court should not have decided in favour of the particular party unless it also decided point B in his favour; but point B was not argued or considered by the court. In such circumstances, although point B was logically involved in the facts and although the case had a specific outcome, the decision is not an authority on point B . Point B is said to pass sub silentio. For example, In Gerard v. Worth of Paris Ltd. [(1936) 2 All ER 905 (CA).] , the only point argued was on the question of priority of the claimant's debt, and, on this argument being heard, the Court granted the order. No consideration was given to the question whether a garnishee order could properly be made on an account standing in the name of the liquidator. When, therefore, this very point was argued in a subsequent case before the Court of Appeal in Lancaster Motor Co. (London) Ltd. v. Bremith Ltd. [(1941) 1 KB 675 : (1941) 2 All ER 11 (CA).] , the Court held itself not bound by its previous decision. Sir Wilfrid Greene, M.R., said that he could not help thinking that the point now raised had been deliberately passed sub silentio by the counsel in order that the point of substance might be decided. He went on to say that the point had to be decided by the earlier court before it could make the order which it did; nevertheless, since it was decided “ without argument, without reference to the crucial words of the rule, and without any citation of authority”, it was not binding and would not be followed. Precedents sub silentio and without argument are of no moment . This rule has ever since been followed. One of the chief reasons for the doctrine of precedent is that a matter that has once been fully argued and decided should not be allowed to be reopened. The weight accorded to dicta varies with the type of dictum. Mere casual expressions carry no weight at all. Not every passing expression of a Judge, however eminent, can be treated as an ex cathedra statement, having the weight of authority. “