Polygraph Expert Shows How to Beat a Lie Detector Test

(6:19)

Ask A Polygraph Expert: How Do You Spot A Liar?

(7:7)

Doug Williams - Polygraph Expert tells how to pass your polygraph test.

(2:32)

How accurate are polygraph tests?

(1:42)

Polygraph expert, Doug Williams, tells why he teaches people how to pass a polygraph test.

(2:26)

Doug Williams, polygraph expert exposes the myth of \

(3:)

Polygraph Expert Doug Williams - Questions

(2:26)

Polygraph Expert Explains How to Detect Lies with a 97% Outcome Confidence

(45:50)

How it Works: Polygraph Test

(3:37)

Fooling A Lie Detector | Man V Expert

(2:58)

The Importance of Having a Good Polygraph Examiner: With Stephen Cabler

(4:42)

Polygraph Expert Doug Williams - Welcome

(2:32)

How to become a Polygraph (Lie Detector) Examiner, Global Polygraph Network

(2:1econd)

Doug Williams - The Polygraph Expert

(3:32)

Polygraph Tests... Exposed!

(4:13)

STEAM Series: Polygraph Examiner

(2:56)

Choosing The Right Polygraph Examiner

(1:13)

Polygraph \

(51:15)

STEAM Series: Polygraph Examiner

(2:11)

Who Hires a Polygraph (Lie Detector) Examiner? Global Polygraph Network

(1:53)