Introduction
The decision in M -v- P [No 3] [2024] WASC 123 provides guidance on the approach courts take when considering applications regarding a litigant's capacity.
Justice Lundberg's judgment illuminates the delicate balance courts must strike between protecting potentially vulnerable litigants and respecting individual autonomy. This decision carries particular significance for practitioners faced with opposing self-represented litigants whose capacity may be questionable, offering a roadmap for appropriate procedural steps while highlighting the evidentiary threshold required for such applications.
The case reinforces the Court's protective jurisdiction while demonstrating judicial reluctance to make declarations of incapacity without proper evidence. It establishes an intermediate pathway through referral to the Public Advocate that practitioners should note when contemplating similar applications.
Background of Relevant Case Law
The principles applicable to applications under Order 70 of the Rules of the Supreme Court 1971 (WA) ('RSC') have been developed through several key decisions.
In A v City of Swan [No 5] [2010] WASC 204, Murphy JA provided a detailed analysis of the Court's parens patriae jurisdiction and the principles governing determinations of capacity. His Honour emphasised that capacity is not a fixed standard but fluctuates according to the legal character, complexity, and significance of the matter in question.
More recently in Snook v Magistrate Trevor Darge [No 2] [2024] WASC 91, Seaward J summarised the applicable principles, noting that proof of complete incapacity is not required, and that a person can lack mental capacity to participate in legal proceedings whilst still being capable of performing the usual activities of daily life.
The Court in Farrell v Allregal Enterprises Pty Ltd [2008] WASCA 264 established a procedural framework for seeking assistance from the Public Advocate in determining questions of capacity, which Justice Lundberg adopted in the present case.
Facts of the Case
M -v- P [No 3] concerned a defamation action brought by an unrepresented plaintiff against the defendant, both of whom were medical practitioners (at [1]). The action, which had been on foot for over a year, involved allegations of defamation through "several oral and written communications allegedly published by the defendant" with "around 18 publications identified in the pleadings" (at [1]).
The plaintiff was engaged in multiple disputes across various courts and tribunals, all whilst self-represented (at [1]-[2]).
The defendant applied for an order that the plaintiff be declared a person under a disability by reason of mental illness, defect or infirmity, within the meaning of paragraph (c) of the definition of 'person under disability' in Order 70 rule 1 of the RSC (at [3]).
Order 70 RSC relates to the Court's parens patriae jurisdiction, which derives from "the inherent obligation of the Crown to care for those who are unable to care for themselves" and is expressly conferred by s 16(1)(d) and s 23 of the Supreme Court Act 1935 (WA) (at [5]).
Significantly, the defendant did not present any medical evidence in support of the application (at [14]) but rather invited the Court to draw inferences about the plaintiff's capacity from the plaintiff's conduct, communications, and court documents.
The defendant presented an alternative pathway in the event the Court was not prepared to make an immediate declaration, proposing orders that would request the Public Advocate investigate and report on whether the plaintiff had the ability to make reasonable judgments about the conduct of the proceedings (at [7]-[8]).
The plaintiff strongly opposed the application, filing multiple submissions totalling 87 pages and a 156-page affidavit (at [15]).
Analysis of the Court's Reasoning
Justice Lundberg commenced his analysis by acknowledging the serious nature of the application and the Court's duty to consider whether a person has the requisite capacity when put on notice (at [19]). His Honour emphasised the risk that any final determination of the action could later be challenged as irregular if the plaintiff were subsequently found to be under a disability (at [20]).
The Court accepted the following principles from Snook v Magistrate Trevor Darge [No 2] (at [21]):
There is no fixed standard of mental capacity required at law
The standard fluctuates according to the legal character, complexity and significance of the matter
Proof of complete incapacity is not required
A person can lack capacity for legal proceedings while still managing daily activities
The Court must consider whether the person can understand the case, make decisions, and give instructions
Self-represented litigants are held to a higher standard of capacity than those with legal representation
Justice Lundberg stressed the serious consequence of a declaration under Order 70 RSC - namely, that it would "preclude the individual exercising their right to prosecute, compromise or participate in the specific litigation in their own name" (at [22]).
