Workplace Investigations

Confidentiality protects the interests of the persons involved in the investigation as well as the integrity of the investigation. Before providing information as part of the investigation, employers should direct the complainant, respondent or witnesses to sign confidentiality agreements. This agreement should direct the person to refrain from discussing the investigation or matters that are the subject of the investigation with any person other than the investigator.

It is also best practice for participants in the investigation to be directed not to victimise (threaten or subject to any detriment) any persons who are witnesses to or are otherwise involved in the investigation.

After an investigation, employers should write to the complainant, respondent and any witnesses reminding them of their ongoing confidentiality obligations.

Concerning a workplace investigation, there is no specific legislation in force at the moment regarding confidentiality obligations. All normal legal confidentiality obligations (eg, obligations outlined in the Trade Secrets Act (595/2018)), and if using an external investigator, the confidentiality obligations outlined in the agreement between the employer and the external investigator, apply. Attorneys-at-law always have strict confidentiality obligations as per the Advocates Act (496/1958).

There are legal requirements related to the time you must keep certain employee records in Australia, such as pay slips and time sheets. However, there are no laws concerning disciplinary records.

Employers can rely on previous misconduct to justify an employee’s termination of employment where it can be shown it is part of a course of conduct. Accordingly, if complaints have been substantiated, and disciplinary action has been taken, these records should be maintained. However, if a significant period has elapsed since the misconduct, an employer should carefully consider whether it is appropriate to rely on this past behaviour to justify future disciplinary action for similar conduct.

Please see question 7. The outcome of the investigation involving personal data may be retained only for as long as is necessary considering the purposes of the processing. In general, the retention of investigation-related data may be necessary while the investigation is still ongoing and even then the requirements of data minimization and accuracy should be considered. The data concerning the outcome of an investigation should be registered to the employee's record merely to the extent necessary in light of the employment relationship or potential disciplinary measures. In this respect, the applicable retention time depends on labour law-related rights and limitations, considering eg, the applicable periods for filing a suit.