LIE DETECTOR SLIDES

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LIE DETECTOR : 

LIE DETECTOR

introduction : 

introduction Why are the polygraphs introduced? What are polygraphs? What is the lie behind the lie detector?

lie detector : 

lie detector It is an instrument which is a combination of medical devices that are used to monitor changes occuring in the body

TYPES OF POLYGRAPHS : 

TYPES OF POLYGRAPHS Analog polygraphs Digital polygraphs

ANALOG POLYGRAPHS : 

ANALOG POLYGRAPHS

DIGITAL POLYGRAPHS : 

DIGITAL POLYGRAPHS

CIRCUIT DIAGRAM : 

CIRCUIT DIAGRAM

POLYGRAPH EXAMINERS : 

POLYGRAPH EXAMINERS During a polygraph exam there are only two people in the room. One is the person conducting the exam and the other is the subject.

LIE DETECTOR TEST : 

LIE DETECTOR TEST Pretest Design questions Intest Post test

Counter Measures : 

Counter Measures Sedatives Antiperspirant on fingertips Tacks placed in the shoe Biting tongue, lip or cheek

CONCLUSION : 

CONCLUSION There is the possibility of two types of errors to occur falsepositive and falsenegative. So this should not be the only basis to punish a person on his crime.

THANK YOU : 

THANK YOU ANY QUERIES???

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