Depends on the state's law, I think..
Maybe that's just the case in GA..
British law seems to require taping of all interviews/interrogations..
I know in some states that interviews/interrogations are taped..
Not sure if that includes polygraph exams as well, but I would assume that it would be considered same as any other questioning by the police..
Per the LE presser, LE said, something to the effect, that anyone with a grain a salt would not video tape a polygraph.
http://www.accessnorthga.com/news/hall/newfullstory.asp?ID=91882
Wilbanks' fiance takes lie detector test, passes
DULUTH - The fiance of a missing bride-to-be passed a private lie detector test, but will not agree to a polygraph conducted by authorities unless the test is video taped.
Police Chief Randy Belcher said during a press conference this afternoon John Mason's request is unusual for the FBI and Georgia Bureau of Investigation.
(snip)
Do the British even allow the use of polygraph? The US, along with only two or three (or so) countries even allow the polygraph to be used AT ALL! Most realize the machine has way to many faults to be of any real value. Unfortunatly, here in the US many believe the machine to be an honest dectector of truth-which could not be farther from the truth!
Whether he passes any such test or not has little to do with the real use of the machine-the police use it to get as much info out of you as they can to ease their investigation-that is the real value of the machine to police.