Statement of Principles concerning suicide and attempted suicide (Reasonable Hypothesis) (No. 39 of 2025)

This instrument is a Statement of Principles (SoP) concerning suicide and attempted suicide (Reasonable Hypothesis) made under subsection 196B(2) of the Veterans' Entitlements Act 1986 (VEA) (see s 3). It commenced on 19 May 2025 (s 2) and repealed the earlier 2016 SoP on the same subject (s 4). The SoP applies to claims "to which section 120A of the VEA or section 338 of the Military Rehabilitation and Compensation Act 2004 (MRCA) applies" (s 5). The Repatriation Medical Authority (RMA) made the instrument and records that it is of the view there is "sound medical‑scientific evidence" that suicide and attempted suicide can be related to relevant service (s 8).

Mechanically, the instrument performs a narrowly defined legal function within the veterans compensation system: it sets the factual and medical factors that, if present and related to relevant service, will raise a "reasonable hypothesis" connecting suicide or attempted suicide, or death from those events, with relevant service (see s 7 and s 9). It prescribes the definitions used to interpret those factors in Schedule 1 (s 6, Sch 1). It also provides a rule for cross‑application of other SoPs where a factor in this instrument refers to an injury or disease covered by another SoP (s 11).

The operative decision rule is procedural rather than substantive. Section 9 requires that at least one enumerated factor must exist "before it can be said that a reasonable hypothesis has been raised" linking the condition with service. Section 10 then requires that any such factor "must be related to the relevant service rendered by the person." One enumerated factor (identified in subsection 9(29) in the instrument) is subject to a further temporal and causal limitation: it "applies only to material contribution to, or aggravation of, suicide and attempted suicide where the person's suicide and attempted suicide was suffered or contracted before or during (but did not arise out of) the person's relevant service" (s 10(2)).

The instrument does not itself create monetary entitlements, nor does it set decision‑making procedures for benefit assessment beyond specifying the factors that establish the reasonable hypothesis link. It is framed to be used by decision makers under the VEA/MRCA in reaching causation assessments for claims that invoke section 120A of the VEA or section 338 of the MRCA (s 5). The Schedule contains definitions of key terms used throughout the SoP (Sch 1).

The compilation includes an amendment (No. 77 of 2025) registered 8 September 2025 and effective 22 September 2025 (Endnote 3). Endnote 4 records a targeted amendment history to certain definitions in the dictionary, notably the phrasing around intimate partner, intimate relationship and intimate partner violence (Endnote 4).

The central legal concept in the instrument is the "reasonable hypothesis" causal threshold used in veterans' benefit claims. The Repatriation Medical Authority expresses that, based on medical‑scientific evidence, suicide and attempted suicide can be connected to relevant service (s 8). The SoP operationalises that view by listing specific factors which, if present at or before the clinical onset and related to relevant service, raise the reasonable hypothesis necessary for an administrative decision maker to accept a service connection (s 9).

Key definitional concepts are in Schedule 1. Relevant service is defined to include multiple service categories under both the VEA and MRCA: operational service, peacekeeping service, hazardous service, British nuclear test defence service under the VEA, as well as warlike and non‑warlike service under the MRCA (Sch 1, "relevant service"). Suicide and attempted suicide are defined in s 7(2): suicide is "the act of intentionally killing oneself" and attempted suicide is "an attempt to intentionally kill oneself, but which has a non‑fatal outcome" (s 7(2)). The definition of "death from suicide and attempted suicide" clarifies inclusion of deaths from a terminal event or condition contributed to by the person's suicide or attempted suicide (s 7(3)).

Clinically relevant terms include "clinically significant disorder of mental health", defined in the Dictionary as a disorder "of sufficient severity to warrant ongoing management" and importantly noting that warranting management does not require that management was actually received (Sch 1). The phrase "clinical onset" appears repeatedly in section 9 as the temporal anchor for many factors; practitioners will therefore need to locate and evidence the date or period of clinical onset when applying the SoP.

