“The principle that, once the summing up is concluded, no further evidence ought to be given, must be maintained in every case, and, if further evidence is allowed at that stage, … the conviction will be quashed.”
“It has always been a very strict rule of this court that no evidence whatever must be introduced after the jury have retired.”
“It is hardly necessary to say that an action of this kind runs counter to all the guidance which this court has given from time to time … It can never be right for a jury to be provided with something which has not been part of the evidence in the trial.”