Information for principal officers

Mandatory notifications are an important ingredient in the Victorian public sector's shared responsibility and commitment to identify and address integrity vulnerabilities. They help to prevent corruption and improve the integrity of the public sector.

Mandatory notifications of public sector corruption were introduced in December 2016. This obligation is set out in section 57 of the Independent Broad-based Anti-corruption Commission Act 2011 (the Act).

As the head of your department, agency or council (the ‘relevant principal officer’), you are obligated to notify IBAC when you have reasonable grounds to suspect corruption is occurring or has occurred in your workplace. 

What you must notify IBAC about

You must notify IBAC of all suspected corrupt conduct. There is no legislative obligation for relevant principal officers to search out corrupt conduct, only report it when suspected. To meet the threshold for notification to IBAC, the conduct must:

  1. Be corrupt conduct as defined in section 4 of the Act; and
  2. Be an indictable offence or a prescribed common-law offence committed in Victoria; and
  3. Lead a reasonable person to suspect that corrupt conduct has occurred or is occurring (reasonable suspicion).
  • Directions for making mandatory notifications (decision making flowchart)
    Directions for making mandatory notifications (decision making flowchart)


  • Download the mandatory notification form to make a notification. Use additional Part B and Part C forms if required. Submit the form(s) by:


    For urgent matters, call IBAC on 1300 735 135 (10 am – 3 pm, Monday – Friday excluding public holidays).


    Attention: Manager Assessments and Review
    IBAC Commissioner
    GPO Box 24234
    Melbourne VIC 3001

  • IBAC will acknowledge all notifications in writing. IBAC will assess the notification and will either:

    • Dismiss it (for example where there is not enough information available); or
    • Refer it back to the notifying agency or one of a number of prescribed bodies that may be considered more appropriate to investigate the matter (i.e. the Victorian Ombudsman, if for example, the alleged conduct does not meet IBAC's threshold for investigation); or
    • Commence a preliminary inquiry or full investigation into the matter (where we assess that serious or systemic corruption may have occurred or is occurring).  The IBAC Act requires us to prioritise investigations of serious or systemic matters. 

    Relevant principal officers will be notified in writing of the outcome of IBAC's assessment and advised of any further steps that need to be taken. 

    Relevant principal officers should contact IBAC if urgent action is required before or during the assessment.

IBAC recognises that sometimes it can be difficult to discern what constitutes corrupt conduct or at what point reasonable suspicion is formed. Relevant principal officers will have to exercise their judgement, and may need to seek independent legal advice before notifying IBAC.

Be careful to maintain confidentiality, do not approach anyone you suspect of wrongdoing, and do not commence an internal investigation before notifying IBAC.

If in doubt, submit a notification to IBAC for assessment.

Misconduct that does not meet the mandatory notification threshold described above does not need to be reported to IBAC (ie low level misconduct or performance related issues which should be handled internally as disciplinary or staff development matters).