Court of Protection Litigation 

1. Meaning of Court of Protection Litigation

Court of Protection litigation refers to proceedings before the Court of Protection of England and Wales concerning people who lack, or may lack, mental capacity to make particular decisions for themselves.

The Court of Protection was established under the Mental Capacity Act 2005 (MCA). It has jurisdiction principally over:

• personal welfare;
• healthcare and medical treatment;
• property and financial affairs;
• appointment and supervision of deputies;
• lasting powers of attorney;
• declarations about capacity and lawfulness;
• deprivation-of-liberty questions;
• statutory wills and gifts;
• other decisions specifically falling within the MCA framework.

The Court is a superior court of record, and its jurisdiction and powers are principally statutory rather than based upon the broad inherent jurisdiction of the High Court.

2. Fundamental Principle

The central principle is:

A person is presumed to have capacity unless it is established that they lack capacity for the particular decision in question.

The Mental Capacity Act adopts a decision-specific approach.

Therefore, the question is not simply:

“Does this person have mental capacity?”

Instead, the court asks:

“Does this person have capacity to make this particular decision at this particular time?”

3. Five Statutory Principles of the Mental Capacity Act

Section 1 MCA establishes five fundamental principles.

Principle 1 — Presumption of capacity

A person must be presumed to have capacity unless it is established that they lack it.

Principle 2 — Support before declaring incapacity

A person should not be treated as unable to make a decision unless all practicable steps to help them make it have been taken without success.

Principle 3 — Unwise decisions

A person is not to be treated as lacking capacity merely because they make an unwise decision.

Principle 4 — Best interests

Any act or decision made on behalf of a person who lacks capacity must be done in their best interests.

Principle 5 — Least restrictive option

Before acting, consideration must be given to whether the purpose can be achieved in a way that is less restrictive of the person's rights and freedom of action.

These principles shape virtually every Court of Protection case.

4. Capacity Test

Under Section 2 MCA, a person lacks capacity if, at the material time, they are unable to make the relevant decision because of an impairment or disturbance in the functioning of the mind or brain.

Section 3 then asks whether the person can:

1. Understand relevant information;
2. Retain that information long enough to make the decision;
3. Use or weigh that information as part of the decision-making process;
4. Communicate the decision by any means.

The test is therefore:

Impairment/disturbance + inability to make particular decision = lack of capacity

5. Jurisdiction of the Court of Protection

The Court's jurisdiction is statutory.

It can make decisions concerning:

A. Property and financial affairs

Examples:

• buying or selling property;
• management of bank accounts;
• investments;
• payment of debts;
• inheritance;
• taxation;
• gifts;
• statutory wills;
• appointment of deputies.

B. Personal welfare

Examples:

• residence;
• care arrangements;
• contact with family;
• education in relevant cases;
• social relationships;
• restrictions on movement;
• certain medical decisions.

C. Serious medical treatment

Where the individual lacks capacity, the court can determine certain serious treatment disputes.

D. Deprivation of liberty

The Court can determine whether particular care arrangements amount to a deprivation of liberty and whether such arrangements are lawful and in the person's best interests.

6. Court of Protection Rules and Practice Directions

Procedure is principally governed by the Court of Protection Rules 2017, supplemented by Practice Directions.

The current Practice Directions address matters including:

• participation of P;
• case pathways;
• hearings;
• transparency;
• service;
• jurisdiction;
• expert evidence;
• litigation friends;
• representatives;
• costs;
• appeals;
• contempt;
• international protection of adults. 

This makes Court of Protection litigation procedurally distinct from ordinary civil litigation.

7. Who Is “P”?

The person whose capacity or welfare is the subject of proceedings is commonly called “P.”

This terminology is important because Court of Protection proceedings are intended to focus on P's rights, wishes, feelings and welfare, rather than treating the case simply as a dispute between other parties.

The participation of P is specifically addressed by Practice Direction 1A.

8. Litigation Friend and Representative

Because P may lack capacity to conduct litigation, the court may appoint:

Litigation Friend

A litigation friend assists P in conducting proceedings.

Rule 1.2 Representative

The Court of Protection framework also provides for a representative to participate in certain proceedings and help ensure that P's participation and interests are properly represented.

The procedural framework expressly contains Practice Directions dealing with litigation friends and representatives.

9. Participation of P

A crucial modern principle is that P should not simply disappear from their own litigation.

The court should consider:

• P's wishes;
• P's feelings;
• P's views;
• P's values;
• P's preferences;
• P's participation in hearings;
• appropriate communication methods;
• whether P can communicate directly or through assistance.

This reflects the human-rights dimension of capacity law.

10. Best Interests

Where P lacks capacity, the decision-maker must act in P's best interests.

