Polygraphy Unit
A polygraphy unit is a tool used to measure and record multiple physiological responses from a subject under investigation. It is commonly used in law enforcement and security investigations, to detect crime or deception. Polygraphy units measure and record physiological responses such as galvanic skin response, respiration, pulse rate and blood pressure in the subject while they answer a series of questions. By measuring physiological activity, the unit can help identify if a subject is providing truthful or deceptive answers. As such, it is a valuable tool for solving criminal cases and ensuring security in various situations.
← Journal of Advanced Forensic Sciences