"The defence case is that Mrs Geal was illegally wild, native bird in captivity in that aviary and also, in effect, you may think, that she has fabricated evidence, such as the two birds in the nesting box. The law permits a jury to hear about the character of the person who is making an attack of that kind against a prosecution witness. This is a trial in which the truthfulness or otherwise of the evidence of Mrs Geal on the one hand and Mr Hearne on the other, is crucial and what really matters in this trial is the evidence that each of those witnesses gave as to the facts of this incident. So the evidence about Mr Hearne's previous convictions is no more than background. It is something that may assist you when you are assessing whether his evidence before you in this trial was truthful."
"... it is only fair that the jury should have before them material on which they can form their judgment whether the accused person is any more worthy to be believed than those he has attacked..."
"It should not be to show that he has a disposition to commit the type of offence with which he is charged."