Section 4 MCA requires consideration of matters including:

• P's past and present wishes and feelings;
• beliefs and values;
• other factors P would probably consider;
• consultation with appropriate people;
• whether P may regain capacity;
• the least restrictive alternative.

Importantly:

Best interests do not simply mean what other people think is safest.

The court must undertake a structured evaluation of P's interests.

11. Types of Court of Protection Litigation

A. Capacity disputes

Whether P has capacity to make a specific decision.

B. Welfare disputes

Where family members, local authorities or healthcare providers disagree about P's care or residence.

C. Medical treatment disputes

For example:

• withdrawal of treatment;
• life-sustaining treatment;
• serious medical procedures.

D. Deprivation of liberty

Whether restrictions on P's freedom amount to a deprivation of liberty.

E. Property disputes

For example:

• sale of a house;
• management of investments;
• inheritance;
• financial abuse.

F. Deputyship disputes

Whether a deputy should be appointed, removed or supervised.

G. Lasting Power of Attorney disputes

Questions concerning:

• validity;
• registration;
• abuse;
• revocation;
• authority of attorneys.

H. Statutory wills

Where P lacks testamentary capacity and a statutory will is sought.

12. Court of Protection Litigation Is Not Ordinary Family Litigation

The Court of Protection should not simply be treated as an adult version of the Family Court.

The Supreme Court has emphasized that the MCA does not confer a general parental or guardianship jurisdiction over adults. Its powers must remain within the statutory framework.

This distinction is extremely important.

13. Major Case Laws

1. Aintree University Hospitals NHS Foundation Trust v James

[2013] UKSC 67

Facts

Mr James was seriously ill and lacked capacity. The dispute concerned decisions regarding life-sustaining treatment.

Principle

The Supreme Court emphasized that the question is not whether the treatment is objectively beneficial according to the doctor's perspective, but whether the proposed decision is in the best interests of P.

The court must consider P's:

• wishes;
• feelings;
• beliefs;
• values;
• medical circumstances;
• wider interests.

Importance

This is a foundational authority for best-interests decision-making.

14. P v Cheshire West and Chester Council; P and Q v Surrey County Council

[2014] UKSC 19

Principle

The Supreme Court established the famous “acid test” for determining whether a person is deprived of liberty.

A person is generally deprived of liberty where they are:

1. subject to continuous supervision and control, and
2. not free to leave.

This applies even where the restrictions are considered necessary or beneficial.

The case transformed deprivation-of-liberty litigation and remains a foundational authority, although the Supreme Court revisited the legal framework surrounding deprivation of liberty in a 2026 judgment.

Importance

Cheshire West = leading authority on deprivation of liberty.

15. N v ACCG

[2017] UKSC 22

Principle

The Supreme Court clarified the limits of the Court of Protection's powers.

The Court of Protection can make decisions within the MCA framework, but it cannot simply compel third parties—such as healthcare commissioners or care providers—to provide services that they are not legally required to provide.

The court's jurisdiction does not become unlimited merely because P lacks capacity.

Importance

This case establishes:

Best-interests jurisdiction does not equal unlimited governmental or contractual power.

16. A Local Authority v JB

Court of Appeal

[2020] EWCA Civ 735

Supreme Court

[2021] UKSC 52

Facts

The proceedings concerned JB's capacity to consent to sexual relations.

The dispute focused upon the information that a person must understand in order to have capacity to consent to sexual relations, including the requirement that the other person must also consent.

Principle

The Supreme Court confirmed that the concept of consent in this context involves understanding that the other person must be able to consent and must in fact consent.

The case demonstrates the highly decision-specific nature of the MCA capacity test.

Importance

JB = leading authority on decision-specific capacity and sexual-consent decisions.

17. Re F (Mental Patient: Sterilisation)

[1990] 2 AC 1

Principle

The House of Lords considered medical treatment for an adult incapable of giving valid consent.

The case developed principles concerning the court's protective jurisdiction and decisions concerning people lacking capacity.

Although predating the MCA 2005, it remains historically important in understanding the development of the modern Court of Protection jurisdiction.

Importance

It provides an important bridge between the pre-MCA protective jurisdiction and modern capacity law.

18. Re E (Medical Treatment: Anorexia)

[2012] EWHC 1639 (COP)

Principle

The Court considered whether a person suffering from anorexia had capacity concerning medical treatment.

The case illustrates that:

A person may understand information intellectually but nevertheless fail the statutory test if they cannot properly use or weigh the relevant information.

Importance

It demonstrates the importance of the functional test of capacity, particularly the “use or weigh” requirement.

19. Wye Valley NHS Trust v B

[2015] EWCOP 60

Principle

The case concerned serious medical treatment and the need for careful best-interests analysis.

The Court emphasized that a decision about treatment must focus on P's interests, rather than simply resolving disagreement between medical professionals and family members.

Importance

It illustrates the Court's protective role in serious healthcare decisions.

