Workplace Incident Investigation

Independent. Evidence-based. Available 24 hours a day.

Safetysure provides independent workplace incident investigation services across Australia. Our investigations establish the facts surrounding workplace fatalities, serious injuries, dangerous incidents, and high-potential near misses — identifying immediate causes, underlying conditions, and systemic organisational failures. We draw on more than 30 years of experience in high-risk industries including mining, construction, ports, and manufacturing. Findings are factual, defensible, and structured to withstand regulatory and legal scrutiny.

Call our 24-hour response line: 1300 087 888.

What is a workplace incident investigation?

A workplace incident investigation is a structured, evidence-gathering process that establishes the facts surrounding a workplace event  whether a fatality, serious injury, dangerous incident, or high-potential near miss. Its purpose is not to assign blame but to identify immediate causes, underlying conditions, and systemic organisational failures that allowed the incident to occur.

Effective investigation requires independence, methodological rigour, and rapid mobilisation. Evidence degrades quickly. Physical scenes change. Witnesses form shared recollections. An investigation that begins late or without independence starts with compromised foundations.

Safetysure investigations are conducted by qualified consultants who are not employed by, contracted to, or otherwise connected to the organisation under investigation. That independence is not a formality. It is the condition that makes findings credible to a regulator, a coroner, a court, or a board.

When does an organisation need an independent investigation?

An organisation needs an independent investigation when a workplace fatality, serious injury, dangerous incident, or high-potential near miss occurs, or whenever regulatory, coronial, or legal scrutiny is involved. Safetysure also provides independent review of completed internal investigation reports — assessing methodology, causal analysis depth, and report defensibility before significant decisions are made.

Workplace fatalities

A workplace fatality is the most serious incident category under Australian work health and safety legislation. It triggers mandatory notification to the relevant regulator, a duty to preserve the scene, and the real possibility of investigation by the regulator, coronial inquiry, and criminal prosecution under industrial manslaughter provisions now in force in every Australian state and territory, as well as at Commonwealth level for Commonwealth-regulated workplaces.

An organisation facing a workplace fatality needs independent technical expertise immediately. Safetysure can mobilise to site, preserve physical and documentary evidence, conduct witness interviews under appropriate protocols, and produce a WHS investigation report for legal counsel and, where appropriate, the regulator. The conflict of interest that prevents an organisation investigating itself is structural, not personal.

Major incidents and dangerous occurrences

Many serious incidents do not result in fatality but still meet the definition of a notifiable incident or dangerous occurrence. These include explosions, structural collapses, fires, uncontrolled releases of hazardous substances, and incidents involving pressure vessels, lifting equipment, or electrical infrastructure. The notification obligation is immediate in most jurisdictions.

Safetysure has investigated major incidents across a range of technical domains, including fire and explosion events in industrial plant, electrical infrastructure failures, and incidents involving mobile and fixed plant.

Incidents attracting regulatory scrutiny

Improvement notices, prohibition notices, and formal investigation notices from a work safety regulator signal that the regulator’s confidence in the organisation’s safety management is in question. An independent investigation with genuine root cause analysis and systemic corrective action, provided to the regulator, is materially more persuasive than an internal review. This is where post-incident regulatory response capability is most consequential.

Near misses and high-potential incidents

Best-practice safety management treats high-potential near misses with the same investigative rigour as actual incidents. The systemic causes are identical — the only difference is outcome. Safetysure helps organisations establish proportionate investigation protocols that treat near misses as the learning opportunities they represent.

Independent review of internal investigation reports

Organisations that have conducted their own investigation , whether by internal safety staff or an external consultant sometimes need an independent expert assessment of the report before acting on its findings. This arises in three situations: where the organisation is uncertain whether the investigation reached the right causal conclusions; where a regulator, insurer, or legal team has questioned the adequacy of the investigation; or where a significant disciplinary, operational, or legal decision will be based on the report’s findings.

Safetysure provides independent review of completed investigation reports as a standalone service. The review assesses the investigation against established methodology standards: whether the evidence base was adequate, whether causal analysis went beyond the immediate cause to identify underlying and systemic factors, whether the corrective action recommendations address the actual causes identified, and whether the report would withstand examination by a regulator, coroner, or court.

The distinction between reviewing findings and re-investigating is important. Safetysure’s independent review assesses the quality and completeness of the investigation process and its outputs. It does not duplicate the investigation. Where the review identifies material gaps in the original investigation, Safetysure can advise on whether supplementary investigation is warranted and, if so, what it should cover.

