Workplace Investigations: Your Rights When HR Comes Knocking

When HR Says "We Need to Talk"

You arrive at work. Your manager asks you to step into a meeting room. Sitting there is someone from HR, possibly an external investigator. They tell you that a complaint has been made. They have some questions. They may tell you what the complaint is about, or they may be vague. They hand you a document acknowledging that the conversation is confidential. And your day — possibly your career — takes a sharp turn.

Workplace investigations are increasingly common in Canadian workplaces. Driven by legislative obligations under the Occupational Health and Safety Act (OHSA), the Ontario Human Rights Code, and evolving case law around employer liability, organizations investigate everything from harassment complaints to policy violations to allegations of fraud.

But for the person being investigated — whether they are the complainant, the respondent, or a witness — the experience is often confusing, stressful, and opaque. Here is what you need to know about your rights.

Why Investigations Happen: The Legal Obligations

Ontario employers have multiple legal obligations that require workplace investigations:

OHSA harassment obligations. Since 2016, Ontario's Occupational Health and Safety Act, as amended by Bill 132, the Sexual Violence and Harassment Action Plan Act, requires employers to investigate all complaints of workplace harassment. The investigation must be "appropriate in the circumstances" — language that gives the Ministry of Labour enforcement discretion but has been interpreted to require a thorough, impartial process.

Human Rights Code obligations. Under the Ontario Human Rights Code, employers can be held vicariously liable for discrimination and harassment committed by employees. The Supreme Court of Canada confirmed in Robichaud v. Canada (Treasury Board), [1987] 2 SCR 84, that employers are responsible for maintaining a discrimination-free workplace. Conducting prompt, thorough investigations is a key component of that obligation.

Common law duty of care. Employers have a common law duty to provide a safe workplace. Failing to investigate complaints of misconduct, violence, or harassment can expose the employer to negligence claims — particularly if the failure to investigate results in further harm to the complainant or other employees.

Just cause investigations. Before terminating an employee for cause, the employer should — and often must — conduct a thorough investigation of the alleged misconduct. Courts routinely examine the adequacy of the employer's investigation when assessing just cause defences. A termination based on an inadequate or biased investigation is more likely to fail.

Your Rights as a Respondent

If you are the person accused of misconduct, your rights in a workplace investigation are real but limited. Canadian workplace investigations are not criminal proceedings. You do not have a right to remain silent. You do not have a constitutional right to counsel during the interview. But you do have important protections.

Right to know the allegations. You are entitled to know the substance of the allegations against you in sufficient detail to provide a meaningful response. An investigator who refuses to tell you what you are accused of, or who provides only vague descriptions of the complaint, is not conducting a fair investigation. In Piresferreira v. Ayotte, 2010 ONCA 384, the Ontario Court of Appeal emphasized the importance of procedural fairness in employment-related proceedings.

Right to respond. You must be given an opportunity to respond to the allegations and to provide your version of events. An investigation that reaches conclusions without interviewing the respondent is procedurally deficient. In Casemore v. Workplace Safety and Insurance Board, 2015 CanLII 75672 (ON LRB), the Ontario Labour Relations Board found that a superficial investigation that failed to interview key witnesses did not meet the statutory standard.

Right to be treated with procedural fairness. While workplace investigations are not bound by the same procedural requirements as courts or administrative tribunals, they must be conducted with a degree of fairness. This includes impartiality on the part of the investigator, reasonable notice of interviews, and an opportunity to provide evidence.

Right to confidentiality. Investigations should be conducted confidentially to protect the interests of all parties. This means the employer should not disclose the investigation or its findings more broadly than necessary. However, the duty of confidentiality also applies to you — you may be asked not to discuss the investigation with colleagues, and violating that direction can have consequences.

Right to union representation. For unionized employees, the right to union representation during investigative interviews is well-established. The union's right to be present extends to any meeting where disciplinary action may result. For non-unionized employees, there is no general right to have a lawyer present during a workplace investigation interview, although some employers permit it.

Your Rights as a Complainant

If you are the person who made the complaint, you also have important rights:

Right to have your complaint investigated. Under OHSA, the employer is obligated to investigate every harassment complaint. They cannot ignore it, dismiss it without investigation, or conduct only a cursory review. The investigation must be appropriate in the circumstances.

Right to be informed of the outcome. Under OHSA, the employer must inform both the complainant and the respondent of the results of the investigation and any corrective action taken. This right was added by Bill 132 in 2016 and represents a significant improvement over prior law, which did not require disclosure of results.