Stressors are tiered. Category 1A and 1B stressors (Sch 1) are severe traumatic events. Category 1A includes life‑threatening events, serious physical attack or sexual assault, being threatened with a weapon, held captive or tortured. Category 1B includes killing or maiming a person, witnessing a person being killed or critically injured, seeing atrocities or human remains/casualties (with exclusions). Category 2 stressors are chronic negative life events causing ongoing distress, including caregiver burden, social isolation, racism, relationship breakdown, workplace disharmony or bullying, sexism, legal issues, severe financial hardship, or deterioration in health of a close person (Sch 1).

The SoP enumerates a broad set of specific, concrete factors (s 9): prisoner of war status before clinical onset; a range of named mental health disorders at clinical onset; exposure to stressors (category 1A, 1B, or category 2 within specified time windows); family bereavements or attempted suicides of relatives; perpetrator of bullying; childhood maltreatment; self‑injurious acts; severe medical disability; epilepsy; persistent pain; failed academic assessment; certain medication changes (with time windows and age limits in some items); specific medications and substances with short windows (from 12 hours to 6 months); traumatic brain injury and concussion; bariatric surgery within a ten‑year window; imminent relocation to residential aged care; potentially morally injurious events; intimate partner violence within one year; and inability to obtain appropriate clinical management prior to clinical worsening (s 9; Sch 1).

Primary subjects are veterans, members of Peacekeeping Forces, and members of the Forces covered by the VEA or MRCA whose claims fall within the statutory provision cited (s 5). The instrument states it applies to claims to which s 120A of the VEA or s 338 of the MRCA applies (s 5). Those statutory cross‑references indicate the SoP is intended for use in statutory benefit determinations under those provisions; the instrument itself does not alter who is eligible for benefits under those Acts, but it defines the factors decision makers must consider when assessing connection between suicide/attempted suicide and relevant service.

Decision makers in government (for example the Department administering the VEA and MRCA and medical assessors) are affected functionally because they must use this SoP when deciding causation issues in relevant claims. The Repatriation Medical Authority is the authoring body and records the evidentiary basis for the factors (s 8). Other parties that will be directly affected include legal representatives and advocates for claimants, clinicians preparing reports (because the SoP defines clinically relevant terms and temporal anchors), coroners and treating practitioners whose records provide the material to prove factors, and tribunals or courts that may review administrative decisions where this SoP is applied.

Family members and close associates of serving or ex‑serving personnel are secondary stakeholders in practice. Several factors focus on loss or adverse experiences in close family relationships (for example parental death or attempted suicide where the claimant was aged 18 or under, sibling suicide within 15 years, death of a close person within five years), which gives family events evidentiary significance in claims (s 9(6)-(12)). This instrument therefore changes the evidentiary salience of certain family events and health records in claims handling.

Other affected groups include medical and allied health clinicians whose assessments determine "clinical onset" and record psychiatric diagnoses. The definition "clinically significant disorder of mental health" requires practitioners to evaluate whether a disorder warranted ongoing management even if no management was provided (Sch 1, "clinically significant disorder"). For younger claimants (25 and under) the SoP attaches particular weight to changes in antidepressant therapy within eight weeks before clinical onset (s 9(22)), implicating treatment records of younger veterans.

Lastly, because section 11 allows factors that refer to other SoPs to be governed by those SoPs "as in force from time to time", any person involved in a claim where multiple SoPs intersect will be affected by subsequent amendments to those other SoPs. The endnotes show this instrument was amended in 2025 (Endnote 3 and 4), so practitioners must track amendments to both this instrument and connected SoPs.

The instrument itself does not create statutory duties in the criminal or administrative penalty sense. Instead it imposes a prescriptive evidential duty on decision makers assessing causation: before a "reasonable hypothesis" is raised linking suicide or attempted suicide to relevant service, at least one factor enumerated in section 9 must exist (s 9). Decision makers therefore have an obligation to examine whether any of the listed factors are present, and whether any present factor is related to relevant service (s 10(1)).

Section 10(2) sets a specific limitation on one enumerated factor: the factor listed in subsection 9(29) applies only to material contribution to, or aggravation of, suicide and attempted suicide where the suicide/attempt was suffered or contracted before or during (but did not arise out of) the person's relevant service. That imposes a narrower analytical treatment on that particular factor and requires decision makers to apply the temporal and causation limitation in s 10(2) when considering it.

