Mental Capacity Assessment
Critical Review and Second Opinion on Mental Capacity Assessment Reports
A critical review is an independent analysis of an existing, third-party mental capacity assessment report. Rather than re-assessing the person, it examines whether the report is legally reliable: whether it applies the Mental Capacity Act 2005 properly, identifies the specific decision and relevant time, addresses the functional test with evidence, and links its conclusion to a defensible evidential chain. It is a paper-based service used where a report is challenged in litigation.
Independent, CPR Part 35 compliant reviews of third-party mental capacity reports for solicitors, litigation teams and Court of Protection matters across England and Wales.
At a glance
Decision
Whether an existing capacity report can be relied on
Legal framework
Mental Capacity Act 2005 and CPR Part 35
Format
Desktop review, no visit required
Report
Court-ready and peer reviewed
Coverage
England and Wales
£2,900 + VAT
Fee plus VAT, scope confirmed at instruction
Dependent upon application
Turnaround
England and Wales
Nationwide coverage
Paper-based
A review of the report, not a re-assessment
Plain-English explanation
What this review is
A critical review is an independent examination of a capacity assessment someone else has carried out. It does not reassess the person. It examines the report itself: whether the right decision was identified, whether the statutory test was applied properly, and whether the conclusion is supported by the evidence recorded in it.
The output is a reasoned opinion on the weight the report can bear, written so that it can be put in front of a court, a solicitor or the other side.
A review can conclude that a report is sound. Where that is the answer, that is what the report says, and knowing a report will survive a challenge is worth as much as knowing it will not.
A disagreement is not the same as a flaw
The review is not an exercise in finding fault to order. Where an assessment is properly reasoned, the review says so, whichever party instructed it. An opinion written to suit the instructing side is of no use to anyone once it is tested.
Common situations
When you may need a critical review or second opinion
A critical review is most useful where there is already a mental capacity report, but there is doubt about whether it can safely be relied upon. The issue is often not whether a report exists, but whether the reasoning within it is strong enough for the purpose it now needs to serve.
In practice this service is used most in litigation and professional contexts, where a capacity report is central to the case and its reasoning will be tested. It is instructed where an opposing expert has reached a different conclusion, where a report reaches its conclusion with little reasoning, where the decision being assessed is not clearly identified, where diagnosis appears to have been treated as proof of incapacity, or where the report drifts into best interests rather than capacity. It can also be used to review a local authority or other assessment, though the most common instruction is where the capacity evidence will affect litigation strategy, settlement or a hearing.
The report does not fit the person
The conclusion does not match how the person presents to those who know them well.
Capacity is contested in proceedings
Capacity is a live issue in litigation and the existing evidence has to be tested before it is relied on.
Two reports disagree
There are competing assessments and someone has to explain, on the evidence, why they differ.
Before commissioning a fresh assessment
You want to know whether a new assessment is actually needed, and if so what it must address.
A significant decision rests on it
A deputyship, a placement, a settlement or a transaction is being decided on the strength of a single report.
The reasoning is thin
The report states a conclusion without showing the working, and you need to know whether anything sits behind it.
What the review examines
What this review covers
The review examines the assessment against the requirements of the Mental Capacity Act 2005 and, where the report is intended for proceedings, against the standards expected of expert evidence under CPR Part 35. It addresses the report on its own terms rather than substituting a fresh opinion on the person. The review typically considers:
Whether the report identifies a specific decision, at a specific time, rather than assessing capacity in general
Whether the information relevant to that decision was correctly identified, and tested with the person
Whether all practicable steps were taken to support the person to make the decision before capacity was doubted
Whether both limbs of the test were addressed, and the causal link between impairment and inability actually made out
Whether the conclusion follows from the evidence recorded, or goes further than that evidence supports
Whether an unwise decision, a diagnosis or a disagreement has been treated as if it were incapacity
The review does not reassess the person
This is an examination of the report, not of the individual. Where the conclusion is that a fresh assessment is needed, the review says what that assessment must address and why, so the next instruction is not a repeat of the first.
1
The legal test, evidence and reasoning
A critical review considers whether the report demonstrates a lawful, properly reasoned and decision-specific application of the Mental Capacity Act 2005. The focus is on the quality of the report's reasoning and evidence, not the assessor personally. In particular, we test whether the report:
Clearly identifies the specific decision and the relevant time it needed to be made
Applies the statutory principles and the two-stage test correctly
Shows real functional evidence of understanding, retaining, using or weighing and communicating
Links any impairment to the inability through a defensible causative nexus, not diagnosis-led assumption
2
Gaps, limitations and unsupported conclusions
One of the most common weaknesses in poor reports is over-breadth. If the decision is vague, the relevant information is not clearly identified, or the report drifts into best interests rather than capacity, the conclusion becomes much harder to defend. Our reviews focus on the report's reasoning, methodology and evidential foundation, not personal criticism of the original assessor.
