Confidentiality in Workplace Investigations: What Ontario Employers Can Promise

An employee reporting a workplace complaint often asks the same question first: "Will this stay confidential?" It's tempting for an employer to say yes without qualification, just to get the person comfortable enough to come forward. But that promise is often one an employer can't actually keep — and breaking it, even unintentionally, can do real damage to trust and to the investigation itself.

Here's a more honest way to frame confidentiality in a workplace investigation.

Why "Full Confidentiality" Is a Promise You Can't Keep

A workplace investigation, almost by definition, requires telling the respondent what they're accused of. Procedural fairness generally means the person facing allegations gets to know, in reasonable detail, what's being said about them and gets a genuine chance to respond. That alone means a complainant's identity and the substance of their complaint usually can't be kept from the respondent.

Beyond that, information from an investigation can end up needing to be disclosed in other contexts:

• A human rights application or employment litigation, where investigation records may be relevant evidence
• A WSIB claim, where the same incident may also be reported as a workplace injury
• Internal reporting to management, insurers, or legal counsel where appropriate

Telling a complainant "this will be completely confidential" sets an expectation the process usually can't meet, and it can seriously undermine trust when the respondent inevitably learns the substance of the complaint.

What You Can Promise Instead

Rather than promising full confidentiality, a more accurate and more defensible commitment looks like this:

• Information will be shared only with those who genuinely need to know it to conduct the investigation and decide what to do
• The respondent will be told what they're accused of, but not necessarily every detail beyond what's needed for a fair response
• The complainant will not face reprisal for raising the concern in good faith
• Records will be kept reasonably secure and access will be limited

This framing is honest about the limits while still giving the complainant real, meaningful reassurance about how the information will be handled.

Who Needs to Know What

Protecting Against Reprisal

Confidentiality and protection from reprisal are related but different things. Ontario's occupational health and safety framework generally protects workers from being penalized for raising a safety or harassment concern in good faith, or for participating in an investigation. That protection matters just as much as — arguably more than — the confidentiality of the complaint itself, because a fear of retaliation is often what keeps people from reporting in the first place.

Employers should be explicit that:

• No one will face discipline, demotion, or a changed work assignment for raising a good-faith complaint
• Anyone involved in the investigation, including witnesses, is protected from retaliation
• Any concern about reprisal during or after the investigation should be raised immediately

This commitment should be stated up front, before the investigation even begins, rather than left as an assumption. An employee who fears quiet retaliation — a shift change, a cooler relationship with a manager, being passed over for an opportunity — often won't say so directly, so employers need to watch for those signs proactively rather than waiting for a formal complaint about reprisal.

Frequently asked questions