O'Brien v Chief Constable of the South Wales Police

This is an appeal by the Chief Constable of South Wales Police against a High Court case management order permitting the claimant to rely on similar‑fact evidence in a civil action for malicious prosecution and misfeasance in public office. The claimant was convicted of murder in 1988, served over 11 years, and his conviction was quashed by the Court of Appeal in January 2000. The judge granted permission to rely on evidence from two prior police investigations (R v Griffiths & Others and R v Idris Ali) as similar‑fact material to support allegations of fabrication, oppression, suppression of exculpatory material and denial of access to solicitors. The principal issue before the Court of Appeal was the admissibility and management of similar‑fact evidence in civil proceedings, and whether the judge properly exercised his discretion under the Civil Procedure Rules to admit limited evidence from the two comparator cases. The court also dealt with a cross‑appeal on one discrete item of evidence from the Griffiths proceedings.

Disposition

1. (Overall outcome) The court dismissed the defendant’s appeal and allowed the claimant limited leave to adduce the similar‑fact material from both comparator cases; the cross‑appeal was allowed in part to permit one discrete strand of evidence from Griffiths (placement in cell of a vulnerable prisoner) to be relied upon.

Reasoning and principles

2. The court endorsed and applied the modern civil test for similar‑fact evidence: evidence is admissible in civil proceedings if it is "logically probative" of an issue in the case, drawing on the approach in DPP v P but adapted to civil litigation and the requirements of the Civil Procedure Rules (paras 70–71, 74–75).
3. The court emphasised that admissibility requires a fact‑sensitive assessment of probative value and similarity; similar‑fact evidence need not show a full "system" but must have sufficient logical connection to the matters in issue (paras 59–61, 70–71).
4. Even where admissible, the court retained a robust discretion under the Civil Procedure Rules (CPR 32.1(2) and the overriding objective) to exclude or limit evidence that would be oppressive, unfair or render the trial unmanageable, with particular care where a jury trial might be distracted by collateral inquiries (paras 66–69, 71).
5. On the facts the judge was right to admit limited evidence from R v Idris Ali because it was probative and would not materially prolong the trial; the judge was entitled to admit evidence from R v Griffiths but the Court of Appeal exercised its own judgment on manageability, allowing the Griffiths material subject to limitation on scope (paras 31, 74–81).
6. The court explained that prior criminal findings or acquittals do not automatically determine admissibility; rather their factual material may be used to attack the credibility of investigating officers where the comparator incidents are sufficiently similar and probative (paras 24–26, 76, 80).
7. Practical direction: evidence admitted was to be tightly confined to specified matters (fabrication of statements, timing/recording of contemporaneous notes, denial of access to solicitors, oppressive questioning, prompting/inducements, and any false evidence by the senior officer) to avoid re‑trial of historic criminal proceedings (paras 23–30, 74–81).

Orders

8. The appeal is dismissed; the trial judge’s order admitting limited similar‑fact evidence stands subject to the restrictions and the cross‑appeal is allowed in part to permit the additional discrete Griffiths evidence about placement with a vulnerable prisoner (paras 79–81, 82).

• Court of Appeal (Civil Division): Appeal from the High Court (Cardiff District Registry) — judgment dismissing appeal and allowing limited similar‑fact evidence [2003] EWCA Civ 1085.
• High Court (Cardiff): Case management order of Judge Graham Jones (permission to rely on specified similar‑fact evidence) — order under appeal (21 November 2002) (referred to in judgment).