Rather than determining the application on the material before the Court, His Honour opted for the alternative pathway of seeking assistance from the Public Advocate (at [24]), but only after satisfying himself that the application had a "reasonable basis of succeeding" (at [24]).
The Court found that the defendant had raised the issue in a "legitimate manner" and that there was material capable of supporting the declaration sought (at [25]). This conclusion was reached after considering:
The material in the plaintiff's submissions and affidavit
The Court's own observations of the plaintiff in several appearances since early 2023
The "volume of the material adduced by the plaintiff and the nature of the serious allegations he raises"
The manner in which the plaintiff articulated allegations, which "goes well beyond the ordinary language of a passionate or zealous litigant in person" (at [26])
Of particular note, Justice Lundberg observed that the plaintiff's affidavit material contained "lengthy personal accounts of the plaintiff's life, his family and background, personal photographs one would not expect to be adduced in evidence in this action, and personal and intimate WhatsApp and text messages, as well as records of voicemail messages" - all deemed irrelevant to both the application and the proceeding (at [27]).
The Court also highlighted the plaintiff's "intense focus on those who stand against him" and "the belief that there is a network of people coordinating actions against him" (at [28]).
Justice Lundberg considered the complexity of defamation actions and the significant decisions a plaintiff would ordinarily need to make regarding pleadings, evidence, and responses to defences (at [29]).
Ultimately, the Court decided to request assistance from the Public Advocate under s 97(1)(c) of the Guardianship and Administration Act 1990 (WA) (at [30]-[31]), with specific orders structured to facilitate this assistance while preserving procedural fairness (at [37]).
Quantification and Assessment Aspects
Justice Lundberg's judgment provides valuable guidance on how courts assess a litigant's capacity in the absence of direct medical evidence. The Court identified several quantifiable factors that may indicate capacity concerns:
The volume of material produced by a litigant (the plaintiff filed 87 pages of submissions and a 156-page affidavit)
The relevance of material to the proceedings (substantial irrelevant personal content was noted)
The nature and manner of allegations made (references to "criminal networks" and conspiracies)
The complexity of the underlying proceedings (defamation involving multiple publications)
The litigant's conduct in court proceedings over time
The Court acknowledged that drawing inferences about capacity from these factors is "legitimate" (at [14]) but also that "the absence of direct medical evidence renders an applicant's task of discharging its burden of proof more onerous" (at [14]).
The judgment establishes that the threshold for referring the matter to the Public Advocate is that "the application has a reasonable basis of succeeding" (at [24]), which is evidently lower than the threshold for making the declaration itself.
Worked Example: Practical Application
Consider a solicitor representing a defendant in a complex commercial dispute where the unrepresented plaintiff exhibits concerning behaviours:
Scenario: The plaintiff has filed multiple, excessively lengthy submissions containing irrelevant personal information, makes allegations of widespread conspiracy against various institutions, demonstrates an inability to focus on relevant legal issues despite judicial guidance, and produces volumes of irrelevant evidence.
Step 1: Document all instances of concerning conduct or communications
Compile court transcripts showing the plaintiff's inability to follow judicial directions
Collate all written communications demonstrating disorganised thinking or paranoid ideation
Catalogue filed documents showing irrelevant content or inability to address legal issues
Step 2: Assess whether the conduct crosses the threshold from merely vexatious to suggesting incapacity
Compare to established case law (e.g., M -v- P [No 3], A v City of Swan [No 5])
Consider the complexity of the particular proceedings and demands on the litigant
Evaluate whether the conduct suggests an inability to understand the proceedings or make reasonable judgments
Step 3: Consider the ethical implications and proportionality
Is the application genuinely in the interests of justice, or merely tactical?
Are there less intrusive alternatives available?
What impact would the application have on the proceedings and the plaintiff?
