You're correct..Babbin said that polugraph results are not admissible, but he reiterated that under the code of secrecy, or whatever it is they sign..FAILURE to submit to a request for a polygraph is immediate grounds for loss of security clearance and access..
Types of security clearances:
The scope of investigative work needed to grant a security clearance depends on the level of clearance being requested. There are three basic levels of security classification:
This refers to material, which, if improperly disclosed, could be reasonably expected to cause some measurable damage to the national security. The vast majority of military personnel are given this very basic level of clearance. This level needs to be reinvestigated every fifteen years.*
The unauthorized disclosure of secret information could be expected to cause serious damage to the national security. This level is reinvestigated every ten years.*
Individuals with this clearance have access to information or material that could be expected to cause exceptionally grave damage to the national security if it was released without authorization. This level needs to be reinvestigated every five years.*
* Reinvestigations are more important than the original investigation because those individuals who have held clearances longer are more likely to be working with increasingly critical information.