What is a notifiable incident and what are your obligations?

A notifiable incident in Australia is the death of a person, a serious injury or illness, or a dangerous incident at or arising from a workplace. The PCBU must notify the relevant work safety regulator immediately on becoming aware. Serious injuries include in-patient hospital admission, amputation, serious lacerations, serious head or eye injury, serious burns, and loss of a bodily function.

The following categories are notifiable in all Model WHS Act jurisdictions — Queensland, New South Wales, the Australian Capital Territory, South Australia, Tasmania, the Northern Territory, and the Commonwealth:

• The death of a person
• A serious injury or illness: in-patient hospital admission, amputation, serious lacerations, serious head or eye injury, serious burns, loss of a bodily function, and other categories specified in the relevant regulation
• A dangerous incident: uncontrolled escape of a substance, implosion or explosion, uncontrolled fire, electric shock, collapse of scaffolding or a temporary structure, collapse of an excavation, and others specified in the relevant regulation

Note: In December 2025 the Safe Work Australia model WHS Act was amended to add violent incidents and notifiable extended absences (15 or more consecutive days). These amendments apply only once adopted by each individual jurisdiction — confirm the current position in your jurisdiction before relying on them.

Victoria’s Occupational Health and Safety Act 2004 operates on materially similar notification principles. Western Australia operates under its own WHS Act 2020 — Resources Safety within the Department of Energy, Mines, Industry Regulation and Safety (DEMIRS) administers the mining and petroleum sectors under the Mines Safety and Inspection Act 1994 (WA) and related legislation.

What investigation methodologies does Safetysure use?

Safetysure applies established investigation methodologies — including ICAM (Incident Cause Analysis Method), 5 Whys, barrier analysis, fault tree analysis, and change analysis — selected to fit the industry context and technical complexity of each engagement. ICAM is widely used in Australian mining, oil and gas, and utilities. Other sectors and incident types draw on different frameworks. The methodology follows the evidence, not a fixed template.

ICAM — the Incident Cause Analysis Method — was developed in Australia in the 1990s, drawing on James Reason’s Swiss Cheese model of organisational accidents. It examines four levels of causation: absent or failed defences, individual and team actions, task and environment factors, and organisational factors. It is widely used in Australian mining, oil and gas, and utilities sectors, and is mandated or strongly preferred by major resource companies and most state mining regulators for serious incident investigations.

For incidents outside the resources sector — construction, manufacturing, warehousing, transport — the investigation methodology is selected to match the incident type and evidentiary demands. Fault tree analysis suits complex technical failures. Barrier analysis suits process safety and plant incidents. 5 Whys suits contained, lower-complexity investigations. Change analysis suits incidents following operational changes. Safetysure selects the framework, or combination of frameworks, that will produce the most defensible causal analysis for each specific engagement.

How does Safetysure conduct a workplace incident investigation?

Safetysure investigations follow five phases: immediate response and scene attendance, evidence collection and documentation, causal analysis using the methodology best suited to the incident type, WHS investigation report production, and corrective action support. The process is structured to produce findings that withstand regulatory and legal scrutiny, presented to the organisation’s board, legal counsel, insurers, and the regulator simultaneously.

Phase 1 – immediate response and scene attendance

On notification, a Safetysure consultant confirms the scope, notification status, and scene preservation requirements, and mobilises to site where operationally feasible. Immediate priorities are: confirming emergency services have been notified; advising on scene preservation; identifying and sequencing witnesses before recollections converge; securing physical evidence; and reviewing the incident register and available documentary record.

Phase 2 – evidence collection and documentation

Physical evidence is documented using photography, video, dimensional measurement, and where required, specialist technical testing. Safetysure has conducted investigations requiring structural analysis, electrical testing, atmospheric sampling, dust and contaminant analysis, and microbiological assessment. Witness interviews are conducted using structured cognitive interview principles, separately, and documented contemporaneously.

Phase 3 –  causal analysis

Causal analysis identifies not only the immediate cause of the incident but the underlying conditions and systemic organisational factors that created the conditions for it to occur. The methodology applied — ICAM, fault tree analysis, barrier analysis, 5 Whys, or a combination — is selected to fit the industry context and incident type. In mining and resources environments, ICAM is applied as standard. In other sectors, the framework follows the evidence.

All causal analysis examines three levels: immediate causes (the direct physical or human actions that triggered the event); underlying causes (the conditions and behavioural factors that allowed them to develop); and systemic causes (the organisational, managerial, and cultural failures that persisted). Systemic cause analysis is the level most frequently absent from internal investigations and most consequential for prevention.

