do govt agencies pee test prior to/after taking polygraph?

[polywantsacracker]

wanting to know if this is done, particularly if you are having a re-test and now all of a sudden you "pass."

[George W. Maschke]

Numerous federal agencies require applicants to piss in a cup for drug testing at some point during the hiring process, but to the best of my knowledge, none are testing for pharmacological countermeasures to the polygraph.