Framework: Mental Capacity Act 2005 ss 1 to 3 and the Code of Practice; CPR Part 35 where the review is prepared as expert evidence for litigation.
For more, read our guide: what is a critical review of a mental capacity assessment.
Legal framework
What we review in the report
Initial enquiry and triage
Contact us and send the report you want reviewed with a short summary of the issue. We identify whether the instruction suits a focused report appraisal, a full critical review, or whether the case may in fact need a fresh enhanced assessment.
Scope, independence and quotation
Once we understand the report and the purpose of the instruction, we confirm the proposed scope, the likely fee, any document limits and the expected turnaround, and carry out any necessary independence and conflict checks.
Review of the report and supporting material
We analyse the report and any supporting documents against the Mental Capacity Act 2005, the decision-specific and time-specific reasoning, the functional evidence, and the overall evidential chain supporting the conclusion.
Preparation of the written review
We prepare a clear written report setting out the strengths, weaknesses, omissions, vulnerabilities and points needing clarification, with a structured schedule of issues or clarification questions where appropriate.
Secure delivery and next steps
The completed review is returned securely, with clear communication about the outcome and any next-step issues, including whether the report can be clarified and relied upon, or whether a fresh assessment is the stronger course.
What happens next
Our critical review process
Working from the papers
How we support decision-making
The Mental Capacity Act 2005 requires that no one is treated as unable to make a decision unless all practicable steps to help them have been taken without success. That support is built into every assessment:
Plain language and real examples
Decisions are explained using the person's own circumstances and the decision actually in front of them, rather than abstract scenarios.
The right time and place
Appointments are arranged for when the person functions best, at home, in a care setting, in hospital or remotely.
A familiar person nearby
A relative, friend or carer can be close at hand where that reassures, while the assessment itself remains independent.
Communication adjustments
More time, information broken into stages, and written notes or aids where they help the person express a view.
Evidence base
What we need to see
The review is only as good as the material behind it, so we ask for the file rather than the report alone. This typically means:
The report under review
The assessment itself, with any appendices, and the letter of instruction that produced it.
The assessor's notes
Contemporaneous notes of the assessment, where they can be obtained, which often show more than the report.
Medical records
The records the assessor relied on, and any that were available but not considered.
Any competing assessment
Other capacity reports on the same person, so the difference between them can be explained on the evidence.
Care and support records
Care plans and daily notes that describe how the person actually presents day to day.
Accounts from people who know the person
Statements from family, carers and professionals, particularly where they conflict with the report's conclusion.
Deliverable
What happens during the review
A critical review is not a re-assessment of the person. It is an expert review of the report and the evidence already relied upon, and it usually involves the following.
Identifying the exact issue in dispute
Reviewing the report and any supporting documents provided
Checking whether the decision and relevant time are properly defined
Examining the report against the Mental Capacity Act framework
Testing whether the functional evidence is actually there
Considering whether support to decide has been addressed
Reviewing whether the conclusion is linked to a defensible evidential chain
Preparing a written second-opinion report with clear findings and next-step issues
Assessment option | Suitable for | What is included |
|---|---|---|
Standard review | Most critical review instructions | |
Enhanced review | Contested, high-value or high-risk matters | |
Court-specific instruction | Court of Protection or other proceedings |
Who we work with
For solicitors, deputies and other professionals
Instruction is straightforward and the evidential standard is consistent whichever decision is being assessed:
Scope confirmed in writing
The decisions to be assessed, the fee and the timescale are confirmed in writing before instruction.
A traceable evidential line
Evidence, analysis and conclusion are set out in a structure a court, bank or public body can scrutinise.
Peer review as standard
A second qualified professional reviews every report before it leaves the practice.
Follow-up clarification
Clarification for instructing parties is included after the report is delivered.
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Transparent pricing
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For families
A clear fee, stated before instruction and confirmed in writing, with VAT and any travel set out up front. This is a desktop review, so the person does not have to be assessed again, and your report is delivered within 5 working days of receiving the complete papers, in a form solicitors and the courts can rely on.
For professionals
A permanent, employed multidisciplinary team, not an ad hoc associate or referral-panel model: Social Work England and Social Care Wales registered social workers and a Chartered Psychologist (BPS). Every report is peer reviewed by a second qualified professional and structured for scrutiny, with reports relied on in the Court of Protection, the Family Court and the Court of Appeal.
Provider evidence
Why choose Nellie Supports for your critical review
England and Wales' largest identified specialist private social work and mental capacity assessment practice, with over 11,000 formal assessments and reports completed by a permanent full-time multidisciplinary team.
