at 50 I to appear before a school disciplining board I would arrive with a tape recorder inform them that I was recording. listen to what they had to say when they got done pontificating I would hand them the business card of my lawyer and just walk out with out saying anything. if they took any action I would sue. it is none of there dam business what I believe or what I post as long as I am not harassing a specific student or making threats of violence. You engage with theses people as little as possible because they will twist what ever you say especially if you have conservative beliefs.
Absolutely, this student faces only dangers from interacting with this Soviet administration in any way. He should get good legal advice immediately (FIRE will provide same for free), and not attend any meeting at all.... or if he does attend he should say nothing but “I am here to listen.” They are looking for any and every way to fry his butt now. He is in peril and needs to trust no one except expert legal advisors who are on HIS team.