If you knew he was lying why did you let him dive?
We let him dive because the shop he represents had paid for a spot on the dive for one of their representatives. We are not there to stop him from diving, we are not even there to stop him from teaching. We can only let him know the rules and the consequences of not following them. It is not my place to enforce my own set of rules as long as no one is being put in any danger. As it was, neither myself or the other divemaster from our shop observed him doing anything in the water that was out of place for the guides that come with the groups. I like to think that when presented with the situation, he made some better choices. All I have to go on is what I observed.