R v Adam Courtney-Kasher
[2024] EWCA Crim 256
The safety of a conviction is undermined if new material could reasonably have affected the jury's decision.
Dial and Dottin v State of Trinidad and Tobago [2004] UKPC 4
Competence of a witness to give evidence is determined by statutory criteria (Youth Justice and Criminal Evidence Act 1999, sections 53(1) and (3)).
Youth Justice and Criminal Evidence Act 1999
Bad character evidence may be admissible if it has substantial probative value regarding a witness's credibility (R v Clark [2016] EWCA Crim 2030).
R v Clark [2016] EWCA Crim 2030
The Court of Appeal may grant leave to appeal on additional grounds, even if previously rejected, if there is cogent evidence or argument not previously properly developed (R v Knights [2017] EWCA Crim 1052).
R v Knights [2017] EWCA Crim 1052
Expert evidence must comply with Part 19 of the Criminal Procedure Rules.
Part 19 Crim PR
Appeal dismissed.
The Court found that the new material, while raising concerns about X's credibility in later allegations, did not undermine the safety of the convictions for the original offenses. The inconsistencies highlighted were deemed not significant enough to overturn the convictions, given the jury's opportunity to assess X's evidence and the overall strength of the prosecution case at the original trial.
Application for leave to appeal on ground 3 (admissibility of Dr. Atkin's evidence) refused.
The Court found that Dr. Atkin's evidence did not exceed the trial judge's ruling on admissibility, and that any perceived errors did not prejudice the appellant's case.