Step 4: Frame the application with appropriate sensitivity
Propose the "alternative pathway" approach rather than seeking an immediate declaration
Structure orders similar to those in M -v- P [No 3] requesting Public Advocate assistance
Ensure all evidence presented is objective and factual, avoiding speculation
Step-by-Step Guidance for Practitioners
When faced with a potentially incapacitated opposing party, practitioners should:
Maintain detailed records of all interactions with the opposing party, particularly noting:
Inability to understand or engage with legal concepts
Persistent irrelevant submissions or evidence
Paranoid or delusional thinking in correspondence or submissions
Inability to follow court directions or understand procedural requirements
Consult the relevant procedural rules governing capacity in your jurisdiction (e.g., Order 70 RSC in Western Australia)
Consider whether the threshold for intervention is met:
Is there a genuine basis for concern beyond mere frustration with a difficult litigant?
Does the conduct go "well beyond the ordinary language of a passionate or zealous litigant in person"?
Is the nature of the proceedings sufficiently complex to require a higher standard of capacity?
Explore alternative pathways:
Consider whether a less intrusive approach might assist the opposing party
Identify relevant support services or authorities (e.g., Public Advocate) that might provide assistance
Frame the application appropriately:
Seek preliminary assistance from appropriate authorities before requesting declarations
Structure proposed orders to allow for investigation before determination
Request the court's guidance on procedure
Prepare for procedural delays:
Advise clients that such applications may extend timeframes
Consider whether interim arrangements are necessary
Maintain proportionality:
Ensure the scope of any application is confined to the specific proceedings
Avoid unnecessarily broad declarations that might impact the opposing party's autonomy in other matters
Evidence and Arguments for Each Side
For the Applicant (Party Questioning Capacity)
Evidence:
Court documents containing irrelevant, excessive, or disorganised content
Transcripts demonstrating inability to follow judicial guidance or respond to questions
Correspondence showing paranoid ideation or delusional thinking
Witness evidence of behaviour in court or mediation settings
Expert evidence (if available) regarding the cognitive demands of the specific proceedings
Arguments:
The Court has a duty to ensure parties can meaningfully participate in proceedings
Allowing proceedings to continue risks injustice to both parties
The complexity of the proceedings requires a certain level of capacity
The Court's parens patriae jurisdiction is protective, not punitive
The alternative pathway approach provides appropriate procedural safeguards
For the Respondent (Party Whose Capacity is Questioned)
Evidence:
Evidence of capacity to manage other aspects of life
Examples of logical and coherent submissions or correspondence
Evidence of previous successful litigation management
Character evidence from professional colleagues or associates
Expert evidence (if available) supporting capacity
Arguments:
The presumption of capacity must be respected
Passionate or unusual advocacy is not equivalent to incapacity
The application represents an attempt to impede access to justice
Less restrictive alternatives have not been explored
The absence of medical evidence is fatal to the application
The serious consequences for civil rights require a high evidentiary threshold
Key Takeaways for Legal Practice
Evidence threshold: While medical evidence is not strictly required for capacity applications, its absence significantly increases the burden of proof on the applicant.
Alternative pathways: Courts may prefer a staged approach involving investigative assistance from authorities such as the Public Advocate before making declarations.
Contextual assessment: Capacity requirements fluctuate according to the nature and complexity of the proceedings - defamation actions, with their complexity, demand a higher standard.
Preserving autonomy: Courts remain conscious of the serious impact of declarations on individual autonomy and will only intervene where genuinely necessary.
Tactical considerations: Practitioners must ensure capacity applications are genuinely motivated by legitimate concerns rather than tactical advantage.
Self-representation factor: Courts recognise that self-represented litigants require a higher standard of capacity than those with legal representation.
Documentation importance: Systematic documentation of concerning conduct or communications is essential for establishing sufficient grounds for investigation.
Conclusion
M -v- P [No 3] offers a nuanced approach to the challenging intersection of mental capacity and litigation rights. The judgment reinforces the Court's protective role while establishing procedural safeguards that respect individual autonomy. By adopting the "alternative pathway" of seeking Public Advocate assistance, Justice Lundberg has demonstrated a balanced approach that other courts may follow.
For practitioners, the case underscores the need for careful consideration before initiating capacity applications, the importance of thorough documentation, and the value of structured, proportionate approaches that prioritise investigation before declaration.
The decision ultimately serves as a reminder that while the legal system must protect vulnerable individuals, it must do so with appropriate restraint and procedural fairness, recognising that declarations of incapacity represent a significant limitation on fundamental rights of access to justice.