Phase 4  – WHS investigation report

The WHS investigation report is structured to serve multiple audiences simultaneously: the board and senior leadership, the regulator, legal counsel, insurers, and, where applicable, coronial or criminal proceedings. It includes a factual account of the incident, an evidence log, causal analysis findings at immediate, underlying, and systemic levels, a corrective action plan with assigned responsibility and timeframes, and a compliance assessment against the relevant legislative framework.

Phase 5  – corrective action support

Safetysure can support implementation of corrective action recommendations through follow-up site attendance, verification of control measures, and progress reporting to the board or regulator. Where the investigation identifies systemic failures in the safety management system, Safetysure can assist the organisation to redesign the affected system components.

What are officer due diligence obligations after a workplace incident?

Under section 27 of the Work Health and Safety Act 2011, an officer of a PCBU has a personal duty to exercise due diligence to ensure the PCBU complies with its WHS duties. The officer may be prosecuted whether or not the PCBU has also been convicted. Due diligence includes taking reasonable steps to ensure the PCBU has appropriate processes for receiving and responding to information about incidents, hazards, and risks.

When a serious incident occurs, the manner in which an officer responds is itself evidence of whether due diligence was exercised. An officer who initiates an independent, technically credentialled investigation, ensures the regulator is promptly notified, preserves the scene appropriately, and acts on the investigation’s findings has created a documented record of due diligence in practice.

An officer who permits an internal investigation of doubtful independence, delays notification, or allows the scene to be disturbed before the regulator attends has done the opposite. The investigation process is not a legal formality  it is a direct expression of the organisation’s safety governance.

Does legal professional privilege protect a workplace investigation report?

A workplace investigation report is not automatically subject to legal professional privilege. Privilege attaches only when the dominant purpose of the investigation is to obtain legal advice or prepare for anticipated legal proceedings. A report produced for both operational improvement and legal defence is unlikely to be privileged. Independent investigation reports produced under legal counsel direction, for the purpose of legal advice, can be protected.

A common and legally defensible structure is a dual-track investigation: an operational report produced for management and, where required, the regulator; and a separate privileged investigation conducted under the direction of legal counsel for the purpose of informing the organisation’s legal defence. Safetysure works within both structures.

A further risk warrants attention: privilege once established can be waived. Recent decisions confirm that disclosing the evidentiary basis of findings — for example, in an outcome letter to the employee investigated — can constitute waiver over the entire report, exposing it to production to regulators and in proceedings. The management of communications to investigation participants requires careful planning from the outset.

Which industries does Safetysure investigate?

Safetysure’s investigation practice is concentrated in Australian high-hazard industries: mining and resources, construction, manufacturing and processing, ports and logistics, and transport and warehousing. Each sector carries distinct technical demands and regulatory expectations. Methodology is selected to match the industry context — ICAM in mining and resources, fault tree analysis and barrier analysis for complex technical failures, 5 Whys and change analysis for other incident types.

Mining and resources

Mining investigation requires expertise in underground and open cut operations, coal and metalliferous mining, and the legislative frameworks of mining safety regulators in Queensland, Western Australia, and New South Wales. ICAM is the expected methodology in this sector, mandated or strongly preferred by most state mining regulators and major resource company operating standards. Safetysure has investigated incidents involving ground control, explosive materials, mobile equipment, and ventilation systems.

Construction

Construction investigation covers falls from height, structural collapse, plant and equipment incidents, electrical infrastructure, confined spaces, and excavations. Safetysure has conducted investigations on construction projects of significant scale, including port infrastructure, industrial facilities, and civil engineering works.

Manufacturing and processing

Manufacturing incidents frequently involve process plant, machinery, chemical exposure, and fire and explosion risks. Safetysure’s occupational hygiene capability supports investigations where atmospheric contaminant exposure  dusts, chemicals, gases  is a material causal factor.

Ports and logistics

Port and logistics operations combine mobile plant, crane and lifting operations, vessel interfaces, chemical handling, and traffic management. Safetysure understands the applicable legislative frameworks including maritime, stevedoring, and general WHS obligations.

Transport and warehousing

Forklift incidents, loading dock accidents, vehicle-pedestrian interactions, and racking failures are among the most frequent serious incidents in this sector. Safetysure is familiar with the NHVR regulatory framework and relevant codes of practice.

Is Safetysure’s investigation practice independently certified?

