Court of Appeal (Criminal Division)
Psychiatric Expert Witness Reports for Appeals
Specialist psychiatric evidence for the senior criminal court of England and Wales. Our forensic psychiatrists provide retrospective assessments, fresh evidence reports, and sentencing mitigation to support grounds of appeal against conviction and sentence where mental health was a factor.
About Court of Appeal Proceedings
The Court of Appeal (Criminal Division) hears appeals from the Crown Court. Appeals may be against conviction, sentence, or both. In cases involving mental health, the Court often relies on expert psychiatric evidence to determine if a conviction is “unsafe” or if a sentence was manifestly excessive or wrong in principle.
Conviction Appeals
- Fresh evidence (S.23)
- Retrospective unfitness
- Misdirection of jury
- New medical diagnoses
Sentence Appeals
- Manifestly excessive
- Wrong in principle
- New mitigation evidence
- Hospital order requests
Reference Cases
- Attorney General refs
- CCRC references
- Points of law
- Guideline judgments
Court of Appeal
- Section 23 “Fresh Evidence” rule
- Focus on “Unsafe” convictions
- Retrospective fitness tests
- Substitution of disposals
Crown Court (Trial)
- Live evidence and jury
- Primary fact-finding
- Contemporaneous fitness
- Initial sentencing orders
When Appellate Psychiatric Evidence Is Required
Psychiatric expert evidence is frequently instructed in Court of Appeal proceedings for the following purposes:
Retrospective Fitness
Assessing whether the appellant was unfit to plead or stand trial at the time of the original proceedings, rendering the conviction unsafe.
Fresh Evidence (S.23)
Providing evidence that was not available at trial, such as a new diagnosis of ADHD, Autism, or a previously missed psychotic disorder.
Sentencing Appeals
Evidence supporting an appeal against sentence, arguing for a hospital order or reduction in custody based on psychiatric mitigation.
Retrospective Insanity
Evaluating if a M’Naghten rules defence should have been available at trial based on newly identified psychiatric history.
CCRC References
Expert reports commissioned for cases referred back to the Court of Appeal by the Criminal Cases Review Commission.
Diminished Responsibility
Challenging murder convictions where fresh psychiatric evidence suggests a defence of diminished responsibility was applicable.
Types of Appellate Psychiatric Reports
Retrospective Fitness
Purpose: Determine if the appellant was unfit to plead during the original trial.
Key Questions: Was the Pritchard test met at trial? Did mental disorder impair participation?
Legal Test: Application of Pritchard criteria to contemporaneous evidence and records.
Section 23 Fresh Evidence
Purpose: Present new psychiatric findings that could have affected the trial outcome.
Contents: New diagnosis, explanation for why not raised at trial, impact on safety.
Disposals: Quashed conviction, Retrial, or substituted sentence.
Sentencing Appeal Report
Purpose: Provide evidence that the original sentence was manifestly excessive.
Requirements: Evidence of mental state at sentencing, new mitigation, or treatment needs.
Our Role: Detailed assessment of culpability and recommendation for varied disposal.
CCRC Assessment
Purpose: Investigatory report for the Criminal Cases Review Commission.
Covers: Extensive review of historic records, fresh clinical examination, and expert opinion.
Outcome: Opinion on whether there is a “real possibility” the Court would quash conviction.
Oral Evidence
Purpose: Expert testimony at the Royal Courts of Justice during appeal hearings.
Covers: Cross-examination on written findings and response to Court queries.
Context: Senior forensic experts comfortable in high-level appellate settings.
Complex Appeal Case?
Discuss with Triage TeamPossible Outcomes in the Court of Appeal
| Outcome | Description |
|---|---|
| Conviction Quashed | The conviction is set aside as “unsafe” |
| Retrial Ordered | Conviction quashed but a new trial is required |
| Sentence Varied | The sentence is reduced or the type of order is changed |
| Substituted Finding | Substitution of a finding of unfitness or not guilty by reason of insanity |
Which Expert for the Court of Appeal?