Why solicitors and professionals instruct Nellie Supports for report reviews
Decision-specific, not broad commentary
Our reviews focus on the real issue in the case, not general commentary detached from the decision being assessed.
Weakness demonstrated, not just disagreement
We understand the difference between disagreeing with a conclusion and demonstrating why a report is legally or evidentially weak.
Professionally usable in litigation
Reviews written to be clear, structured and usable in litigation and dispute settings, including a schedule of issues where appropriate.
Focused on the report, not the person
We review the report's reasoning, methodology and evidential foundation, not the personal standing of the original assessor.
Experienced across contested capacity
Extensive experience across contested capacity issues, including local authority evidence, litigation capacity and Court of Protection work.
Honest about the better route
Where the real problem is that a fresh assessment is now needed, we say so, rather than defending a fundamentally weak report.
The situation
In a personal injury claim, the two sides held opposing capacity opinions. Our social worker had assessed the claimant as lacking capacity to manage their financial affairs, which pointed towards a deputyship and carried significant implications for the value of the claim. The opposing expert had concluded that the claimant did have capacity. Our client's legal team instructed a critical review of the opposing report.
The review
The review focused on method and legal application, not on the other professional's standing or experience. It examined the opposing report against the Mental Capacity Act 2005 and found that it had not properly applied the functional test, had not set out the relevant information the claimant needed to understand for the specific decision, and had not engaged with the relevant case law.
The outcome
On the strength of that analysis, the court preferred the assessment that had properly applied the legal test. The case illustrates the core point of a critical review: the reliability of a capacity opinion turns on whether the correct legal method has been followed, not on the seniority or discipline of the assessor.
This is a real case. Identifying details have been changed to protect confidentiality.
How this works in practice
Frequently asked questions
Common critical review questions
Do you criticise the professional who wrote the original report?
No. Our role is not to attack the original author personally or by reference to their profession or experience. Our focus is on the report itself: whether the methodology is sound, the Mental Capacity Act 2005 has been applied properly, the reasoning is decision-specific, and the conclusion is supported by the evidence recorded.
Do you review reports prepared for the opposing party?
Yes. One of the most common reasons for instruction is to review a mental capacity report obtained by the opposing party, considering whether the assessor applied the correct legal test, identified the relevant decision, and supported the conclusion with clear evidence and reasoning.
Is your critical review CPR Part 35 compliant?
Yes, where the instruction is for litigation purposes, our reviews can be prepared in a CPR Part 35 compliant format. If the review is intended for court use, it helps to make that clear at the enquiry stage so the instruction is scoped correctly.
Do you re-assess the person, or is this a paper review only?
Usually, this is a paper-based review of the existing report and any supporting material. If the case in fact requires a fresh assessment instead, we can identify that and advise accordingly.
Can a critical review help decide whether a fresh assessment is needed?
Yes. Sometimes a report has weaknesses but remains usable with clarification. In other cases the problems are more fundamental. A critical review can be a useful first step where you do not yet know whether to challenge the existing report, ask further questions, or move straight to new evidence.
What is the difference between a report appraisal and a full critical review?
The report appraisal is the more focused option, suitable where an initial professional view is needed on the strengths and vulnerabilities of a report. The full critical review is more detailed, and is generally better where the capacity evidence is central to litigation strategy or likely to be challenged.
Where do you cover?
Assessments are carried out across England and Wales, at home, in care settings, in hospital or remotely where appropriate. Travel is charged at £40 per hour and confirmed before booking.
Who will carry out the assessment?
A registered professional from our permanent, employed team, which includes Social Work England and Social Care Wales registered social workers and a Chartered Psychologist (BPS). Every report is peer reviewed by a second qualified professional before delivery.
What is a critical review of a mental capacity assessment?
What a critical review examines and provides
How solicitors should challenge a capacity report
Testing a weak or unreliable report
CPR Part 35 and expert evidence in capacity disputes
Expert evidence standards in litigation
What a litigation-ready capacity review should include
The features of a robust review
Independence and conflicts of interest in capacity assessments
Why independence protects the evidence
Supporting guidance
Critical review and capacity guides
Capacity to litigate assessment
For conducting legal proceedings, including the Certificate as to Capacity to Conduct Proceedings.
Retrospective mental capacity
Court-ready opinion on whether a person had capacity for a past decision, from the records.
Other assessment types
Discuss the instruction
Request a critical review
Send us the report you want reviewed and a short summary of the issue, and we will confirm scope, fee and turnaround, and whether a review or a fresh assessment is the stronger course.
Written by Ben Slater, Founder and Managing Director, Nellie Supports. Read our editorial policy.