Workplace Bullying vs. Harassment in Ontario: What Your Investigation Must Address

Workplace bullying and harassment are not synonymous in Ontario law—and that distinction matters profoundly when you're designing an investigation. Many organizations use these terms interchangeably, creating confusion about what conduct actually requires investigation, what legal frameworks apply, and how findings should be documented. This ambiguity costs time, creates exposure, and weakens defensibility.

In this guide, we unpack the Ontario legal landscape and show you how to structure investigations that address both concepts clearly.

The OHSA Definition vs. The Human Rights Concept

Ontario's Occupational Health and Safety Act (OHSA) defines "harassment" narrowly: conduct, comment, gesture, or action that is not based on grounds protected by the Human Rights Code and is known, or reasonably ought to be known, to be unwelcome. This covers exclusion, mockery, intimidation, and other forms of mistreatment—but only when they're not rooted in race, gender, disability, religion, or other protected grounds.

If conduct is based on a protected ground, it falls under Ontario's Human Rights Code, not OHSA harassment. A comment about someone's race, gender identity, or disability is human rights discrimination, not mere harassment.

"Workplace bullying" is not a term defined in Ontario legislation. It's a colloquial concept describing repeated, targeted mistreatment—sometimes harassment (under OHSA), sometimes discrimination (under Human Rights Code), sometimes neither (poor management or conflict). This absence of a legal definition is precisely why many investigations stumble: they treat bullying as a standalone violation when it's actually a symptom of conduct that may fall into other legal categories.

Why the Distinction Matters in Investigation

Scope clarity. An OHSA harassment investigation asks: "Did conduct occur that, if true, would violate workplace harassment policy?" A human rights investigation asks: "Did conduct occur based on a protected ground?" These questions demand different evidence, witness questions, and documentation.

Defensibility. If you investigate a complaint as "bullying" but the conduct is actually discrimination, your investigation may lack the rigor required by human rights law. You won't have asked the right questions, gathered the right evidence, or documented the discriminatory intent or impact. Conversely, if you over-investigate ordinary management conflict as harassment, you create exposure by treating normal workplace friction as a legal violation.

Remedies and outcomes. Harassment findings lead to conduct discipline. Discrimination findings trigger human rights obligations: accommodation, systemic review, and potentially external complaint exposure. An investigation that mischaracterizes the nature of conduct will recommend the wrong remedy.

The Bullying Grey Area

This is where most investigations falter. Bullying—repeated, targeted mistreatment—can manifest as:

• OHSA harassment: exclusion, insults, intimidation, yelling, or condescension not based on protected grounds.
• Human rights discrimination: the same conduct because of race, gender, disability, or another protected ground.
• Poor management: legitimate criticism delivered harshly, unreasonable workload expectations, or inconsistent standards—not illegal, but damaging.
• Conflict: mutual antagonism where both parties bear responsibility.

Your investigation must distinguish between these categories. A manager who is harsh, dismissive, and critical of all underperforming employees is not engaging in harassment if the conduct is based on performance. The same conduct directed exclusively at an employee of a particular race, or at all employees who are mothers, may be discrimination.

What Your Investigation Framework Must Cover

1. Protected ground assessment. Early in the investigation, ask: Is there any indication the conduct is based on a protected ground—race, colour, ancestry, place of origin, political belief, creed, sex, sexual orientation, gender identity, gender expression, age, marital status, family status, or disability? If yes, your investigation must probe discriminatory intent and impact under human rights law, not just OHSA harassment.

2. Pattern documentation. Workplace bullying is characterized by repetition. Your investigation should establish:

• Frequency and duration of the conduct.
• Whether it was targeted at one individual or multiple targets.
• Whether targets share any demographic or professional characteristic (suggesting targeting based on a protected ground or performance).
• Whether the respondent engages in similar conduct toward others (indicating a pattern of behavior vs. a one-off incident).

3. Witness insight into intent and impact. Ask witnesses not just "Did you see this happen?" but "Did the respondent seem to be treating this person differently?" and "Did you ever hear the respondent make comments about [protected ground]?" These questions help establish whether conduct was discriminatory or simply harsh.

4. Respondent context. Interview the respondent about:

• The reasons for their conduct (performance management, policy enforcement, conflicting work styles).
• Whether they treat other employees similarly.
• Whether they were aware of the impact on the complainant.
• Whether they hold any conscious or unconscious biases related to protected grounds.

5. Organizational policy alignment. Review your conduct policy. Does it prohibit both OHSA harassment and discrimination? Does it distinguish between them? Your investigation findings should map to policy language, not ambiguous terms like "bullying."

Common Investigation Mistakes in the Bullying Context

Assuming bullying = harassment. Not all bullying is harassment under OHSA; not all harassment is bullying. Bullying is a pattern; a single harsh comment is not bullying. Harassment, under OHSA, can be a one-time incident. Anchor your findings in Ontario law, not colloquial language.

Failing to probe protected grounds early. If you investigate a complaint as "bullying" without exploring whether the conduct relates to protected grounds, you may miss discrimination. Ask complainants and respondents directly about protected ground connections early—don't bury the question in a final follow-up.

Over-investigating conflict. Not all workplace conflict is harassment or bullying. If both parties contributed to tension, your investigation should acknowledge mutual responsibility. Treating normal workplace disagreement as bullying creates investigation fatigue and dilutes the serious nature of actual violations.

Ignoring power dynamics. Bullying by a manager carries different weight than peer conflict. An investigation must distinguish between conduct that is harassment under OHSA and conduct that is abusive use of authority. The latter may not violate OHSA but may violate your policies or organizational values.

Documenting Your Findings Defensibly

Your investigation report should:

1. State the allegations clearly. Was the complaint of OHSA harassment? Discrimination? Bullying (define what this means in your finding)?
2. Distinguish between categories. If conduct falls under multiple categories, say so. "The respondent made comments about the complainant's gender; this falls under both OHSA harassment and potential Human Rights Code discrimination."
3. Apply the legal test. For OHSA harassment: Did conduct, comment, gesture, or action occur that was not based on a protected ground and was known or reasonably ought to be known to be unwelcome? For discrimination: Did conduct occur based on a protected ground?
4. State your finding within the legal framework. "We found that the respondent engaged in harassment as defined under OHSA Section 1(1)" or "We found evidence of conduct that may constitute discrimination under the Human Rights Code based on the protected ground of [disability / race / gender / etc.]."

When to Involve External Investigators

Bullying investigations that touch on protected grounds should consider external investigation if:

• The respondent is senior (limiting impartiality of internal investigators).
• Protected ground allegations are complex or systemic.
• Your organization lacks in-house expertise in human rights law.
• The complainant has stated they fear retaliation from internal investigators.

An external investigator trained in Ontario employment law can distinguish bullying from harassment from discrimination, ask the right questions, and produce a report defensible under human rights scrutiny.

The Bottom Line

Bullying is a symptom; harassment and discrimination are violations. Your investigation must determine which legal framework applies, gather evidence accordingly, and document findings that reflect Ontario law. Organizations that treat bullying as a standalone category—without distinguishing OHSA harassment and human rights discrimination—leave themselves exposed to incomplete investigations and indefensible outcomes.

Ready to structure your investigation framework defensibly? Contact us to discuss your workplace conduct investigation.