Thomas (Previously Edgington) v R.

Factual and Procedural Background

The Appellant was tried at The Court and convicted in February 2013 of the murder of Victim A and the attempted murder of Victim B. The Appellant admitted performing the acts but relied on diminished responsibility in relation to the murder and lack of intent in relation to the attempted murder. After a 24 day trial before Judge Barker and a jury, she was convicted of both offences and sentenced to life imprisonment with a minimum term of 37 years; a concurrent life sentence was imposed for the attempted murder. Leave to appeal was refused in 2013 (R v Edgington [2013] EWCA Crim 2185).

The Criminal Cases Review Commission (the Commission) later referred the conviction to this Court following new psychiatric reports prepared post-conviction. Fresh counsel advanced three grounds of appeal, principally challenging the evidence of the prosecution's expert psychiatrist, Expert Joseph, and seeking to rely on additional psychiatric reports as fresh evidence. After a two day hearing this Court refused to admit the fresh evidence and dismissed the appeal.

Legal Issues Presented

1. Whether the conviction for murder was unsafe and should be set aside and replaced with manslaughter on the ground of diminished responsibility.
2. Whether the Court should admit fresh psychiatric evidence under section 23 of the Criminal Appeal Act 1968 and, if admitted, whether that evidence would have rendered the conviction unsafe.

Arguments of the Parties

Appellant's Arguments

• The conviction for murder was unsafe and should be substituted with manslaughter because the Appellant suffered from schizoaffective disorder causing diminished responsibility.
• The prosecution expert's evidence (Expert Joseph) was incomplete, selective and materially inaccurate; fresh expert reports (Expert Rix, Expert Farnham and underlying post‑conviction clinical records) show that the defence at trial should have succeeded.
• The Commission was correct to refer the case on the basis that the fresh expert evidence created a real possibility the conviction would not be upheld.

Prosecution's Arguments

• The fresh evidence is not properly fresh because it relies largely on material available at trial; the criticisms of Expert Joseph could and were, in essence, made at trial.
• Admitting the fresh evidence would produce substantially the same evidential picture as before the jury: competing psychiatric opinions with the same central factual material; allowing it would amount to a forbidden re-run of the trial expert evidence.
• Even with the fresh reports, the totality of the evidence (including CCTV, contemporaneous behaviour and admissions) supports the original verdict and no miscarriage of justice is shown.

Table of Precedents Cited

Court's Reasoning and Analysis

The Court first addressed admissibility of the proffered fresh evidence under section 23 Criminal Appeal Act 1968 and applied the statutory considerations: credibility, admissibility at trial, explanation for failure to adduce earlier, and whether the evidence, if admitted, would afford grounds for allowing the appeal. The Court accepted the new experts were credible and that much of their evidence would have been admissible, but focused on whether the evidence would change the outcome.

The Court emphasised established authorities (Pendleton; Kai-Whitewind; Hunnisett). It held that a successful fresh evidence application is unlikely where the material would simply recreate the conflict of expert opinion before a jury. The Court noted that Professor Rix explicitly relied substantially on material available at trial and that many criticisms of Expert Joseph were in substance available to and explored by trial counsel during an extensive cross‑examination; trial counsel was not criticised for that conduct.

The Court analysed the factual matrix the jury had: unanimous expert evidence that an abnormality of mental functioning existed, robust CCTV and contemporaneous behaviour evidence appearing rational and deliberate, admissions shortly after the events, and extensive medical records. The Court concluded that admitting the fresh experts (Professor Rix and Expert Farnham) would also require admitting the Crown's fresh expert (Professor Blackwood), resulting in essentially the same evidential contest the jury faced. Applying the Pendleton test, the Court found the fresh material would not have been likely to cause a jury to reach a different verdict and therefore did not render the conviction unsafe.

Holding and Implications

DECISION: The Court refused to admit the fresh evidence and dismissed the appeal on all grounds.

Implications: The direct effect is that the Appellant's convictions and sentences stand. The Court concluded no miscarriage of justice was shown and refused a retrial or substitution of verdict. The judgment does not establish a new legal precedent beyond the application of existing authorities on fresh evidence and reiterates the limits on re‑litigation of substantially the same expert opinion on appeal.