Officials exercise exceptional authority, which in turn requires them to assume
exceptional responsibilities. Their overall effectiveness, no matter what their
particular duties, depends not only on their technical competence and intimate
knowledge of the rules, but also on their maturity of judgement, self control, flexibility
and basic fairness and integrity. Beyond this, all officials must be scrupulously careful
to guard against any appearance or actuality of interest. In all questionable cases it is
always wiser to acknowledge a possible source of a conflict and stand aside rather
than permit suspicions to gain strength.