Quick Summary
Quick Summary
- Post-employment conduct doesn’t formally affect unfair dismissal assessments, but employer credibility in the hearing absolutely does.
- You can challenge false employee evidence with documents, witnesses, and cross-examination—but never by fabricating counter-evidence.
- False statements by employers about pre-dismissal events destroy credibility and often flip the outcome of Fair Work cases.
- Contemporaneous, honest documentation from the original investigation is your strongest defence.
What happens when a former employee claims you made false statements in a Fair Work investigation? Can you challenge their evidence? The Fair Work Commission regularly hears disputes where post-employment conduct—what employers and former employees do after the dismissal—becomes the crux of an unfair dismissal claim. Understanding when you can defend against false evidence allegations is critical for every employer.
The distinction between conduct during employment (which influences dismissal fairness) and conduct after dismissal (which usually doesn’t) matters enormously. But when an employee alleges you fabricated evidence or made false statements in the investigation itself, that’s a different legal beast. Here’s what the FWC and case law tell us about defending these claims.
What Counts as Post-Employment Conduct?
Post-employment conduct is anything the employer does after the dismissal takes effect. It doesn’t form part of the “fairness” assessment under section 387 of the Fair Work Act 2009 (Cth). The FWC only examines whether the dismissal was harsh, unjust, or unreasonable at the time it happened.
However, post-employment conduct can become relevant in limited circumstances:
- Credibility assessment: If an employer makes false statements during the unfair dismissal hearing, the Commission may reduce weight on their evidence when deciding the case.
- Conduct after appeal: If an employer breaches orders or acts improperly during the Fair Work proceedings, it can affect the outcome.
- Witness integrity: False claims made by an employer about investigation findings reduce the Commission’s confidence in their overall narrative.
This is where many employers stumble. The FWC doesn’t formally “punish” false post-employment conduct, but it absolutely considers it when weighing credibility. A credible employer wins cases; a dishonest one loses them—even if the original dismissal was procedurally sound.
The Legal Framework: Section 387 and Beyond
Section 387 of the Fair Work Act defines unfair dismissal as dismissal that is harsh, unjust, or unreasonable. The FWC applies a three-step test:
- Was there a valid reason? Misconduct, performance, redundancy, etc.
- Was the employee aware of the reason and given a fair go? Procedural fairness.
- Was the dismissal proportionate? Could a fair employer in the circumstances have dismissed?
Post-employment conduct doesn’t feed into steps 1–3. But if an employer lies during the hearing about what happened before dismissal, the Commission notes it and reassesses whether the employer’s version of the “reason” and “fair go” is credible.
The key case here is Fair Work Commission decisions on credibility and false evidence. Commissioners have repeatedly held that an employer who manufactures or misrepresents evidence during the unfair dismissal claim undermines their own case.
Can You Challenge an Employee’s False Evidence?
Yes—you have every right to challenge false employee evidence. The FWC expects vigorous testing of conflicting accounts. The difference is in how you do it:
What employers can do:
- Cross-examine the employee or their witness on inconsistencies.
- Present documentary evidence (emails, messages, timesheets, CCTV) that contradicts their claims.
- Call your own witnesses to dispute the employee’s version.
- Point out logical gaps in their narrative.
- Submit written statements from the investigation file showing what was actually said.
What employers must avoid:
- Fabricating new evidence specifically for the hearing.
- Coaching witnesses to change their story.
- Altering investigation notes after the dismissal.
- Making false assertions about what the employee said in the investigation.
- Submitting backdated emails or documents.
The FWC sees through these tactics. Investigators and Commissioners have forensic-level detail; they know when a document has been altered or a timeline doesn’t add up. And the reputational cost is immediate: lose your credibility, and the Commission will question everything else you say.
⚠️ Critical: Credibility in Fair Work Proceedings
One false statement about investigation findings or employee admissions can unravel an otherwise defensible dismissal. The Fair Work Commission prioritises honest, documented accounts over narrative management.
Key Takeaways
Key Takeaways for Employers
- ✓Document all investigation meetings contemporaneously with a witness present; don’t reconstruct notes later.
- ✓Use original communications (emails, messages, recordings) whenever possible; they’re stronger than recollections.
- ✓Present evidence honestly and admit if you cannot recall details precisely; the FWC values consistency over embellishment.
- ✓Never alter investigation notes after dismissal; any appearance of tampering destroys credibility.
- ✓If you must correct a document, date the correction clearly and explain why.
- ✓Involve a neutral observer (HR manager or external investigator) in all disciplinary investigations to corroborate your account.
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Real-World Example: The Credibility Test
Consider a common scenario: an employer dismisses an employee for breaching a confidentiality clause. In the investigation meeting, the employee denies sharing information. The employer documents this denial. Later, at the Fair Work hearing, the employer claims the employee “admitted” the breach during the investigation—but the notes don’t support this.
The FWC has two options:
- The employer genuinely misremembered (credibility damage, but salvageable if the rest of the case is strong).
- The employer is lying (credibility destroyed; the Commission suspects the entire dismissal narrative is unreliable).
