In today’s digital world, social media is part of daily life. But when personal opinions spill online, especially under the cloak of anonymity, the consequences can extend far beyond a Twitter feed. One case that highlighted this reality was Comcare v Banerji (2019)—a High Court decision that redefined how far free speech protections go in the workplace.
Background
Michaela Banerji worked for the Australian Public Service (APS). Like many of us, she took to social media to express her views. Using a pseudonymous Twitter account, she published more than 9,000 tweets over several years, many of them sharply critical of government immigration policies, ministers, and senior officials.
Banerji believed her identity was protected by the anonymity of her account. But when her employer discovered the posts, they concluded she had breached the APS Code of Conduct. The issue? Even though she wasn’t tweeting under her real name, her posts had the potential to damage public confidence in the impartiality of the APS.
Banerji was dismissed from her role. She then lodged a claim with Comcare, arguing her dismissal had caused her psychological injury.
The claim sparked a legal battle that went all the way to the High Court.
The Case
Banerji argued that her dismissal breached the implied constitutional freedom of political communication. She claimed that Australians had a right to engage in political debate, and that her tweets—although critical—fell within that protected space.
The Commonwealth, however, argued that APS employees are bound by obligations of impartiality, confidentiality, and trust. Her conduct, they said, undermined those obligations and justified termination.
The High Court Findings
The High Court unanimously rejected Banerji’s arguments. It found that:
- The implied freedom of political communication is not a personal right, but a limit on legislative power.
- The APS Code of Conduct, which restricts employees from making public political commentary that could damage confidence in the public service, was legally valid.
- Banerji’s conduct was inconsistent with her role as an APS employee, and dismissal was therefore lawful.
The Outcome
The Court’s decision upheld Banerji’s dismissal. It reinforced that:
- Anonymity is not protection – even under a pseudonym, posts can be traced back and carry workplace consequences.
- Off-duty conduct can impact employment – what you post outside work hours can still breach workplace codes.
- Employers’ interests come first – where social media use conflicts with organisational trust or reputation, dismissal can be justified.
Why it matters
The Banerji case was a game changer for Australian workplaces. It drew a clear line in the sand: freedom of expression online is not limitless when it undermines an employer’s legitimate business interests.
For organisations, the case highlights the importance of:
- Robust social media policies that set expectations clearly.
- Training and reminders for employees on the risks of online conduct.
- Active management of misconduct risks related to digital platforms.
For employees, the takeaway is simple: “private” or anonymous accounts aren’t immune. Online behaviour can follow you back into the workplace.
WorkRight Tip: People. Purpose. Progress.
- People: Protect your workforce with clear boundaries around digital conduct—so no one is caught off guard.
- Purpose: Ensure your policies align with your organisation’s values, balancing fairness with professional responsibility.
- Progress: Social media evolves quickly—review and refresh your policies regularly to keep up.
The Comcare v Banerji case reminds us that the line between personal expression and professional responsibility is thinner than ever. In an era where every post, like, and share leaves a footprint, employers and employees alike need to tread carefully.
The risks of getting it wrong
Managing social media in the workplace is a delicate balance. Employers who overstep without a clear and fair process may face costly claims of unfair dismissal, adverse action, or discrimination. On the other hand, ignoring inappropriate online conduct can result in serious reputational damage, loss of public trust, and a toxic workplace culture. Getting social media management wrong doesn’t just affect the individual—it can leave lasting scars on the organisation itself.
What you can – and can’t – regulate
Social media policies are powerful, but they’re not unlimited. Employers can set expectations around conduct that:
- Impacts the workplace directly – such as bullying, harassment, or threats made online.
- Damages the organisation’s reputation – including offensive posts that can be linked back to the business.
- Breaches confidentiality or trust – for example, sharing sensitive company or client information.
- Conflicts with employee duties – like posts that undermine impartiality (as in Banerji’s case).
However, employers can’t regulate everything. Employees generally retain the right to:
- Express lawful personal opinions that don’t damage the business or breach workplace obligations.
- Engage in private, non-work-related activity that has no connection to their role or the organisation.
- Exercise workplace rights under the Fair Work Act, such as raising complaints or participating in union activity.
The key is balance: policies should protect the organisation without overreaching into employees’ private lives. Overly broad or heavy-handed restrictions risk being struck down as unreasonable, or worse, challenged as adverse action.
If you want to read the full case transacts, then click the links below.
Comcare v Banerji [2019] HCA 237