20. Re X and Others (Deprivation of Liberty)

[2014] EWCOP 25

Principle

The case concerned procedural safeguards for people subject to deprivation of liberty.

The judgment considered:

• participation;
• representation;
• procedural fairness;
• judicial oversight.

It became part of the development of the procedural framework surrounding deprivation-of-liberty cases.

Importance

It demonstrates that procedural safeguards are an essential component of substantive protection.

21. Re NRA & Others

[2015] EWCOP 59

Principle

The case examined the appropriate procedural approach in Court of Protection proceedings, including the participation and representation of P.

It contributed to the development of modern Court of Protection procedure before later reforms.

Importance

It illustrates the Court's effort to balance:

• P's participation;
• efficiency;
• representation;
• fairness.

22. Relationship Between Aintree and Cheshire West

These cases illustrate two different dimensions of Court of Protection litigation.

Aintree

Focus:

What is in P's best interests?

Cheshire West

Focus:

Has P been deprived of liberty?

Thus:

Capacity → Best interests → Lawfulness of restrictions

can require several distinct legal analyses.

23. Evidence in Court of Protection Litigation

Evidence may include:

Medical evidence

• psychiatric reports;
• neurological evidence;
• psychological assessments;
• clinical opinions.

Social-care evidence

• care plans;
• risk assessments;
• placement reports.

Financial evidence

• bank records;
• property valuations;
• investment documents;
• expenditure records.

Witness evidence

• family members;
• carers;
• professionals;
• friends.

P's own evidence

Where possible, P's own views and communications are critically important.

The Court's Practice Directions contain specific provisions concerning written evidence and expert evidence.

24. Expert Evidence

Experts may assist the Court on:

• mental disorder;
• cognitive functioning;
• neurological impairment;
• capacity;
• medical treatment;
• risk;
• care requirements.

However, the legal test for capacity is ultimately a matter for the court, not something an expert can conclusively determine merely by labelling a person “incapable.”

25. Property and Financial Litigation

The Court may intervene where P lacks capacity to manage financial affairs.

Examples:

Sale of property

P owns a house but cannot understand the transaction.

The Court may authorize or refuse sale.

Gifts

A deputy may seek authority for a substantial gift.

Statutory will

Where P cannot make a valid will, the Court may authorize a statutory will where the statutory requirements are met.

Financial abuse

The Court may investigate inappropriate conduct by an attorney or deputy.

26. Deputyship

A deputy is appointed to make decisions for a person who lacks capacity where an appropriate deputyship order is required.

Two broad categories are:

1. Property and financial affairs deputy
2. Personal welfare deputy

Personal welfare deputyships are much more restricted because many welfare decisions are intended to be made through the statutory best-interests framework rather than permanent delegation.

27. Lasting Powers of Attorney

Court of Protection litigation may concern an attorney's conduct.

Potential issues include:

• abuse of authority;
• financial exploitation;
• conflicts of interest;
• gifts;
• property transactions;
• inappropriate decisions.

The court can supervise or intervene within its statutory powers.

28. Deprivation of Liberty Litigation

This is one of the largest areas of Court of Protection litigation.

After Cheshire West, the key questions traditionally included:

1. Is P under continuous supervision and control?
2. Is P free to leave?

If the answer is yes and no respectively, a deprivation of liberty may arise.

However, the Supreme Court's 2026 judgment has revisited the legal definition, meaning that Cheshire West should now be read alongside the newer authority rather than treated as the final word on every aspect of the test.

29. Human Rights and the Court of Protection

Court of Protection litigation frequently engages:

• Article 5 ECHR — liberty;
• Article 6 ECHR — fair hearing;
• Article 8 ECHR — private and family life;
• Article 14 ECHR — non-discrimination.

The Practice Directions specifically include provisions concerning the Human Rights Act 1998.

The court therefore has to balance:

Protection from harm

against

Autonomy and fundamental rights.

30. Autonomy vs Protection

This is the central philosophical tension.

Protection model

The court protects P from:

• exploitation;
• abuse;
• serious harm;
• inappropriate treatment.

Autonomy model

The law recognizes that adults have the right to:

• make their own choices;
• take risks;
• make unwise decisions;
• live according to their own values.

The MCA attempts to reconcile these through the statutory principles.

31. Court of Protection as an Inquisitorial Court

Court of Protection proceedings have an important inquisitorial dimension.

The court is not merely an umpire between competing parties.

It actively seeks to determine:

• what happened;
• what P wants;
• whether P has capacity;
• what evidence is reliable;
• what decision is in P's best interests.

This differs from the traditional model of purely adversarial civil litigation. Academic and judicial materials describe the Court of Protection as operating through an inquisitorial approach in appropriate cases.