Forensic Psychiatrist
Lead expert for most appeals
- Section 23 fresh evidence
- Retrospective fitness tests
- Dangerousness assessments
Why: Extensive experience in the interface between senior courts and complex mental disorders.
Neuropsychiatrist
For brain-related issues
- Acquired Brain Injury (ABI)
- Dementia or organic disorders
- Retrospective impact of trauma
Why: Essential where the appeal rests on missed organic brain pathology.
Clinical Psychologist
For cognitive/suggestibility
- Suggestibility (Gudjonsson scale)
- Learning disability assessments
- Retrospective cognitive capacity
Why: Key for appeals involving false confessions or PACE breaches.
Our Process
Urgent Instruction
Contact us with case details — we understand deadlines
Expert Match
We identify available Section 12 approved psychiatrist
Rapid Assessment
Face-to-face or video assessment (often within days)
Report Delivered
Written report provided to meet court deadline
Court Attendance
Expert available for oral evidence if required
Hospital Liaison
For S.37 cases, we assist with bed finding
Turnaround Times
| Report Type | Standard | Urgent |
|---|---|---|
| Conviction Appeal | 6–8 weeks | Bespoke |
| Sentence Appeal | 4–6 weeks | 1–2 weeks |
| Retrospective Fitness | 6–8 weeks | Bespoke |
| CCRC Assessment | 8–12 weeks | N/A |
Funding Options
Legal Aid (LAA)
LAA rates accepted. Prior authority support for complex appeals.
Private Funding
Fixed fees for comprehensive appeal assessments.
CCRC Funded
Direct billing to the CCRC available for investigatory reports.
Legal Framework
All appellate reports comply with Criminal Procedure Rules Part 19 and Part 39, addressing the specific requirements for fresh evidence and the “unsafe” conviction threshold.
Frequently Asked Questions
What is the “Fresh Evidence” rule under Section 23?
Section 23 of the Criminal Appeal Act 1968 allows the Court to receive evidence that was not produced at trial. For psychiatric evidence, this usually means a diagnosis or clinical finding that was not known or available at the time of the original trial. The Court must be satisfied that the evidence is credible and would have been admissible.
How do you conduct a retrospective fitness to plead assessment?
Our experts review contemporaneous medical records, solicitor notes from the trial period, witness statements, and trial transcripts. They then interview the appellant to reconstruct their mental state at the time of the trial, applying the Pritchard criteria to determine if they were capable of meaningful participation.
Can the Court of Appeal substitute a sentence with a Hospital Order?
Yes. If fresh psychiatric evidence shows that the appellant was suffering from a mental disorder at the time of sentencing that warrants hospital treatment, the Court of Appeal can quash the prison sentence and substitute it with a Section 37 Hospital Order (and Section 41 restriction if necessary).
What makes a conviction “unsafe” in psychiatric terms?
A conviction may be unsafe if mental health issues meant the defendant could not participate in their trial, if a valid psychiatric defence (like insanity or diminished responsibility) was missed, or if psychiatric issues affected the reliability of a confession or witness testimony.
Do you work with the Criminal Cases Review Commission (CCRC)?
Yes. We regularly accept instructions from solicitors representing clients in CCRC applications and occasionally provide reports directly to the CCRC. These investigations often require a deep dive into decades of medical and custodial history.
Can you assess appellants currently in high-security hospitals?
Yes. Our forensic experts are experienced in conducting assessments within high-security psychiatric settings (such as Broadmoor, Ashworth, or Rampton) as well as the prison estate.
What documents are needed for an appeal assessment?
We typically require the trial transcript, original psychiatric reports (if any), contemporaneous medical and GP records, the grounds of appeal, and any witness statements related to the appellant’s behaviour at the time of the offence or trial.
Instructing for a Criminal Appeal?
Expert Section 23 fresh evidence and retrospective assessments. Forensic psychiatrists experienced in the Royal Courts of Justice. LAA rates accepted.


