California Lie Detector provides advanced Computer Voice Stress Analysis (CVSA) and professional lie detection services throughout Northern California, including San Francisco, Santa Rosa, Sacramento, and the entire Bay Area, including Contra Costa County. Our state-of-the-art voice stress analysis technology delivers 98% accuracy rates for infidelity investigations, corporate theft detection, employment screening, criminal investigations, legal disputes, and law enforcement applications.
Unlike traditional polygraph testing, our non-invasive CVSA examinations analyze subtle voice patterns to detect deception with superior reliability and cost-effectiveness. Trusted by law enforcement agencies and private clients across Northern California, we offer confidential, professional truth verification services that provide definitive answers when you need them most.
Our certified examiners serve the Bay Area with cutting-edge deception detection technology that has revolutionized modern lie detection services.
CVSA voice stress analysis detects deception in cheating spouses with 98% accuracy by analyzing subtle voice patterns during questioning about infidelity, affairs, and relationship betrayals. Our advanced lie detector technology provides non-invasive infidelity testing to uncover adultery and restore trust through professional voice stress examination services.
Advanced CVSA technology identifies employee theft, embezzlement, and internal fraud by detecting stress responses during corporate investigations. Our voice stress analysis provides reliable evidence for workplace misconduct and helps protect your business assets.
Pre-employment CVSA examinations verify candidate honesty regarding work history, criminal background, and integrity concerns with superior accuracy. Our employment screening services help Northern California employers make informed hiring decisions through advanced voice stress analysis.
CVSA voice stress analysis assists law enforcement and private investigators in criminal cases by detecting deception during suspect interviews and witness statements. Our technology has helped solve complex criminal investigations throughout Northern California with validated confession rates.
Professional CVSA examinations provide reliable evidence for civil litigation, family law cases, and legal proceedings requiring truth verification. Our voice stress analysis services support attorneys and legal professionals with scientifically-validated deception detection technology.
Specialized CVSA training and services for Northern California law enforcement agencies, including suspect interviews, internal investigations, and officer screening. Our voice stress analysis technology is trusted by over 3,000 law enforcement agencies nationwide for reliable truth verification.
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.