When should you appoint an external workplace investigator?

Five checks before choosing an investigator

1. Can the proposed investigator approach the matter impartially?

Map their relationships with the complainant, respondent and likely witnesses. Have they advised on the disputed events, witnessed them, supervised a participant or expressed a view about the outcome? Consider reporting lines and commercial relationships as well as personal connections.

Legal Aid NSW’s investigation guidance explains that an independent investigator need not be external: an internal investigator should be uninvolved and unbiased. Conversely, an external appointment still needs a conflict check and protection from pressure to reach a preferred result.

2. Does the matter exceed your team’s capability?

A defined incident may involve a small number of accounts and readily available records. Allegations spanning several teams or months may require a chronology, separate allegation statements and careful testing of conflicting evidence. Complaints involving a senior leader or HR may also make ordinary reporting arrangements unsuitable.

Identify the expertise actually needed. A matter involving sexual harassment, fraud, discrimination or possible criminal conduct may require specialist investigation skills and separate legal advice. An investigator’s appointment does not resolve every employment, reporting or regulatory question.

3. Is there enough time and practical capacity?

Assess capacity for the whole assignment: planning, arranging interviews, examining records, follow-up enquiries, responses and report writing. A manager who can conduct two interviews next week may still lack the time to complete the remaining work.

Ask who will cover their normal responsibilities and handle participant support. If capacity is uncertain, identify the additional resources before delay becomes the default. Agree realistic milestones rather than a completion date that assumes no new information will emerge.

4. Can sensitive information be managed appropriately?

Consider who can access files, schedule meetings and receive updates. In a small workplace, even calendar invitations may reveal more than intended. Check secure transfer and storage arrangements, agreed recipients and how records will be retained.

Explain the limits of confidentiality. Some information will need to be put to participants so it can be examined fairly. Do not promise complete secrecy or anonymity that the process cannot deliver.

5. Will the work produce a useful basis for decisions?

The report should connect the allegations, relevant evidence, responses and reasons for each finding. Confirm whether the investigator will also assess conduct against specified policies or make recommendations. The employer remains responsible for decisions that follow.

If the concern includes bullying or another health and safety risk, allocate responsibility for managing that risk while enquiries proceed. Safe Work Australia’s bullying guidance explains the health and safety risks involved. Waiting for a report should not become a reason to leave immediate risks unaddressed.

Compare the three investigation routes

Internal investigation

This may suit a matter with manageable scope where an uninvolved employee has the skills, authority and time to investigate. Document why they are suitable, who will support participants and who will make subsequent decisions. Review the arrangement if new allegations or conflicts emerge.

Supported internal investigation

This may suit an organisation with an appropriate internal investigator who needs help with particular stages. Synergy’s internal investigation support can be discussed for scoping, planning, enquiries or report review. Specify which tasks stay with the employer and which are assigned to the adviser. A later review cannot necessarily repair an earlier process defect.

Full external investigation

This may suit a matter where internal conflicts, complexity or resource constraints make an internal appointment difficult. Agree the investigator’s access to information and participants, escalation route and reporting arrangements. External status alone does not establish impartiality, confer compulsory powers or guarantee a legally safe outcome.

Before commissioning any formal investigation, consider whether another response is appropriate. A clarified concern, early management response or voluntary mediation may fit some circumstances. Assess seriousness, safety, power differences and any required procedures before choosing that route.

Six questions before appointment

1. Who will do the work? Ask about the proposed investigator’s relevant experience and availability, and who would undertake any review. Read the individual team profiles.
2. What conflicts need to be disclosed? Check prior work, relationships and involvement in the events. Agree how a newly identified conflict will be handled.
3. What is within scope? Identify the allegations, relevant period, policies, exclusions and authority to approve changes.
4. How will communication work? Name the commissioning contact, participant-support contact and recipients of progress updates. Agree how delays or urgent risks will be raised.
5. What report will be delivered? Confirm findings, reasons, evidence references, any policy analysis, permitted recipients and the response process. Distinguish fact-finding from later employment decisions.
6. How will fees be controlled? Ask what the estimate assumes, what expenses or taxes apply, and when approval is required for additional work.

Record the decision and responsibilities

A short commissioning record helps turn this assessment into an agreed plan. Record the chosen route and reasons, conflict checks, scope, investigator, decision-maker, information arrangements, support contacts, budget assumptions and first review date.

Revisit that record when circumstances change. A narrow complaint may broaden, an intended investigator may become a witness, or a delay may create a new workplace risk. Changing the approach can be appropriate when the reasons are documented and communicated carefully.