Why do you have a problem with his evaluation of Biden? We don't need to see his credentials, just the 5 hour transcript, and we can decide for ourselves.
but I don't recall Robert Hur claiming to be a doctor...(I sure you can find verify his lawyer's "credentials" and licensing status quite easily online, though...My teaching credentials are available on line as well-an easy find...
You're obviously confused about interviewing, evaluating, observing, and assessing...teachers do the same every day....especially those developing IEPs...We do work with psychologists, to more formally test, but those types of evaluations are not daily...very obviously... Any more questions, just ask...