Nick Manfredi

Certified Polygraph Examiner

Nick Manfredi is a certified polygraph examiner and the owner of Insight Polygraph & Private Investigations. He graduated from Marston Polygraph Academy in San Bernardino, CA which is an accredited polygraph school by the American Polygraph Association (APA).  Nick is certified in Behavior Analysis Investigative Interview and Interrogation Techniques (BATI Certification).  He also received his Law Enforcement Investigation Certification through the Los Angeles County Sheriff's Department.  Nick is an active member in the American Polygraph Association (APA), the California Association of Polygraph Examiners (CAPE), and the American Association of Police Polygraphists (AAPP).  Nick earned his Bachelor’s of Science Degree in Organizational Leadership from Azusa Pacific University, in Azusa, California.

Nick is a licensed private investigator by the State of California - Department of Consumer Affairs (License Number PI188045). 

Nick is a retired police lieutenant and detective bureau commander.  He is currently a law enforcement polygraph examiner and conducts pre-employment and criminal polygraph testing. He has worked in law enforcement since 1987 and has extensive experience in the following areas: Investigations, polygraph, interview, and interrogation techniques, credibility assessment interviews, and behavior analysis.  Nick served in the United States Marine Corps and was honorably discharged as a sergeant.

Nick Manfredi

American Polygraph Association

American Polygraph Association

California Association of Polygraph Examiners


Contact Info

Insight Polygraph &
Private Investigations
1814 S. Commercenter West, Suite B
San Bernardino, CA 92408
Phone: (909) 918-6202

Company Info

Based in San Bernardino, Insight Polygraph & Private Investigations serves the San Bernardino, Riverside, Orange, and Los Angeles County regions of Southern California.