NITV FS is the Sole Source and Manufacturer of the CVSA. The CVSA is sold only to government agencies. For further information on the AEC or the CVSA, call 561-798-6280, visit our Web site CVSA1.com, ...
PERRYVILLE, Mo. -- When Perry County detective Brian McCain was sent four years ago to become a certified user of a Computer Voice Stress Analyzer -- a truth verification device -- he was skeptical.
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