A LIE DETECTION TECHNIQUE FOR PHYSICAL DECEPTION

A Polygraph that measures and records physiological symptoms such as pulse, blood pressure, respiration, sweating and skin conductivity, when a person is asked series of questions. This method is popularly referred as detection tests. Polygraphs are used as interrogation tool with over crime suspects in several countries. The physiological symptoms are examined using ECG graphs for lie detection. Our skin changes conductivity depending on many different things is termed as Electro dermal activity (EDA). In this system, the lie is detected by a small portable “ARDUINO LIE DETECTOR”