
Quick Answer: For those seeking reliable lie detection, polygraph testing in Los Angeles County is a service that is available.
Spectrum Polygraph Services offers certified polygraph (lie detector) exams across every city in Los Angeles County, providing accurate, confidential truth verification for infidelity, immigration, pre-employment, criminal, and financial matters. Our bilingual (English & Spanish) examiners deliver professional testing in-office or via mobile service, with accuracy rates of 90–95% for single-issue cases.
Our Polygraph Services in Los Angeles County
We provide comprehensive testing for:
Infidelity & Relationship Issues
- Suspected cheating (physical or emotional)
- Verification after a confession
- Trust confirmation before marriage or commitment
- Marriage verification for green card applications
- Fraud or misrepresentation allegations
- Asylum and citizenship truth verification
Pre-Employment & Workplace Screening
- Law enforcement and public safety agencies
- Government and security positions
- High-trust private sector roles
- Internal theft investigations
- Fraud detection
- Business dispute truth verification
Why Choose Spectrum Polygraph Services
- Certified Examiners with law enforcement experience
- Bilingual Services (English & Spanish)
- Confidential & Professional Environment
- Mobile Testing available throughout Los Angeles County
- Flexible Scheduling including evenings and weekends
Cities We Serve in Los Angeles County
We offer testing in all cities, neighborhoods, and unincorporated areas of Los Angeles County, including:
Agoura Hills, Alhambra, Arcadia, Artesia, Avalon, Azusa, Baldwin Park, Bell, Bell Gardens, Bellflower, Beverly Hills, Bradbury, Burbank, Calabasas, Carson, Cerritos, Claremont, Commerce, Compton, Covina, Cudahy, Culver City, Diamond Bar, Downey, Duarte, El Monte, El Segundo, Gardena, Glendale, Glendora, Hawaiian Gardens, Hawthorne, Hermosa Beach, Hidden Hills, Huntington Park, Industry (City of Industry), Inglewood, Irwindale, La Cañada Flintridge, La Habra Heights, La Mirada, La Puente, La Verne, Lakewood, Lancaster, Lawndale, Lomita, Long Beach, Los Angeles, Lynwood, Malibu, Manhattan Beach, Maywood, Monrovia, Montebello, Monterey Park, Norwalk, Palmdale, Palos Verdes Estates, Paramount, Pasadena, Pico Rivera, Pomona, Rancho Palos Verdes, Redondo Beach, Rolling Hills, Rolling Hills Estates, Rosemead, San Dimas, San Fernando, San Gabriel, San Marino, Santa Clarita, Santa Fe Springs, Santa Monica, Sierra Madre, Signal Hill, South El Monte, South Gate, South Pasadena, Temple City, Torrance, Vernon, Walnut, West Covina, West Hollywood, Westlake Village, and Whittier.
1. Consultation & Question Design
We start with a confidential discussion to understand your case and write precise yes/no questions.
2. Pre-Test Interview
We explain the process, review all questions, and ensure the examinee understands them fully.
3. Examination
We use state-of-the-art computerized polygraph equipment in a calm, professional setting.
4. Analysis & Results
We interpret the data and provide same-day verbal results, with optional written reports.
Accuracy & Reliability
Scientific studies show that properly conducted single-issue polygraph exams can reach 90–95% accuracy. While not always admissible in court, results can be powerful evidence in personal, employment, or legal contexts.
Frequently Asked Questions (FAQ)
Q: Do you offer mobile testing in Los Angeles County?
A: Yes, we can provide on-site testing for law firms, businesses, and private clients.
Q: Are results confidential?
A: Absolutely — we release results only to the authorized requesting party.
Q: Can polygraph tests be done in Spanish?
A: Yes, we offer full bilingual services.
Q: How long does a polygraph exam take?
A: Typically 1.5–2 hours, depending on the case.
Q: How soon can I get results?
A: Same-day verbal results are available, with a written report within 24 hours.
By offering services in every city across Los Angeles County, we make it easier for clients to access professional truth verification without long travel times. Local knowledge also helps us understand the specific needs of residents, attorneys, and businesses in each area.
Book Your Los Angeles County Polygraph Exam Today
Whether you’re in Santa Monica, Pasadena, Long Beach, Lancaster, or any other Los Angeles County city, Spectrum Polygraph Services is ready to provide accurate, confidential, and professional testing.