your location, wherever that may be.”
How the Polygraph Examination Process Works
During the initial consultation, our team will decide the best time and place for the polygraph examination. We will discuss the issue and the best line of questioning.
On the day of the exam we will prepare the space where the polygraph will be conducted. We tell whoever is going to be taking the exam to continue their normal, daily routine. If the person normally drinks a couple cups of coffee in the morning and has a workout regime, we tell them to adhere to their normal activities.
For the actual exam, there are a few things we tell the person to be mindful of:
1. Sit still and relax.
2. Pay attention to what is being asked and focus on what you are saying.
3. Tell the truth.
Following the polygraph test, if the client prefers, we can have our examiner discuss the results with you and provide a written, professional report.
What types of issues can be resolved with polygraph examination services?
Lie detector tests are used in a range of fraud investigations. Polygraph exam services may be used for personal or business, for in-house or for courtrooms. Areas of fraud in which our services may be used include but are not limited to romance scams, internal theft, security breaches, in-home staff and caregivers, insurance claims, family feuds, investments, embezzlement, and skimming.
Public officials and government employees should be held to a higher standard of behavior. When people in these positions are lying, stealing, embezzling, or taking advantage of people or a situation in any way, polygraph exams may be used.
Whether there is internal company theft or a it is a personal matter where a family member is suspected of stealing valuables or hiding assets, we can perform lie detector tests.
Romantic partners, husbands, wives, lovers, and families often employ our polygraph examination services to get answers to whether someone was unfaithful or if they were being truthful about events and details of an infidelity situation.
Assault, murder, and homicide are situations in which courts often choose to employ the use of professional polygraph examination results, for both the defense as well as the prosecution.
In cases of extortion, polygraph examination may clear suspects, freeing investigators to focus on the actual perpetrator of the crime. It may also reveal new clues or insights into the case.
Crimes against children are especially heinous and handled with extreme care. Because of the delicate nature of the situation, polygraph exams must be conducted in a very specific manner with very specific skills. Kay and Associates is specialized in lie detection relating to crimes against kids.
Professional Lie Detector Tests are often used in sexual crimes such as sexual harassment, assault, rape, molestation, and sodomy. Whether it is a case where a family member is being accused of molesting another family member, or in a lawsuit for a business where an employee is being accused of sexual misconduct, our Polygraph Examination Services help prove innocence or guilt.
Police, as well as private investigators, perform lie detection tests to find out if someone was involved in a robbery or bank heist.
Commitment to Professional Standards
We adhere to the strictest standards, ethics, and methods, maintaining confidentiality and professionalism from start to finish in the process. Our polygraph examiners are active members of many associations and industry organizations:



For all of your polygraph examination and lie detector test facilitation needs, contact Kay and Associates Investigations in Los Angeles, CA. We provide on-site polygraph exam services, as well as in-office polygraph examinations in northern, central, and southern California. We also travel for clients internationally to provide professional lie detection at the client’s desired location, wherever that may be.
Polygraph Exams Help Investigations, Family Matters, and Legal Issues
Interviews, Statements, Interrogations, Preliminary Investigations, Criminal, Business, State, City, Federal, Domestic, Employer Insurance, Cheating Spouse, Child Abuse etc.
