"To justify the reception of fresh evidence for a new trial, three conditions must be fulfilled. First it must be shown that the evidence could not have been obtained with reasonable diligence for use at the trial, secondly the evidence must be such that if given, it would probably have an important influence on the result of the case. That need not be decisive. Thirdly, the evidence must be such that is presumably to be believed, or in other words it must be apparently credible, though it need not be incontrovertible."