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  • About Us
  • Services
    • Adverse History Polygraph Exam
    • Attorneys, PIs & Legal Professionals
    • Domestic Issues Polygraph Exam
    • Domestic Issues Polygraph Exam FAQ
    • Fidelity Issues Polygraph Exam
    • Financial Issues Polygraph Exam
    • Legal & Civil Matters Polygraph Exam
    • Personal Reasons Polygraph Exam
    • Pre-Employment & Background Screening
      • Police Candidate FAQ
    • Specific Issues Polygraph Exam
    • Ulterior Motivations Polygraph Exam
    • Unsanctioned Activities Polygraph Exam
    • Workplace & Internal Investigations
  • Examanes En Español
    • Asuntos de Fidelidad Examen De Poligrafo
    • Actividades No Autorizadas Examen De Poligrafo
    • Asuntos Financieros Examen De Poligrafo
    • Historial Adverso Examen De Poligrafo
    • Motivaciones Ulteriores Examen De Poligrafo
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    • Los Angeles County
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Contact Us for Legal & Investigative Polygraph Services

If you're a private investigator or attorney looking to uncover the truth, contact Spectrum Polygraph Services today.

At Spectrum Polygraph Services, we provide professional, confidential polygraph examinations to support legal professionals, private investigators, and attorneys across Southern California. 

Legal & Investigative Support You Can Count On
Our services are designed to help you evaluate truthfulness, uncover inconsistencies, and strengthen case strategies.

Services for Attorneys & Investigators Include:

- Civil Case Support - Client Credibility Evaluations - False Accusation Defense
Why Legal Professionals Work With Us
- Certified polygraph examiners - Testing available in English and Spanish - Mobile testing available upon request
Confidential, Case-Specific Testing
Every polygraph examination is tailored to meet your specific investigative. We maintain strict confidentiality, ensuring client information is never shared without written consent.

Polygraph Exam Flexibility

We understand the need for flexibility and discretion. That’s why Spectrum Polygraph Services offers examinations at our office for a controlled environment. We can also travel to your location, whether it’s a law firm, or investigative agency, to accommodate your specific needs. 

Criminal Case Polygraph Exam – Spectrum Polygraph Services
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    • Polygraph Basics & Education
      • What to Expect During a Polygraph Exam
      • What Questions Can Be Asked in a Polygraph?
      • Top 10 Misconceptions About Lie Detector Tests
      • The History of the Polygraph: How Lie Detector Testing Evolved
      • Is It Possible to Beat a Polygraph Test? The Truth About Countermeasures
      • How Accurate Are Polygraph Tests? Debunking the Myths
      • How to Prepare for a Polygraph Test: Tips for Best Results
      • Polygraph Examiner Credentials – What Makes a Professional?
    • About Our Services
      • Mobile Polygraph Exams – We Come to You
      • Why Spectrum Polygraph Services is Southern California’s Trusted Provider
    • Immigration & Government Cases
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      • Fraud Alert: How To Avoid Being Scammed by Polygraph Examiners
      • Why You Should Choose a Polygraph Company with Quality Control
    • Professional, Corporate & Employment
      • Polygraph Exams for Tournaments & Competitive Events
      • Polygraph Exams for Private Investigators – Partnering for Results
      • The Role of Polygraph in Pre-Employment Background Checks
    • Relationship & Domestic Issues
      • Polygraph Testing for Infidelity Cases
      • Polygraph Exams for Domestic Issues: Resolving Conflict Through Truth
      • Bilingual Polygraph Services – Why Language Matters in Testing
      • Failed a Drug Test? How a Polygraph Exam Can Help Clarify the Truth
      • Polygraph Exams for Theft & Other Losses (Non-Employment Related)
    • Legal & Court-Related Testing
      • Legal Uses of Polygraph Testing in California
      • Polygraph Exams for Civil Litigation Support
      • Why Attorneys Recommend Polygraph Tests
      • Can You Refuse a Polygraph Test? Legal Rights Explained
      • How Polygraph Helps in Child Custody or Domestic Disputes
  • About Us
  • Contact Us
  • Privacy Policy
  • Terms & Conditions
  • Blog
    • Polygraph Basics & Education
      • What to Expect During a Polygraph Exam
      • What Questions Can Be Asked in a Polygraph?
      • Top 10 Misconceptions About Lie Detector Tests
      • The History of the Polygraph: How Lie Detector Testing Evolved
      • Is It Possible to Beat a Polygraph Test? The Truth About Countermeasures
      • How Accurate Are Polygraph Tests? Debunking the Myths
      • How to Prepare for a Polygraph Test: Tips for Best Results
      • Polygraph Examiner Credentials – What Makes a Professional?
    • About Our Services
      • Mobile Polygraph Exams – We Come to You
      • Why Spectrum Polygraph Services is Southern California’s Trusted Provider
    • Immigration & Government Cases
      • Polygraph Testing for Immigration and Asylum Cases
    • Polygraph Ethics, Fraud & Consumer Protection
      • Fraud Alert: How To Avoid Being Scammed by Polygraph Examiners
      • Why You Should Choose a Polygraph Company with Quality Control
    • Professional, Corporate & Employment
      • Polygraph Exams for Tournaments & Competitive Events
      • Polygraph Exams for Private Investigators – Partnering for Results
      • The Role of Polygraph in Pre-Employment Background Checks
    • Relationship & Domestic Issues
      • Polygraph Testing for Infidelity Cases
      • Polygraph Exams for Domestic Issues: Resolving Conflict Through Truth
      • Bilingual Polygraph Services – Why Language Matters in Testing
      • Failed a Drug Test? How a Polygraph Exam Can Help Clarify the Truth
      • Polygraph Exams for Theft & Other Losses (Non-Employment Related)
    • Legal & Court-Related Testing
      • Legal Uses of Polygraph Testing in California
      • Polygraph Exams for Civil Litigation Support
      • Why Attorneys Recommend Polygraph Tests
      • Can You Refuse a Polygraph Test? Legal Rights Explained
      • How Polygraph Helps in Child Custody or Domestic Disputes
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