The Court of Appeal has dismissed Keith O’Neill’s appeal against his conviction for the murder of John Wilson, rejecting challenges to the trial judge’s comments to the jury and the admission of firearm-residue evidence.
The judgment, delivered by Mr Justice McCarthy on 27 July 2022, concerned a conviction entered at the Central Criminal Court. The Court of Appeal considered two grounds of appeal and rejected both. It did not conduct a new trial or make a new finding of guilt; the appeal against conviction was dismissed.
The prosecution case at trial was circumstantial. The judgment records that Wilson was shot at his home in Ballyfermot, Dublin, on 28 September 2012. Witnesses saw a hooded, masked assailant leave in a vehicle but could not clearly identify the person. The prosecution relied on several strands of evidence, including a stolen car found burnt out, clothing and other items recovered during the investigation, CCTV footage, and evidence that O’Neill had discarded bags containing clothing.
A forensic scientist, Dr Thomas Hannigan, found 18 particles on or in clothing recovered from one of the bags that were characteristic of, or consistent with, firearm residue. He explained that particles described as consistent could also come from other sources. The defence challenged the evidence, including how the clothing had been collected and handled, and raised the possibility of contamination. Dr Sheila Willis, a defence witness and former director of Forensic Science Ireland, gave evidence about best practice in collecting and preserving forensic material.
O’Neill’s first appeal ground argued that the trial judge’s interventions during cross-examination and comments in the jury charge were excessive and made the evidence seem unbalanced. The Court of Appeal assessed the charge as a whole. It said the judge could comment on the evidence to help the jury, provided it remained clear that the factual decisions and verdict were for them. The court was not persuaded that the judge’s comments undermined the cross-examination or affected the jury’s role.
The second ground challenged the admission of Dr Hannigan’s evidence, arguing that concerns about contamination and the report’s evaluation made it unfair to put before the jury. The Court of Appeal held that the objections went to the evidence’s weight rather than its admissibility. It noted that the jury heard the defence evidence and that Dr Hannigan was extensively cross-examined. The court said the jury could accept or reject the expert evidence after considering it alongside the other evidence.
The court rejected both grounds and dismissed the appeal.