Right to be free from reprisal. Under both OHSA (section 50) and the Human Rights Code (section 8), employers are prohibited from retaliating against employees who make complaints, participate in investigations, or exercise their statutory rights. Reprisal includes termination, demotion, discipline, suspension, or any other penalty.

The reprisal protection is independent of the outcome of the investigation. Even if the complaint is not substantiated, the employer cannot retaliate against the employee for having made it in good faith.

What Makes an Investigation "Adequate"

Courts and tribunals evaluate the adequacy of workplace investigations based on several factors:

1. Timeliness. The investigation should be commenced promptly after the complaint is received. Unreasonable delays undermine the fairness and reliability of the process.

2. Impartiality. The investigator must be free from bias and conflicts of interest. An investigation conducted by the respondent's direct supervisor, or by someone with a personal relationship with either party, is suspect.

3. Thoroughness. The investigation should include interviews with the complainant, the respondent, and relevant witnesses. Documentary evidence should be collected and reviewed. The investigator should ask probing questions, not simply record statements.

4. Procedural fairness. Both parties should have the opportunity to present their versions of events and to respond to adverse evidence. The respondent should know the substance of the allegations against them.

5. Written findings. The investigation should result in written findings of fact and conclusions, based on the evidence gathered. The findings should identify the standard of proof applied (typically the balance of probabilities) and explain the reasoning.

6. Confidentiality. The investigation should be conducted with appropriate confidentiality, and information should be disclosed only as necessary.

An investigation that is rushed, biased, superficial, or procedurally unfair is not just bad practice — it exposes the employer to legal liability. The employer may face human rights complaints, OHSA penalties, wrongful dismissal claims, or bad faith damages — all arising from the inadequacy of the investigation itself.

The External Investigator: Independent or Not?

Many employers retain external investigators — typically lawyers or HR consultants — to conduct workplace investigations. The theory is that external investigators bring objectivity and expertise that internal HR may lack.

In practice, the independence of external investigators varies. The investigator is retained and paid by the employer. The employer defines the scope of the investigation. The employer receives the final report. The investigator has a commercial interest in maintaining the employer as a client.

None of this means external investigations are inherently biased. Many external investigators conduct thorough, fair, and impartial investigations. But the structural incentives are worth understanding, particularly if you are the respondent. The investigator is not your lawyer. They are not neutral in the way a judge is neutral. They are a professional retained by your employer to answer a specific question.

Can Investigation Results Be Used to Fire You?

Yes. If the investigation concludes that you engaged in misconduct, the employer can use those findings to support disciplinary action — including termination for cause.

However, the investigation findings are not the final word. If you are terminated for cause based on investigation findings and you challenge the termination in court, the court will conduct its own assessment of whether just cause existed. The court is not bound by the investigator's conclusions. It will examine the evidence independently and apply the McKinley v. BC Tel, 2001 SCC 38, proportionality framework.

This means that a finding of misconduct in a workplace investigation does not automatically justify termination. The court will consider the nature and severity of the misconduct, your employment history, whether the conduct was isolated or part of a pattern, and whether the employer's response was proportionate.

Practical Advice

If you are being investigated:

• Cooperate. Refusing to participate in a workplace investigation can itself be grounds for discipline.
• Ask for the allegations in writing, or at least in clear verbal detail.
• Take notes during and immediately after your interview. Record who was present, what questions were asked, and what you said.
• Do not discuss the investigation with colleagues unless advised otherwise.
• Consider consulting an employment lawyer — you may not have a right to have them present during the interview, but they can advise you on your rights and strategy.
• Do not destroy, delete, or alter any documents or communications that may be relevant to the investigation.

If you filed a complaint:

• Provide as much detail as possible — dates, times, locations, witnesses, and any documentary evidence.
• Keep your own records of the complaint and any follow-up communications.
• If you experience any retaliation after filing the complaint, document it immediately and report it.
• Understand that the investigation may not produce the outcome you want. An investigation may find the complaint unsubstantiated even if you believe it is true. That does not mean you were wrong — it means the evidence available did not meet the standard of proof.

The Bottom Line

Workplace investigations are a necessary part of modern employment. They exist to protect employees, maintain safe workplaces, and help employers meet their legal obligations. But they are not courts. They do not have the same procedural safeguards. And the person conducting the investigation is paid by the employer, not by you.

Understanding your rights in a workplace investigation — whether you are the complainant, the respondent, or a witness — is essential to protecting your interests. The investigation is not the final answer. It is one step in a process that may involve negotiation, litigation, or a tribunal hearing. Know your rights. Document everything. And if the stakes are high, get legal advice.