It is up to the marking station to enforce the rule. The SHU makes the rule, the members ensure it is followed. Let's put it this way, as a SHU delegate I have no way of knowing what is actually happening, so I have no way of enforcing the rule. If a dispute is brought to the SHU regarding this rule, then I will be in the position to enforce the rule and it will be my duty so to do. Thus the statement regarding the test case, whether that be because of a refusal to allow a bird carrying ID, or because an owner refused to place ID on their bird.