“In any proceedings where evidence is admissible of the fact that the accused has committed an offence, if the accused is proved to have been convicted of the offence – (a) by or before any court in the United Kingdom … (b) he shall be taken to have committed that offence unless the contrary is proved.”
“In any proceedings the court may refuse to allow evidence on which the prosecution proposes to rely to be given if it appears that, having regard to all the circumstances … the admission of the evidence would have such an adverse effect on the fairness of the proceedings that the court ought not to admit it”. (a) by or before any court in the United Kingdom … (b) he shall be taken to have committed that offence unless the contrary is proved.”
“… the stark principle … that any defendant is entitled to contest his guilt in accordance with the ordinary processes of the criminal justice system, and therefore to challenge or to seek to undermine the Crown’s case against him or to advance evidence in support of his own case”