Yes. Safetysure holds triple ISO certification including ISO 9001 (quality management), ISO 45001 (occupational health and safety management), and ISO 14001 (environmental management) independently certified through SAI Global Intertek. Investigation methodology, documentation standards, and report review processes are conducted within this certified quality management framework, systematically controlled and independently audited.

This matters in serious investigation contexts because the credibility of investigation findings depends partly on the credibility of the investigation process itself. An ISO 9001-certified investigation practice can demonstrate to a regulator or a court that its methodology is documented, consistently applied, and subject to external scrutiny.

Who conducts Safetysure’s investigations?

Safetysure investigations are led by John Ninness, Director and Principal Consultant, supported by specialist consultants in occupational hygiene, psychosocial safety, and technical safety disciplines. John has more than 30 years of WHS experience spanning mining, defence, construction, manufacturing, and government sectors across Australia and internationally.

John holds a  Diploma in Occupational Health and Safety, Member of the Australian Institute of Company Directors (MAICD), and is a member of the Australian Institute of Health and Safety. He is a former Technical Committee member of Standards Australia for AS/NZS 2865 (Confined Spaces) and a University of Queensland graduate student mentor in occupational hygiene and occupational health and safety for post graduate students.

John has been engaged by government, industry, and legal counsel on investigation and advisory matters spanning workplace fatalities, major infrastructure incidents, electrical failures, and regulatory prosecutions. He holds the Chinese Government Friendship Award for contribution to mine safety in Liaoning Province.

Specialist consultants include Teddy Chen (occupational hygiene and technology) and Katie Lu (psychosocial safety), both of whom support investigations where atmospheric contamination or psychological harm is a material causal factor.

What should you do immediately after a workplace incident?

After a workplace incident: attend to injured persons and call 000 if required; do not disturb the scene except to assist injured persons or make the area safe; notify the relevant work safety regulator immediately if the notification threshold is met; identify and separate witnesses before they discuss the event; photograph the scene; notify legal counsel; and engage an independent investigator. Call Safetysure on 1300 087 888.

• Attend to injured persons and notify emergency services (000) if required
• Do not move, disturb, or clean up the incident scene except as required to assist injured persons or make the area safe
• Notify the relevant work safety regulator immediately if the incident meets the notification threshold — do not wait for internal confirmation
• Identify and retain all witnesses — do not allow witnesses to discuss the event with each other before formal interviews are conducted
• Begin photographing and documenting the scene if safe to do so, using time-stamped images
• Notify your organisation’s legal counsel and engage an independent investigator as early as possible
• Call Safetysure on 1300 087 888

Safetysure’s 24-hour response service is staffed by qualified consultants, not a call centre. When you call, you speak with someone who understands the regulatory framework, the evidentiary requirements, and the investigation methodology.

Why do organisations choose Safetysure for incident investigation?

Organisations choose Safetysure for investigation because of its independence, its multi-methodology approach within an ISO 9001-certified framework, its 30-year track record across Australian high-hazard industries, and its ability to produce WHS investigation reports that withstand regulatory and legal examination. Safetysure also provides independent review of completed investigation reports. Available 24 hours a day, nationally.

• More than 30 years of investigation experience across mining, construction, manufacturing, ports, and government
• Multi-methodology investigation capability — ICAM, fault tree analysis, barrier analysis, 5 Whys, and change analysis — within an ISO 9001-certified quality management framework, independently audited
• Independent review of completed investigation reports — assessing methodology, causal analysis depth, evidentiary adequacy, and report defensibility
• Technical capability spanning occupational hygiene, plant and equipment, electrical systems, and process safety
• Familiarity with WHS regulatory frameworks across all Australian jurisdictions, including the mining and petroleum regimes of Queensland, Western Australia, and New South Wales
• Experience preparing WHS investigation reports for regulators, boards, insurers, legal counsel, and coronial inquiry
• Ability to work within legal professional privilege arrangements established by external legal counsel
• 24-hour response availability
• Full independence — no conflicts of interest, no commercial relationships with organisations under investigation

How do you contact Safetysure for an investigation?

Call Safetysure on 1300 087 888. The 24-hour response line is staffed by qualified consultants for incident response engagements. For non-urgent enquiries, email admin@safetysure.com.au or use the contact form on this website.

Safetysure operates across Queensland, New South Wales, Victoria, Western Australia, South Australia, the Australian Capital Territory, and Commonwealth jurisdictions. Site attendance is available nationally.

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[1] Hollnagel, E. (2004). Barriers and Accident Prevention: Aldershot:Ashgate