Qualifications=academics usually & career experience. No way to know if they actually learned something and aren’t a fraud. Even corporations that do thousands of interviews get duped
- perhaps the judge make less experts interviews than the corporations, leading to less experience in that but also takes each of them more seriously.
- one way to remove/add some credit to someone claim is to ask some of their peers opinion and see if there’s a strong majority.
- the judge personal expertise may help him forge a precise opinion but that wouldn’t clear him of making a mistake.
For important matters it’s always a good idea to ask for peers reviews. Academics knows that too.