Many employers lose unfair dismissal cases not because the dismissal wasn’t justified, but because they lost the credibility battle. The Fair Work Commission prefers a consistent, honest employer over a technically correct one who shades the truth.
How to Protect Yourself: Documentation Best Practices
Prevention is always better than defence. Here’s how to stay ahead of false evidence allegations:
1. Document everything contemporaneously. Write investigation notes during or immediately after meetings. Don’t reconstruct them weeks later. The FWC can tell the difference.
2. Use verbatim quotes sparingly. If you’re unsure what someone said, write “Employee stated they did not understand the policy” rather than using quotation marks around uncertain language.
3. Involve witnesses. Conduct investigations with a second person present (ideally a neutral observer like an HR manager or external investigator). Two sets of notes beat one.
4. Keep emails, messages, and recordings. Original communications (Slack, email, text, recorded call) are gold in a Fair Work hearing. They speak for themselves.
5. Never alter or “clean up” documents after dismissal. If you need to correct an obvious typo in a contemporaneous note, do it carefully and date the correction. Don’t hide changes.
6. Be honest about what you don’t remember. Commissioners respect a witness who says “I don’t recall the exact words, but the notes reflect my recollection” more than one who invents detail.
What the Fair Work Commission Values Most
The FWC is pragmatic. They don’t expect perfect investigations. They expect honest ones. Employers who:
- Follow clear investigation procedures
- Give the employee a fair hearing to respond
- Document their process transparently
- Admit mistakes if procedures weren’t perfect
- Present evidence honestly, without embellishment
…win cases at far higher rates than those who try to manage their narrative retroactively.
Post-employment conduct matters less than pre-dismissal conduct. But how you conduct yourself in a Fair Work case—the honesty, the documentation, the consistency—determines the outcome. One false statement in a hearing can unravel a technically defensible dismissal.
The golden rule: if your dismissal was fair, your evidence will show it without embellishment. If you’re relying on post-hearing fabrications, the case was probably unfair to begin with.
Key Takeaway for Australian Employers
You absolutely can challenge false employee evidence in Fair Work cases. But you must do it with documentary proof, witness corroboration, and logical consistency. Any appearance that you’ve manufactured or misrepresented evidence will destroy your credibility—and likely your case. Comply with Fair Work requirements from day one, document thoroughly, and present the truth plainly. The Fair Work Commission respects that approach.
If you’re facing an unfair dismissal claim or planning a complex disciplinary investigation, the Fair Work Centre’s direct advice sessions can help you navigate the procedural and evidentiary landmines. You can speak to an actual employment lawyer—not a call centre—about your specific situation.
Frequently Asked Questions
Generally, no. Post-employment conduct (anything the employer does after dismissal) is not assessed under section 387 of the Fair Work Act. The Fair Work Commission only examines whether the dismissal was harsh, unjust, or unreasonable at the time it happened. However, if an employer makes false statements during the unfair dismissal hearing about pre-dismissal events, it damages their credibility and can swing the outcome.
Absolutely. You can cross-examine the employee, present contradictory documentary evidence (emails, messages, investigation notes), call your own witnesses, and point out inconsistencies. What you cannot do is fabricate evidence or misrepresent what was said in the original investigation. The Fair Work Commission will detect dishonesty, and it will destroy your case credibility.
Minor misstatements that don’t affect the core narrative are usually forgiven, especially if supported by documentation. However, material false claims—about what was said in the investigation, what the employee allegedly admitted, or key facts about the dismissal—will be treated as credibility damage. The Commission may doubt your other evidence as a result. Always be honest and admit if you cannot recall something precisely.
Use contemporaneous documentation: emails, investigation notes from the meeting, witness statements, CCTV, timesheets, or recorded communications. Avoid reconstructed notes; they carry less weight. Present evidence calmly and let the documents speak for themselves. The FWC values consistency and supporting material, not rhetoric.
Yes, absolutely. Conduct investigations with a neutral observer (HR manager, external HR consultant, or independent investigator) present. Two sets of contemporaneous notes are far more credible than one. This also protects you against allegations that you fabricated the investigation or misrepresented what the employee said.
Never alter notes after dismissal without clear dating of corrections. If you spot an obvious typo immediately after the meeting, you can correct it with a dated note explaining why. But reconstructing or heavily editing notes weeks or months later—especially before a Fair Work hearing—will be viewed as suspect. The Fair Work Commission can identify when documents have been altered.
Honesty, consistency, and transparency. Commissioners respect employers who follow clear procedures, give employees a fair hearing, document their process openly, and present evidence without embellishment. Employers who try to manage their narrative retroactively or manufacture supporting evidence lose credibility immediately. A simple, truthful account supported by genuine documentation beats a polished but dubious one.
Yes—dishonesty or credibility issues during the investigation can justify dismissal for misconduct. However, you must prove it with evidence, and you must have given the employee a fair chance to respond to the allegation of dishonesty. Don’t assume the Commission will simply believe you; bring documents, witnesses, or recordings that show the false statement clearly.
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