Section 11 creates a duty to apply other SoPs where a factor in this instrument refers to an injury or disease covered by another SoP. The duty is to apply "the factors in that Statement of Principles ... as in force from time to time" (s 11). Practically, decision makers must cross‑reference and apply the current terms of other SoPs when an overlapping injury or disease is invoked.

Claimants (and their representatives) have a corresponding practical right to rely upon factors listed in this SoP when seeking to establish a reasonable hypothesis of service connection under the VEA and MRCA provisions to which the instrument applies (s 5, s 9). The SoP defines what evidence and medical conditions will be treated by the RMA as sufficient to raise the reasonable hypothesis; claimants may therefore marshal evidence specifically aimed at the listed factors and the temporal anchors the instrument requires (for example clinical onset dates, medication start/change dates, events within specified time windows such as parent death within 25 years where claimant was 18 or younger, sibling suicide within 15 years, medications within 14 days, MDPV/25I‑NBOMe within 12 hours).

The RMA expresses a view about the medical‑scientific basis for the link between suicide/attempted suicide and service (s 8). While framed as the RMA's view rather than a judicial finding, it functions as an evidentiary standard that decision makers and tribunals will use. The SoP also preserves the procedural rule that the terms of other SoPs apply when relevant (s 11), which gives claimants a right to have overlapping SoPs applied where applicable.

The instrument does not prescribe criminal or civil penalties, nor does it create direct enforcement mechanisms. It is an administrative SoP intended to guide medical causation assessments in veterans' claims under the VEA and MRCA (s 3, s 5, s 8). Consequently, enforcement is functional and indirect: the SoP will be applied by the relevant decision making bodies when determining entitlement under the statutory provisions identified in s 5. Where a decision maker accepts that the SoP raises a reasonable hypothesis linking suicide or attempted suicide to relevant service, that fact will be one element in the overall statutory entitlement decision under the VEA or MRCA.

Administrative enforcement therefore operates through the claim determination process in the Department or tribunal processes, and through judicial review of administrative decisions where a claimant seeks review. The instrument itself does not stipulate investigation powers, penalties, or sanctions for non‑compliance by claimants, clinicians, or third parties. Nor does it create a standalone statutory offence for failing to disclose events referenced by the SoP.

Because the SoP is a determinative evidentiary instrument in claims, practical enforcement arises through the consequences of an administrative decision. An adverse finding , for example, that none of the listed factors exists or that an existing factor is unrelated to relevant service as required by s 10 , can lead to denial of compensation or other benefits under the VEA or MRCA. Conversely, acceptance on causation grounds consistent with the SoP can support an award under those Acts. Those administrative outcomes are the principal "enforcement" mechanism linked to the SoP.

The compilation and endnotes record amendments and repeal of the 2016 instrument (s 4, Endnotes 3 and 4). Any change to the SoP will alter how decision makers apply the reasonable hypothesis standard, which is an indirect enforcement dynamic: amendments change the evidentiary rule set used in claims, potentially affecting claim outcomes. Practitioners should therefore monitor amendment history recorded in the endnotes (Endnote 3 and 4) to anticipate enforcement‑relevant changes.

The instrument is expressly made under subsection 196B(2) of the VEA (s 3). Its application is limited to claims that fall within section 120A of the VEA or section 338 of the MRCA (s 5). Those cross‑references define the statutory context: the SoP is a statutory instrument used to assess causation for specific claims in the veterans' compensation framework. Section 11 provides a mechanism for interaction with other Statements of Principles: where a factor in this SoP refers to an injury or disease covered by another SoP, the factors in that other SoP "apply in accordance with the terms of that Statement of Principles as in force from time to time" (s 11). This establishes a hierarchy of interaction. When a factor refers to another disease or injury, decision makers must consult and apply the current terms of the other SoP.

The Dictionary cross‑refers to both the VEA and MRCA and incorporates statutory terms that determine the scope of "relevant service" (Sch 1). That definition includes several service categories under both Acts, linking the SoP's factors to those statutory categories (Sch 1, "relevant service"). The instrument therefore operates as a medical‑evidential layer within the broader statutory architecture of veteran entitlements and compensation law.

