“Forensic science, often so very helpful to everyone in the justice system, has been unable to assist you greatly on these issues in this case, you may think, as it sometimes can, but that does not matter; there is no evidence and so do not speculate about it.” vi) Some footwear marks were found which were a better match with those of the claimant than Dawn Walker. There was no specific association with the claimant. vii) Four sperm cells were found on Dawn Walker’s body, two in the pubic region and two on the inner thigh. Vaginal and anal swabs did not show the presence of semen. The claimant had had a vasectomy. There was medical evidence that it was highly unlikely that he would produce sperm. There was no evidence that Dawn Walker had been sexually attacked when alive. To counter the suggestion made on behalf of the claimant that the sperm had got on to her body through direct contact, probably through masturbation by the murderer over her dead body, the Crown recalled Helen Howarth. Her evidence was that it was unlikely that the sperm had drained from the anus or vagina. It was impossible to analyse the donor of the sperm from a DNA profile. She could not say when it was deposited. She gave evidence that it was possible that the sperm had been deposited on her body by secondary or tertiary transfer. Dawn Walker had been to a gym and there was evidence she had used the male changing room; it was possible that there could have been secondary or tertiary transfer. Her report stated that the sperm samples had been retained for future testing “when the technology has advanced”
“It is essential to the health and proper functioning of a modern democracy that the citizen accused of crime should be fairly tried and adequately protected against the risk and consequences of wrongful conviction. To this end, police operations to investigate crime and interrogate suspects are closely controlled by statutes, codes and rules; the conduct of prosecutions is entrusted to an independent, professional prosecuting authority; and legal aid is made available to fund all but the very well-to-do to defend themselves in serious cases. The main protection of the citizen accused of serious crime is, however, to be found in our system of trial by judge and jury. This system is so familiar as to require no description. But we draw attention to two characteristic features of jury trial germane to this application. First, the procedure is adversarial. There is no duty on the trial judge, as in an inquisitorial proceeding, to investigate what defences might, if pursued, be open to a defendant, nor to interrogate or call witnesses. It is the function of the judge to direct the jury on the relevant law and to summarise (perhaps very briefly) the evidence, and to define the issues raised by the prosecution and the defence, including any possible defence disclosed by the evidence even if not relied on by the defendant. The judge need not, and should not, go further. Secondly, the decision on the defendant's guilt is made following a trial, continuous from day to day, by a jury assembled only for that trial, with no responsibility for the proceedings before the trial begins or after it ends. Thus the decision-making tribunal must reach its decision on the argument and evidence deployed before it at a final, once-for-all, trial. A defendant may quite properly put forward defences cumulatively and alternatively at a single trial, but not serially at different trials.”
“I hope that in the exercise of the privilege granted by the new Act to counsel for the prosecution of summing up the evidence, they will not cease to remember that counsel for the prosecution in such cases are to regard themselves as ministers of justice, and not to struggle for a conviction, as in a case at Nisi Prius – nor be betrayed by feelings of professional rivalry – to regard the question at issue as one of professional superiority, and a contest for skill and pre-eminence.”
“It cannot be over-emphasised that the purpose of a criminal prosecution is not to obtain a conviction; it is to lay before a jury what the Crown considers to be credible evidence relevant to what is alleged to be a crime. Counsel have a duty to see that all available legal proof of the facts is presented; it should be done firmly and pressed to its legitimate strength, but it must also be done fairly. The role of prosecutor excludes any notion of winning or losing; his function is a matter of public duty than which in civil life there can be none charged with greater personal responsibility. It is to be efficiently performed with an ingrained sense of the dignity, the seriousness and the justness of judicial proceedings.”
“not the property of the Crown for use in securing a conviction, but the property of the public to be used to ensure that justice is done.”
“Post Conviction 59. The interests of justice will also mean that where material comes to light after the conclusion of the proceedings, which might cast doubt upon the safety of the conviction, there is a duty to consider disclosure. Any such material should be brought immediately to the attention of line management. 60. Disclosure of any material that is made outside the ambit of the Act will attract confidentiality by virtue of Taylor v SFO [1998].” 25. The CPS guidance entitled Reviewing Previously Finalised Cases – CPS policy is similar. Paragraphs 1 and 2 state: “A review may be required as a consequence of a subsequent trigger, which requires the reconsideration of the safety of convictions, or decisions not to proceed, and an assessment whether justice is served by allowing such convictions, or decisions, to stand. Examples of scenarios where a review of past convictions may be required are set out in paragraph 6 below.”
“A. Where the competence and/or credibility of an expert witness or the methodology the expert witness has used is in doubt. C. Where a new scientific breakthrough raises questions over the safety of earlier convictions”
“Thus the Commission's power to refer under section 9 is exercisable only if it considers that if the reference were made there would be a real possibility that the conviction would not be upheld by the Court of Appeal. The exercise of the power to refer accordingly depends on the judgment of the Commission, and it cannot be too strongly emphasised that this is a judgment entrusted to the Commission and to no one else.”