Defensible transcription for every
regulated investigation.
Nguma produces chain-of-custody compliant transcripts for workplace investigations, disciplinary and misconduct hearings, whistleblower interviews, insurance examinations, police records of interview, and clinical and care investigations. Procedural fairness built in. Australian-hosted. Matter-level access controls. No model training on investigation content.
Investigations succeed or fail on the quality of their record.
An investigation that is procedurally sound but poorly documented is almost as difficult to defend as one that was not conducted at all. A Nguma transcript gives you a contemporaneous, verbatim record that is significantly more defensible than notes written from memory after the fact.
Procedural fairness requires an accurate record
Under the Fair Work Act 2009 and its state equivalents, procedural fairness in workplace investigations requires that the subject of the investigation has a genuine opportunity to respond to allegations. An accurate, contemporaneous transcript of every interview is the most defensible evidence that this opportunity was provided and how it was used.
Credibility challenges start with the record
When an investigation finding is challenged (in the Fair Work Commission, an integrity body, a civil proceeding, or an internal appeal) the first question is whether what the investigator says happened is what the record shows. A verbatim transcript with chain-of-custody log is substantially harder to challenge than summary notes that were produced hours or days after the interview.
Sensitive content requires the highest confidentiality
Investigation interviews are among the most sensitive recordings an organisation produces: allegations of misconduct, protected disclosures, trauma-related accounts, and personal health information. Using a general-purpose AI tool that processes content offshore or trains on customer data creates confidentiality exposure that is incompatible with the duty of care owed to participants.
Every investigation that needs a defensible record.
Output type and access controls are configured per matter. The chain-of-custody compliance posture is the same across all of them.
Workplace investigations
Bullying, harassment, and grievance interviews under the Fair Work Act 2009 and state equivalents. Procedural fairness documentation. Named investigator and respondent attribution throughout.
Fair Work Act 2009Disciplinary and misconduct hearings
Internal investigations and Code of Conduct reviews. Restricted access; content limited to named investigators and HR leads. Full attribution of questions and responses. Export to your investigation report template.
Code of Conduct · HR governanceWhistleblower interviews
Public Interest Disclosure scheme interviews under the Public Interest Disclosure Act 2013 (Cth) and state equivalents. High confidentiality controls. Disclosed person identity protected. Access restricted to authorised investigators only.
PID Act 2013 · State PID ActsPolice records of interview
Caution-compliant, time-stamped to evidentiary standard. Speaker attribution between interviewing officer and interviewee. Chain-of-custody log from audio capture to certified transcript. Suitable for use in criminal proceedings.
Evidence Acts · Caution complianceInsurance examinations under oath
Examinations under oath (EUOs) and factual investigations requiring defensible transcripts. Verbatim with full attribution. Human-certified against original audio. Chain-of-custody available for evidentiary use.
EUO · Factual investigationClinical and care investigations
NDIS Commission, Aged Care Quality and Safety Commission, and AHPRA matters. Sensitive clinical content with strict access controls. Privacy Act handling for health information. Output to regulator reporting formats on request.
NDIS · Aged Care · AHPRAIntegrity body examinations
NACC, ICAC, IBAC, CCC, Ombudsman, and Inspector-General examinations. Structured transcript with examiner and witness attribution. Handling of restricted or protected content. Turnaround to match integrity body publication timelines.
NACC · ICAC · IBAC · CCCProfessional standards investigations
Legal, medical, financial, and other professional standards bodies. Disciplinary hearings and conduct investigations where the transcript forms part of the formal proceeding record. Verbatim or structured to the body’s requirements.
Professional conduct · DisciplinaryRegulator audit interviews
ASQA, AHPRA, APRA, ATO examination interviews, and equivalent regulatory examinations requiring a formal record. Structured transcript with attributions. Export to regulator documentation formats.
ASQA · AHPRA · APRA · ATOThe frameworks your investigation record must satisfy.
Investigation transcripts carry obligations under employment law, privacy law, evidence law, and sector-specific regulation. Nguma is built to address each of them.
Procedural fairness in workplace investigations
Procedural fairness requires that the subject of an investigation has a genuine opportunity to respond to allegations and that the response is accurately recorded. A verbatim transcript is the most defensible evidence of this. Nguma produces a contemporaneous, speaker-attributed record from the first word of the interview, eliminating the risk of a disputed account of what was said.
Whistleblower confidentiality obligations
The PID Act creates strict confidentiality obligations for information relating to public interest disclosures. The identity of a discloser and the content of their disclosure must be handled with the highest level of protection. Nguma’s named-user access controls, Australian hosting, and no-model-training guarantee provide the technical architecture to support these obligations in practice.
Privacy obligations across the investigation
Investigation interviews collect sensitive personal information: allegations, health disclosures, financial information, and information about third parties. APP 3 (consent), APP 6 (purpose limitation), APP 8 (cross-border disclosure), and APP 11 (data security) all apply. For health information collected in clinical investigations, the enhanced obligations under Australian Privacy Principle 3.3 also apply.
