I see your point...I retired from LEO, and I must confess I know a lot of officers that will gladly give you're their opinion of the law and be wrong. I don't think it is intentional, just if the question is outside the daily dealings with statues.
Hell I've even done this a few times....When someone walks up and asks you rather than telling them you do not know; you give them your interpretation.
I was broken of this by a wise old Sargent one day when I gave bad advice. The Sargent embarrassed me but at least the citizen did not leave with my bad advice. From that point forward I would not give my opinion on any law but refer them to a Judge or Attorney.
I've even seen attorneys that can give bad advise...
I think the State should give these students some assistance...