West Palm Beach, FL, February 21, 2019 – Corrections agencies/prison systems throughout the US have been acquiring an investigative tool that has allowed them to quickly solve crimes in what has been described as ‘a city of criminals’. Record number of Law...
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Latest Law Enforcement Technology Replaces Old, Less Accurate Systems
West Palm Beach, FL, February 13, 2019 – A record number of Law Enforcement agencies have quietly been replacing their old polygraphs with a system that, according to an independent, peer-reviewed, published 18-year study, has an accuracy rate of 98%. Even users of...
Latest Law Enforcement Technology Unveiled
West Palm Beach, FL November 26, 2018 - NITV Federal Services (NITV FS) has announced the debut of the Computer Voice Stress Analyzer III (CVSA®III). First introduced in 1988 as a replacement for the old polygraph, the CVSA became an immediate success at every law...
Law Enforcement Embracing Improved Accuracy and Efficiency of New Crime Fighting Technologies
DNA and the Computer Voice Stress Analyzer Help Clear Innocent/Find Guilty Lewes, DE – November 7, 2018 - Innocent people are being exonerated in record numbers as new technologies such as DNA become more sophisticated and the Computer Voice Stress Analyzer (CVSA®) is...
Scientific Study Summary: Hasan, Y. (2017). “Violent Video Games Increase Voice Stress: An Experimental Study.” Psychology of Popular Media Culture 6(1), 74-81.
In the field of law enforcement, voice stress analysis technology such as the Computer Voice Stress Analyzer (CVSA ®) is used in a range of applications, including criminal investigations, employment interviews, and immigration investigations. The CVSA detects changes...
CVSA Reliability: How is Stress Linked to Vocal Changes?
Violence measurably increases stress levels and the CVSA can accurately detect changes in psycho-physiological stress. Image source: Flickr user Joannie Dennis ©. Scientific Study Summary Information in this article derived from: Hasan, Y. (2017). “Violent Video...
I Used To Get Confessions, But…….
by Charles Humble, Founder, NITV Federal Services The most common refrain that students mention on their critique forms at the Annual Advanced Examiners/Re Certification Course conducted by the NITV Federal Services is that they realized they had been cutting corners...
Multi-Utterance Analysis
by Charles Humble, Founder, NITV Federal Services As many of you are aware that have attempted to utilize the CVSA for analysis of multi-utterances (unstructured interviews), it was fairly difficult. I recall that early on in my career in voice stress analysis (1978)...
Pre-Employment CVSA Testing Protocols
By Cliff Payne In law enforcement and government agencies no management function is more crucial than hiring the right person. Hiring the “wrong” person in the business world can result in loss of sales and customers, in police work the stakes are much higher...
The Advantages of the Structured/Covert CVSA Examination
What’s all the hype about the CVSA and the technique of analyzing audio recordings to get results? It is the art of capitalizing on the most underutilized technical capability of the CVSA; analyzing properly formatted and recorded Structured/Covert interviews. The...