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What is a polygraph? How does it aid in criminal investigation?

What is a polygraph? How does it aid in criminal investigation?

What is a polygraph? How does it aid in criminal investigation? Do you think polygraph information should be admissible as evidence in a criminal case?

 

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Polygraph

What is a polygraph?

According to Osterburg & Ward (2010), a polygraph refers to an instrument used to record physiological changes in an individual undergoing any form of questioning that seeks to obtain deception or truth. This instrument comprises of six sensors that are normally attached to the individual being exposed to the test. These senses have the ability to record galvanic skin resistance, cardiovascular activity, and respiratory activity. The person……………….

What is a polygraph

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