They must present information that goes beyond first hand observation, opinions and hearsay not permitted under ordinary rules of evidence.

他们就必须提出根据一般证据规则所不允许的直接观察资料、观点和传闻之外的知识。

youdao

Of course the NCAA, Auburn, another member institution, a real and sober journalist, or some hearsay-free person of first-hand knowledge may still reveal facts of serious NCAA violations by Cam alone.

FORBES: The Heisman Voters' Dilemma: Facts Vs. Faith