Computer Voice Stress Analysis (CVSA) has been successfully used in Law Enforcement since the 1980’s. It has developed leads and led investigators to solve countless numbers of crimes. It has also led to thousands of confessions from cold case suspects.
What is not as well-known is the CVSA’s ability to protect the innocent. Because of CVSA’s origin in law enforcement, historically it is not as readily available to the criminal defense industry. This is because CVSA certification is only available to Law Enforcement officers with extensive investigation experience. However, CVSA examiners from Law Enforcement can choose to continue their certifications after they retire, which makes the CVSA exams available outside of government agencies.
This link is a six-minute video showing the effectiveness of the CVSA in a murder investigation.
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