Evidentiary standard for formal proceedings
Where investigation transcripts are relied upon in formal proceedings (Fair Work Commission hearings, civil litigation, criminal proceedings, or regulatory examinations) the chain-of-custody, accuracy, and certification of the transcript may be examined. Nguma’s chain-of-custody log, word-level confidence ratings, and human certification process are designed to meet evidentiary requirements across Australian jurisdictions.
Sensitive disclosures stay within the investigation
Investigation content (allegations of misconduct, protected disclosures, trauma accounts, and clinical findings) is among the most sensitive material any organisation generates. Nguma contractually guarantees that this content is never used to train AI models or improve the Nguma service. For investigation work, this is not an optional setting; it is a hard prohibition in standard terms.
Investigation content held in Australia
All audio, transcripts and records are processed and stored in Australia, with the application database and records held in AWS’s Sydney region and speech-to-text processed in Australia. No customer data is transferred offshore for storage. For whistleblower and clinical investigation content in particular, the inability of the platform to route data offshore regardless of configuration is a critical assurance.
A contemporaneous transcript. Not notes from memory.
The most common point of vulnerability in investigation findings is not what happened in the interview. It is how the record of it was produced.
The failure modes that end investigations
- Notes written from memory after the interview, not during it
- No record of who said what, exactly, in what order
- Disputed paraphrasing in summary notes provided as evidence
- No audit trail showing when the record was created or by whom
- Recording processed by an AI tool offshore, creating APP 8 exposure
- Notes stored in personal drives without access controls
A record that holds up under scrutiny
- Verbatim, speaker-attributed transcript produced from the audio in real time
- Every word attributable to a named speaker with timestamp
- Human reviewer checks the transcript against the audio before sign-off
- Chain-of-custody log from upload to certified transcript
- All content processed and stored in Australia
- Named-user access only; no broad organisational visibility
Every investigation deserves a record that holds up.
We configure the matter, you run the interview. A certified transcript is ready the same day.
From interview to certified transcript in four steps.
Nguma connects to your existing meeting infrastructure or accepts audio upload after in-person interviews. Each investigation is configured as a separate matter with its own access controls.
Configure the matter
Set the output specification, name the authorised investigators, configure access controls, and set retention policy. For whistleblower matters, configure the discloser identity protection settings. Each investigation is a separate, isolated matter.
Capture the interview
Connect Nguma to your Teams, Zoom, or Meet session, or upload the audio after an in-person interview. All audio is processed in Australia on receipt. Consent is captured and logged at the start of each session.
Review and certify
The investigator or a designated reviewer checks the transcript against the audio. The editor flags low-confidence passages and plays the audio in context. Every edit is captured in the audit trail. The reviewer certifies the final transcript as accurate.
Export the record
Certified transcripts export to PDF, Word, or your case management system. The complete chain-of-custody log is preserved and available for proceedings. Restricted and redacted versions can be produced from the same source for different disclosure purposes.
What your legal team and regulators will verify.
Questions from investigators and legal counsel.
Is a Nguma transcript admissible in Fair Work Commission proceedings?
Yes. Nguma produces a verbatim, speaker-attributed transcript from the source audio, reviewed by a human against the audio before certification, with a chain-of-custody log from upload to final transcript. This contemporaneous record is significantly more defensible in Fair Work Commission proceedings than investigator notes written from memory after the interview. Final admissibility is always a matter for the Commission, but Nguma is designed to meet the evidentiary standard expected of a certified transcript.
How are whistleblower identities protected?
Whistleblower matters are configured as isolated matters with named-user access only. The discloser’s identity can be protected in the access configuration so that only the authorised investigator, not other parties to the matter, can access identifying information. All content is processed in Australia and never used to train AI models. The audit trail documents every access event so any inadvertent disclosure can be identified and addressed immediately.
Can access to investigation transcripts be restricted to named investigators only?
Yes. Each matter is configured with a named-user access list. Only the users you explicitly name can access the audio, draft, and certified transcript for that matter. There is no broad organisational visibility, no automatic sharing, and no access for Nguma staff outside contracted support arrangements. Every access event is logged with the user’s identity and timestamp.
Is investigation content used to train AI models?
No. Nguma contractually guarantees that customer audio, transcripts, and metadata are never used to train AI models or improve the Nguma service. This applies to investigation content at every tier and is a hard contractual prohibition in standard terms, not a setting that needs to be enabled or an enterprise-only protection.
Can a restricted version and a full version of a transcript be produced from the same matter?
Yes. Nguma can produce a restricted version (with identified content redacted or pseudonymised) and a full version from the same source audio and transcript. This is useful where a transcript must be disclosed to the subject of an investigation but portions identifying a protected witness or discloser must be withheld. Access to each version is controlled independently with its own named-user list.
How does Nguma handle participant requests for access to their transcript under the Privacy Act?
Under APP 12, individuals have a right to access personal information held about them, subject to exemptions that include where disclosure would unreasonably affect another individual’s privacy or prejudice an ongoing investigation. Nguma’s matter-level access controls and audit trail make it straightforward to produce a version of a transcript that addresses an access request while protecting other participants’ information. Your legal team should advise on the applicable exemptions for the specific matter.
Get a transcription brief for your investigation.
Tell us the investigation type, participants, and access requirements. We will provide a custom specification and indicative pricing within one business day.