Workplace Investigations 101: What you need to know

Rising Stakes in Workplace Probes

Australian workplaces have seen a surge in obligations to manage psychosocial risks, including bullying, sexual harassment, and the stress of investigations themselves. Victoria's Occupational Health and Safety (Psychological Health) Regulations 2025, effective from 1 December 2025, mandate employers to identify and control such hazards, with explicit requirements for prevention plans and trauma-informed practices. In NSW, the Industrial Relations and Other Legislation Amendment (Workplace Protections) Act 2025 introduced a dedicated anti-bullying and sexual harassment jurisdiction in the Industrial Relations Commission, allowing compensatory damages and stop orders.

These changes build on the federal positive duty to prevent sexual harassment and broader Fair Work Act protections, but state-level variations add complexity. Employers in regulated sectors face additional reporting duties, such as to APRA for misconduct in financial services. High-profile cases in 2025 underscored that flawed investigations—marked by bias, delay, or inadequate support—can lead to constructive dismissal findings or breaches of procedural fairness.

The concrete risks include civil penalties, uncapped or high compensation in some forums, and reputational damage from perceived cover-ups, especially amid growing board scrutiny and legal representation in complaints. Non-obvious tensions arise in balancing confidentiality with transparency, maintaining privilege over investigation reports (which can be waived by broad disclosures), and integrating HR-led probes with WHS requirements without duplicating or conflicting processes. Inaction or superficial handling amplifies exposure, as tribunals increasingly demand person-centred approaches that account for cultural, neurodiverse, or trauma-related needs.