"In a case in which it is necessary for a jury to decide whether an act is dishonest, the proper course is for the trial judge to identify the knowledge, belief or intent which is said to render that act dishonest and to instruct the jury to decide whether the accused had that knowledge, belief or intent and, if so, to determine whether, on that account, the act was dishonest. Necessarily, the test to be applied in deciding whether the act done is properly characterised as dishonest will differ depending on whether the question is whether it was dishonest according to ordinary notions or dishonest in some special sense. If the question is whether the act was dishonest according to ordinary notions, it is sufficient that the jury be instructed that that is to be decided by the standards of ordinary, decent people. However, if 'dishonest' is used in some special sense in legislation creating an offence, it will ordinarily be necessary for the jury to be told what is or, perhaps, more usually, what is not meant by that word. Certainly, it will be necessary for the jury to be instructed as to that special meaning if there is an issue whether the act in question is properly characterised as dishonest[100]."