Relevant Questions

Doug Williams – Polygraph Expert

A special sneak preview of next season!

Doug Williams has been waging a one man war for decades against the polygraph machine (aka the lie detector).

To learn more about Doug’s life and work, check out

For more information on the polygraph, this site is a wealth of knowledge.

Playlist and transcript coming soon.

Published on: June 16, 2017

From: Season 6

Producers: ,

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