Endnote 4 records that sections 2 and 4 were amended or replaced with references to provisions of the Legislation Act 2003 (indicating technical or editorial changes in the compilation process). Specifically, Endnote 4 reports "Section 2…….. rep LA s 48D" and "Section 4…….. rep LA s 48C". Those annotations reflect how the compiled instrument interacts with the Legislation Act and compilation conventions, and indicate that some commencement and repeal text was adjusted to align with the Legislation Act framework. Practitioners should consult the Register for any uncommenced amendments or modifications (the compilation notes advise that uncommenced amendments are not shown in the text and to check the Register).

The SoP's factors themselves can import the substantive law from other regulatory or criminal regimes in the sense that evidence of events (for example being detained or held in custody noted in the category 2 stressor list, Sch 1(g)) may appear in court records, police files or sentencing notes. The SoP does not create a legal nexus with those regimes, but it requires decision makers to consider their evidential output.

Finally, the instrument does not displace statutory decision making under the VEA or MRCA. It provides an evidentiary standard for causation, which must be applied within the procedural and substantive entitlement rules of the parent Acts. Appeals, reviews and judicial oversight remain governed by the relevant administrative law and tribunal frameworks that apply to decisions under the VEA and MRCA.

The compilation records the instrument itself (No. 39 of 2025) and a registered amendment (No. 77 of 2025) that took effect 22 September 2025 (Endnote 3). The initial instrument was registered on 16 April 2025 and commenced 19 May 2025 (Endnote 3). Endnote 4 provides a granular amendment history of particular provisions: it lists that Section 2 and Section 4 were affected in the compilation process with references to the Legislation Act (Endnote 4). It also records that Schedule 1 definitions for "intimate partner violence", "intimate relationship" and "intimate partner" were re‑stated or replaced by Amendment No. 77 of 2025 (Endnote 4).

The endnotes make clear that the compilation does not show uncommenced amendments and notes that modifications made by other laws may alter operation without amending the text shown in the compilation. The compilation states the dates and registration numbers for both the original instrument and the amendment: Statement of Principles No. 39 of 2025 (registered 16 April 2025, commenced 19 May 2025) and Amendment No. 77 of 2025 (registered 8 September 2025, commenced 22 September 2025) (Endnote 3).

The amendment entry in Endnote 4 identifies specific textual changes limited to the Dictionary definitions. The Schedule adjustments appear to refine or replace the definitions around intimate partner, intimate relationship and intimate partner violence. The compilation otherwise retains the body of the instrument as made in 2025. The endnotes also include standard compilation metadata about how misdescribed amendments would be recorded and the legislative history entries that practitioners should use to track the instrument's provenance.

Practitioners must take two practical points from the amendment history: first, the SoP is not static; the RMA and Parliament can amend the dictionary and factors, which will change the evidentiary framework used in claims. Second, the compilation cautions that uncommenced amendments are not included in the compiled text and directs users to the Register for the compiled law to check for any uncommenced amendments or modifications. For compliance and litigation planning, therefore, continuous monitoring of the Register and endnotes is required.

The compiled instrument and its endnotes do not record any litigation engaging this SoP. The text contains no judicial decisions, case references, or tribunal outcomes. Endnote 3 lists the registration and commencement details for the instrument and its amendment, and Endnote 4 records amendment history; neither endnote mentions litigation.

Because the SoP is an evidentiary instrument used in administrative decisions under the VEA and MRCA, litigation that would implicate it would typically arise in administrative appeals or judicial review proceedings challenging a decision maker's application of the SoP to a particular claimant. The instrument itself does not name any cases. The lack of cases in the compilation means there is no source‑provided judicial interpretation or precedent in the material you supplied. Practitioners seeking to understand how courts and tribunals treat the reasonable hypothesis standard in the context of SoPs will need to consult external case law under the VEA and MRCA frameworks, but no such cases are named or summarised in this instrument.

The compilation's silence on litigation does not mean disputes will not arise. Sections with potentially contestable content are those requiring temporal determinations (for example the "clinical onset" anchor used throughout s 9), subjective evaluations (for example whether an event was a "potentially morally injurious event" or whether a "clinically significant disorder of mental health" warranted ongoing management), and the relation to "relevant service" under s 10. These are the typical features of administrative causation disputes. Absent cases in the source, readers must treat litigation risk as procedural and contingent on how decision makers and tribunals apply the instrument, rather than as established by precedent within this compilation.

