Some clan was actually found out to be abusing their server like this, and it got disconnected from the database and people were banned. The more trust has been abused, the harder it is to give, even to new people.
That said, I agree with giving him a chance if keeping tabs is at all possible. The few with enough trust and authority are regularly otherwise occupied though. A regular admin would have no power there, and would have a very hard time verifying and proving all but the most blatant abuse.
