In a world full of uncertainty, the truth is your most powerful asset. Whether you’re facing legal challenges, corporate concerns, or personal disputes, our specialized services deliver answers when you need them most.
Of The CVSA Examinations Produced A "Stress Indicated" Result
of those resulted in validated confessions
of interviews conducted, suspects made self-incriminating confessions
Not a theory. Not a gut feeling. The truth.
California Lie Detector runs professional polygraph and Computer Voice Stress Analysis (CVSA) examinations for people throughout Northern California who are done guessing. Individuals who suspect a partner. Attorneys building a defense. Business owners who think someone on the inside is stealing. Families trying to settle something that has gone on too long.
CVSA is the same technology law enforcement uses. It reads involuntary stress responses in the voice that no one can fake and no one can hide. When someone is lying, it shows.
We serve clients in person in Chico, Yuba City, Redding, and Vallejo. For CVSA, we work remotely by phone or video anywhere in Northern California.
Results are typically available the same day. A full written report follows within 24 to 48 hours.
If you are ready to stop wondering and start knowing, one call is all it takes.
Confidential. No pressure. No judgment.
Not every case produces clean, verifiable data. We applied five strict criteria to isolate only the cases where results could be independently confirmed. The numbers you saw above come from those cases only.
The CVSA examiner was briefed by the requesting authorities in order to become familiar with the circumstances of each case.
A pre-test interview with the subject was conducted.
The initial test questions were formulated and presented to the subject. Examinations contained from 9-31 questions, consisting of relevant, irrelevant, and control questions for which the subject provided "yes" or "no" answers.
The fourth step included processing the responses with the CVSA instrument, after which the resulting CVSA charts were analyzed and interpreted by the examiner.
If stress patterns associated with specific relevant questions were observed by the examiner, an opportunity was given for the subject to provide additional clarification regarding stress.
Provide a conclusion regarding the outcome of the CVSA examination. If the relevant questions produced a "No Stress" chart, the subject was "cleared" by the CVSA procedure then procedure will be turned over to the requesting agency.
