Why only Christine Ford (the alleged victim) was required to undergo a polygraph test and Kavanaugh (the alleged culprit) was not?

Why only Christine Ford (the alleged victim) was required to undergo a polygraph test and Kavanaugh (the alleged culprit) was not?

Ford wasn't required either. She took it voluntarily.

The better question is: why did K. Refuse to take one? Polygraphs are not admissable in court but in job interviews / Senate hearings they sure bolster a person's credibility.

She wasn't required

She took the polygraph by her own choice, it's not a requirement. Polygraphs are easly fooled.

She wasn't required to take a polygraph. She did so of her own volition to help prove her case. She was asked only two questions, neither of which mentioned Kavanaugh, that addressed her memory of events.

Because polygraph test are not accurate. Even Dr. Ford allegedly coached people on how to pass them.

Ford volunteered to undergo a polygraph to bolster her allegation. Kavanaugh refused. No matter, Republicans disregarded the allegation and polygraph, anyway.

She wasn't required, she volunteered.