The $1.5 Million Mistake: Investigations as Psychosocial Hazard
The Rise of Psychosocial Hazards Under WHS Laws
Psychosocial hazards are workplace conditions and processes that can cause psychological harm — including stress, anxiety, depression and post-traumatic stress disorder. Under the Work Health and Safety (WHS) laws, employers (as persons conducting a business or undertaking, or PCBUs) have a duty to manage risks to both physical and psychological health so far as is reasonably practicable. A workplace investigation that lacks fairness, transparency or proper process can itself be a psychosocial hazard.
Recent regulatory developments and codes of practice emphasise that employers should identify, assess and control psychosocial risks just like physical hazards. These include job design, workload, organisational change, bullying and conflict — all of which can be triggered or worsened by poorly handled investigations.
Employer Duty of Care During Investigations
Under the WHS framework, psychological health is part of the legal definition of “health,” meaning psychological risks must be managed alongside physical risks. This means employers must eliminate or minimise psychosocial risks arising from work systems and processes, including workplace investigations, disciplinary action and decisions about termination.
A workplace investigation itself can become a hazard when it introduces ambiguity, perceived unfairness, lack of transparency, or inconsistent treatment — all of which are known psychosocial stressors.
Elisha v Vision Australia: A Turning Point
The High Court of Australia’s decision in Elisha v Vision Australia Ltd [2024] HCA 50 crystallises the legal risk of failing to manage investigations with adequate procedural fairness.
In that case, the court overturned long-established precedent and held that an employee could recover damages for a psychiatric injury caused by the manner of their dismissal where the employer’s disciplinary procedure was incorporated into the employment contract, but the procedure was not properly followed, resulting in serious psychological harm.
At first instance, almost $1.5 million in damages was awarded, underscoring the financial consequences of poorly managed processes. The High Court reinstated that award, finding that psychiatric injury was a foreseeable outcome of a flawed investigation and disciplinary process.
This ruling sends a strong signal: investigation processes themselves — if contractually mandated or procedurally deficient — can expose employers to significant risks.
How Investigations Cause Psychological Injury
Workplace investigations often involve allegations, stressful questioning, suspension, reputational impact, uncertainty and fear of job loss. Even when no formal breach is found, poorly managed processes can:
- Leave participants confused and anxious
- Damage trust in leadership
- Create perceptions of bias or victimisation
- Prolong uncertainty and stress
- Amplify workplace conflict
Psychosocial hazards like uncertainty, low control, lack of support, poor organisational justice and conflict are recognised risk factors for psychological harm. When investigations aren’t conducted fairly or transparently, they can become a source of stress rather than resolution.
When Process Becomes the Legal Risk
Investigations become legal risks when they intersect with:
- Contractual Obligations
If employer policies and procedures are incorporated into contracts — as in Elisha — failure to follow them can lead to breach of contract claims and damages for psychiatric harm.
- WHS Duties
Under WHS laws, employers must manage psychosocial risks as part of their duty of care. A flawed investigation undermines this duty.
- Broader Legal Exposure
Poor investigations can also intersect with discrimination, retaliation or adverse action claims, each of which may trigger additional liability beyond WHS. Procedural fairness and documentation are critical risk mitigators.
Trauma-Informed Investigation Principles
To reduce psychosocial risk during investigations, employers should adopt a trauma-informed approach that:
- Ensures clarity about the purpose and scope of the investigation
- Communicates transparently with all parties
- Provides access to support (e.g. EAP, counselling)
- Treats individuals with dignity and respect
- Avoids unnecessary delays or ambiguity
- Offers opportunities to respond and be heard
A trauma-informed lens also means assessing whether the investigation approach itself may be a stressor and taking steps to minimise harm while still achieving fact-finding and accountability.
Governance and Board-Level Exposure
Mismanaging psychosocial hazards and investigations is no longer just an HR issue — it is a governance issue.
Boards and senior leaders have oversight responsibilities for WHS performance, including psychological health. Regulators and courts increasingly scrutinise whether organisations have systems to identify, assess and control psychosocial risks, and whether these are embedded at leadership and governance levels.
Failing to provide adequate oversight of investigation practices, training and WHS compliance can increase organisational risk, affecting reputation, liability and financial stability.
Practical Risk Management Strategies
To proactively manage psychosocial risk during investigations, employers should:
- Review and Update Policies
Ensure investigation and disciplinary procedures are clear, legally sound, and regularly reviewed.
- Clarify Contractual Terms
Be cautious about inadvertently incorporating policies into employment contracts unless intended.
- Train Investigators
Ensure investigators understand procedural fairness, WHS obligations, confidentiality and trauma-informed practice.
- Communicate with Care
Set expectations clearly and keep participants informed about process, timelines and rights.
- Document Everything
Maintain thorough records of decisions, communications and rationales.
- Provide Support
Offer access to support services for employees involved in stressful processes.
- Monitor and Improve
Use feedback and WHS data to improve investigative systems and reduce psychosocial risk.
Conclusion
Workplace investigations can be more than administrative exercises — when mismanaged, they become psychosocial hazards that harm workers and expose employers to serious legal risk, as exemplified by Elisha v Vision Australia. Integrating psychological risk management into investigation practices is now part of modern WHS compliance.