In the case of "Wilson v. Rastall", as in some other cases, the indication of a potentiality of an expansion of this side of the law of evidence. "I have always understood", Lord Kenyon said, giving judgment, "that the privilege of a client only extends to the case of the attorney for him. Though whether or not it ought to be extended farther, I am happy to think may be inquired into in this cause." He meant that the matter would not be definitely concluded as an appeal would be possible.