Ontario’s Workplace Safety and Insurance Board administers no-fault compensation for injured workers under the Workplace Safety and Insurance Act, 1997. The overwhelming majority of claims are genuine, and the system exists to support workers who are genuinely hurt. But exaggeration and misrepresentation do occur, and when they do, the cost is carried by employers and, ultimately, by the integrity of the system. For an employer or insurer, the question is never whether to take a claim seriously. It is whether the reported limitation matches what the claimant actually does.
Surveillance is one of the tools used to answer that question. This page explains how it fits within the WSIB framework, what lawful surveillance looks like, and what actually holds up when a file is adjudicated or appealed. It is general information, not legal advice.
Where surveillance fits
The WSIB itself recognizes surveillance as an investigative tool. The Board may gather evidence through its own investigation function or engage a licensed private investigator, and the Board maintains an operational policy governing how surveillance is used in claims. Employers, too, may initiate an investigation where they have a genuine, articulable concern about a claim, often working through their insurer or counsel.
The purpose is narrow and specific: to document a claimant’s observable activity during the claim period and compare it against the limitations they have reported. Surveillance does not diagnose. It documents. A claimant who reports that they cannot lift, bend, or stand for more than a few minutes, and who is then observed doing precisely those things, has created a discrepancy that the decision-maker is entitled to weigh alongside the medical evidence.
What lawful WSIB surveillance looks like
Lawful surveillance is conducted from public vantage points and captures what is visible to the public. It does not involve trespass, it does not intrude on spaces where a person has a reasonable expectation of privacy, and it does not involve intercepting private communications. It is grounded in a legitimate purpose, investigating a specific concern about a claim, which is the footing federal privacy law requires for collecting personal information without consent. We explain that footing in PIPEDA and lawful surveillance.
Done properly, the work produces continuous, timestamped video and detailed observation logs, with a clear record of who observed what, when, and from where. That chain of documentation is what separates usable evidence from a handful of ambiguous clips.
What actually holds up
The evidence that survives is the evidence that is specific, continuous, and honestly presented. A few things determine whether surveillance is persuasive at adjudication, on appeal, or before the Workplace Safety and Insurance Appeals Tribunal.
It has to be genuinely inconsistent with the reported limitation, not merely a snapshot that looks bad out of context. A single frame of a claimant carrying a bag proves little; sustained activity that directly contradicts a stated restriction proves a great deal. It has to be complete, because selectively edited surveillance invites the argument that the full record would tell a different story. And it has to be lawfully obtained, because evidence gathered through trespass or intrusion can be challenged and discounted.
The strongest reports are also honest about what they do not show. Genuine claims survive verification, and a professional report says so where that is what the footage supports. That candour is not a weakness. It is what makes the report credible when it does identify a real discrepancy.
The practical standard
For an employer or insurer, the useful question to ask an investigator is not “can you get footage.” It is “will this footage hold up.” The answer depends on lawful method, continuous documentation, and a report written to feed directly into a return-to-work decision or an appeal alongside the medical record. That is the standard the work has to meet, because a WSIB file is decided on evidence, and weak evidence is worse than none.
Not legal advice
This page is general information and is not legal advice. WSIB adjudication and appeals turn on the specific facts and medical evidence of each claim; consult a lawyer or qualified representative for a specific matter.