The instrument contains numerous precise, temporally framed factors and definitional caveats that create practical pitfalls for claimants, clinicians and decision makers. The following are concrete "gotchas" derived from the text.

• Temporal anchors matter: many factors are stated with strict time windows measured "before clinical onset" (for example persistent pain for at least three months before clinical onset, failed academic assessment within 30 days before clinical onset, antidepressant therapy change within eight weeks for persons aged 25 or younger, specified medications within 14 days, mefloquine/chloroquine within six months, MDPV/25I‑NBOMe within 12 hours, bariatric surgery within ten years, concussion within five years) (s 9). Practitioners must identify and evidence the clinical onset date accurately.

• "Clinically significant disorder of mental health" does not require treatment: the Dictionary defines the term as warranting ongoing management but expressly notes that actual management need not have occurred (Sch 1). A claimant may be able to rely on the existence of such a disorder even if they did not receive treatment, but medical evidence must support the assertion that it warranted ongoing management.

• Witness exclusions and definitions: category 1B stressor uses "witness" which the Dictionary defines narrowly as someone who experiences an incident at the time it occurs and can give direct evidence; exposure only to media coverage does not qualify as witnessing (Sch 1, "witness"). Claim evidence based on media exposure will therefore generally be excluded from that factor.

• Cross‑SoP dependencies: where a factor refers to an injury or disease covered by another SoP, the other SoP's factors apply "as in force from time to time" (s 11). Practitioners must check the current version of any referenced SoP, as changes in that other SoP will affect the application here.

• The "relationship to service" requirement is essential and distinct: section 10 requires any factor in section 9 to be related to the relevant service. A factor that exists but is unrelated to relevant service does not satisfy the SoP. For the factor described in subsection 9(29) there is an additional constraint: it only applies where suicide/attempt was suffered or contracted before or during (but did not arise out of) relevant service, and then only for material contribution or aggravation (s 10(2)). The instrument thereby limits the scope of that particular factor.

For claimants and their representatives, complying with the requirements of this SoP means assembling targeted evidence mapped to the instrument's factors and the relationship to relevant service mandated by s 10. The following steps are concrete, source‑grounded actions to comply with the instrument's structure and the statutory context it sits within.

1. Identify the statutory pathway: confirm the claim is one to which s 120A of the VEA or s 338 of the MRCA applies (s 5). The SoP only governs the causation question in those claim types.

2. Establish clinical onset: the majority of section 9 factors are anchored to "clinical onset." Obtain and document the clinical onset date or period from medical records, psychiatric assessments, hospital admissions, or specialist reports. Where onset date is contested, secure treating practitioner opinions referencing symptom emergence and clinical milestones.

3. Map factors to the SoP list: review s 9 and the Schedule 1 definitions and identify any factor that is present. Use the exact language of the SoP when describing events (for example "category 1A stressor" or "category 2 stressor") and cite the corresponding Dictionary definitions (Sch 1). Ensure any category 1 or category 2 stressor claim is supported by contemporaneous service records, incident reports, witness statements (consistent with Sch 1's narrow "witness" definition where applicable), or official records.

4. Timeframe evidence: for factors with explicit time windows, collect documentary evidence that the event falls within the window (for example parental death where claimant was under 18 and within 25 years before clinical onset, sibling suicide within 15 years, medication exposure within 14 days, MDPV/25I‑NBOMe within 12 hours, mefloquine/chloroquine within six months). Supply coroner or hospital reports, pharmacy dispensing records, prescription charts, and clinician notes to establish timing.

5. Document mental health disorders: if asserting a "clinically significant disorder of mental health", obtain a psychiatric or relevant specialist report stating that the disorder was of sufficient severity to warrant ongoing management. The Dictionary clarifies that actual receipt of management is not required; the clinician should therefore address the severity and management needs explicitly (Sch 1).

6. Prove relationship to service: s 10 requires the factor to be related to relevant service. Assemble service records (operational, peacekeeping, hazardous, British nuclear test defence service, warlike or non‑warlike service under MRCA), incident logs, disciplinary files, separation reports, or other official sources establishing that the factor arose out of or was connected to relevant service. For the factor subject to s 10(2) limitation, establish timing relative to service and whether the suicide/attempt was suffered or contracted before or during service and did not arise out of service.