32. Procedure

A simplified Court of Protection proceeding can be represented as:

Application

↓

Issue and notification

↓

Representation of P

↓

Evidence and capacity assessment

↓

Case management

↓

Hearing

↓

Capacity determination

↓

Best-interests decision / declaration / order

↓

Supervision or review where necessary

33. Case Management

The Court may determine:

• issues;
• evidence;
• expert evidence;
• parties;
• representatives;
• hearing arrangements;
• disclosure;
• timetable;
• whether a hearing is necessary;
• whether a matter can be dealt with on paper.

The Rules and Practice Directions contain specific case pathways and procedural requirements.

34. Confidentiality and Transparency

Court of Protection cases frequently involve highly private information.

Examples:

• medical records;
• family relationships;
• financial information;
• sexual relationships;
• disability;
• care arrangements.

Consequently, reporting restrictions and transparency rules are particularly important.

The Practice Directions contain a specific Transparency Practice Direction 4C and provisions dealing with hearings and reporting restrictions.

35. Appeals

Appeals from the Court of Protection are governed by the relevant statutory and procedural framework.

An appeal may arise where there is an alleged:

• error of law;
• procedural unfairness;
• improper exercise of discretion;
• failure to apply the MCA;
• inadequate reasoning.

Practice Direction 20A specifically addresses appeals.

36. Costs

Costs in Court of Protection proceedings operate differently from ordinary civil litigation.

The court has specific powers and rules governing costs, and the Practice Directions include a dedicated Costs Practice Direction 19A and fixed-cost provisions.

The court may consider:

• conduct;
• nature of proceedings;
• benefit to P;
• financial circumstances;
• whether proceedings were necessary;
• whether litigation was reasonable.

37. International Cases

The Court of Protection can have international dimensions involving:

• P's habitual residence;
• property located abroad;
• foreign protective measures;
• cross-border care;
• recognition of foreign protective orders.

Practice Direction 23A specifically concerns International Protection of Adults.

The MCA framework also contains jurisdictional provisions relevant to international situations.

38. Limits of Court of Protection Jurisdiction

The Court cannot simply decide every problem involving a vulnerable adult.

For example:

• some matters fall under the Mental Health Act 1983;
• certain family-law matters are excluded;
• the Court cannot create powers that Parliament has not given it;
• it cannot simply compel third parties to provide services beyond their legal obligations.

This limitation was central to N v ACCG.

39. Remedies and Orders

The Court may make orders including:

Declaratory orders

Declaring:

• whether P lacks capacity;
• whether a particular decision is lawful;
• whether a particular action is in P's best interests.

Decision-making orders

The court may make the relevant decision on P's behalf.

Property orders

For example:

• sale of property;
• investment;
• expenditure.

Welfare orders

For example:

• residence;
• care arrangements;
• contact.

Deputyship orders

Appointment or supervision of deputies.

Statutory will

Authorization of a will where statutory requirements are met.

Protective orders

Orders designed to prevent abuse or protect P's property or welfare.

40. Major Legal Tensions

Court of Protection litigation frequently involves conflicts between:

Autonomy vs protection

Should P be allowed to take a serious risk?

Family wishes vs P's interests

Should family preference determine the outcome?

Medical opinion vs P's values

Should medical benefit override P's previously expressed wishes?

Liberty vs safety

How much restriction is justified?

Confidentiality vs transparency

How much of the proceedings should be publicly reported?

41. Key Case-Law Principles

42. Exam-Oriented Definition

Court of Protection litigation is the statutory process before the Court of Protection of England and Wales for determining questions concerning the mental capacity, personal welfare, healthcare, property and financial affairs, representation and protection of persons who lack or may lack capacity, principally under the Mental Capacity Act 2005 and the Court of Protection Rules 2017.

43. Simple Formula

Mental Capacity Act 2005

Decision-Specific Capacity

P's Participation

Best Interests

Least Restrictive Alternative

Judicial Protection

=

Court of Protection Litigation

Conclusion

Court of Protection litigation is a specialised area of English private and public law designed to protect the rights and interests of people who cannot make particular decisions for themselves.

Its fundamental philosophy is not simply protection. The Mental Capacity Act seeks to preserve autonomy wherever possible, while providing judicial protection when capacity is absent.

The leading authorities illustrate the principal areas of the jurisdiction: Aintree v James establishes the central importance of P's best interests; Cheshire West developed the deprivation-of-liberty framework; N v ACCG demonstrates that the Court's powers remain statutory and limited; and A Local Authority v JB illustrates the highly decision-specific nature of capacity.

The modern approach can therefore be summarized as:

Presume capacity → support decision-making → respect unwise decisions → determine capacity for the specific decision → involve P → determine best interests where necessary → use the least restrictive option.

The Court of Protection consequently represents a distinctive form of protective civil litigation in which autonomy, dignity, welfare, liberty and procedural justice must be balanced within the statutory limits of the Mental Capacity Act 2005.