For California polygraph examiners who want the investigative license

 https://youtu.be/cQK3r95aQRM

This polygraph blog has had 89,000 views

 This polygraph blog has had 89,000 views

https://polygraphliedetection.blogspot.com/

For California polygraph examiners that want to acquire the other protective services abilities:

http://thepigroup.com/ppo-license-test-information-videos.html 

Lie-detector test in Los Angeles California

 For a Los Angeles lie-detector test, visit http://visionpolygraphservices.com/