Last Updated: March 2026
Prohibited Action Complaints in BC: What Every Employer Must Know
A prohibited action complaint is one of the most serious legal risks a British Columbia employer faces when investigating a workers’ compensation claim. Under Division 6 of the Workers Compensation Act (Sections 47 through 50), employers are prohibited from taking any action that adversely affects a worker’s employment because that worker exercised a right under the Act, including filing a WorkSafeBC injury claim.
What makes this area of law particularly consequential for employers is the reversed burden of proof. In most legal contexts, the person making an accusation must prove it. In a prohibited action complaint, the employer must prove they did nothing wrong. Without proper documentation and a defensible evidence trail, this can be a difficult standard to meet.
This page provides a complete breakdown of each section of Division 6, what the Board can order if a violation is found, the appeal process through WCAT, and what employers need to understand before taking any action related to a worker who has filed a WCB claim.
In This Article
- What Is a Prohibited Action?
- What Activities Are Protected?
- The Complaint Process and the Reversed Burden of Proof
- Filing Deadlines
- What the Board Can Order
- The Appeal Path to WCAT
- How Investigations Can Trigger Prohibited Action Complaints
- The Post-FID Risk Landscape
- How to Protect Yourself as an Employer
- FAQ: Prohibited Action Complaints
What Is a Prohibited Action?
A prohibited action is any act or omission by an employer that adversely affects a worker’s employment terms or conditions. This is defined in Section 47 of the Workers Compensation Act. The definition is deliberately broad, as the legislation uses the word “includes,” which means the specific examples listed are not exhaustive. Any employer conduct that negatively impacts a worker’s employment can qualify, even if it is not specifically named in the Act.
Section 47(2) provides specific examples of prohibited actions:
- Suspension, layoff, or dismissal: The most obvious forms, but not the only ones that matter
- Demotion or loss of opportunity for promotion: Including being passed over for advancement that the worker would otherwise have received
- Transfer of duties, change of location, reduction in wages, or change in working hours: Even changes that seem routine or operational can qualify if they coincide with a protected activity
- Coercion or intimidation: This is the category most relevant to investigations because an aggressive or poorly justified investigation can be characterized as employer intimidation
- Imposition of any discipline, reprimand, or other penalty: Including verbal warnings, written warnings, performance reviews timed to coincide with a claim, and any formal or informal disciplinary action
- Discontinuation or elimination of the worker’s job: Including restructuring or position elimination that happens to affect the claimant
The breadth of this definition is important. It means that even well-intentioned employer actions, such as reassigning duties, adjusting a schedule, or restructuring a department, can be challenged if they adversely affect a worker who has recently exercised a protected right. The question is not whether the employer intended to retaliate, but whether the action adversely affected the worker and whether it followed a protected activity.
What Activities Are Protected?
Section 48 of the Workers Compensation Act identifies the specific activities that trigger worker protection. An employer must not take or threaten a prohibited action against a worker for any of the following reasons:
Exercising Rights Under the OHS Provisions
This is the broadest category and the one most relevant to injury claim investigations. It covers any right or duty under the Occupational Health and Safety provisions, the regulations, or an applicable order. In practical terms, this includes filing a WorkSafeBC injury claim, refusing unsafe work, participating in joint health and safety committee activities, requesting workplace accommodations related to an injury, and cooperating with any WorkSafeBC process.
The moment a worker files a WCB claim, they are exercising a right under the OHS provisions. From that point forward, any adverse employment action is potentially a prohibited action, regardless of whether the employer believes the claim is legitimate.
Testifying or Being About to Testify
Workers are also protected if they have testified or are about to testify in any matter, inquiry, or proceeding under the Workers Compensation Act or the Coroners Act on an issue related to occupational health and safety. This protection extends to anticipated testimony, not just past testimony, meaning an employer cannot take preemptive action against a worker who may be called as a witness.
Reporting Health and Safety Information
Workers are protected when they give information about conditions affecting workplace health or safety to virtually anyone: the employer, a co-worker, a union, or any person involved in administering the OHS provisions. This protection covers both formal complaints through official channels and informal communications. A worker who mentions a safety concern to a co-worker is just as protected as one who files a formal written complaint.
The key takeaway is that the protection is extremely broad. It attaches to the exercise of the right, not to the merits of the underlying claim. A worker whose claim is ultimately found to be exaggerated or even fraudulent was still protected at the time they filed it, because filing the claim was an exercise of a right under the Act.
The Complaint Process and the Reversed Burden of Proof
Section 49 establishes both the complaint mechanism and the reversed burden of proof. This section is the reason that proper documentation before, during, and after an investigation is not optional, it is essential.
Who Can Complain
Any worker who considers that an employer has taken or threatened a prohibited action contrary to Section 48 may file a complaint. The threshold is subjective and the worker need only “consider” that a contravention has occurred. There is no requirement to prove it at the filing stage. The worker may also file if they believe an employer has failed to pay wages required under the OHS provisions.
Two Available Paths
Under Section 49(2), the worker can pursue the matter through a union grievance procedure (if a collective agreement exists) or by filing a formal written complaint with the Board (WorkSafeBC). They need only choose one path. This means both unionized and non-unionized workers have access to a remedy.
The Reversed Burden of Proof
Section 49(4) is the provision that makes prohibited action complaints so consequential for employers. It states that the burden of proving there has been no contravention is on the employer. This reversal applies whether the matter is dealt with under a collective agreement or by complaint to the Board.
In practice, this means that once a worker establishes two things, that they exercised a protected right (such as filing a WCB claim) and that they subsequently experienced an adverse action (investigation, discipline, termination, schedule change, or any other negative employment consequence), the burden shifts entirely to the employer. The employer must then prove, on a balance of probabilities, that the adverse action was not motivated by the worker’s protected activity.
This is called the “But-For” test because the question is asked in exactly those terms: but for the worker filing a claim, would this action have been taken? If the employer cannot answer yes, backed by documented, objective evidence, they will lose.
The standard is not “we had suspicions.” The standard is “we had evidence, and here it is.” This is why establishing reasonable suspicion and documenting it before an investigation begins is so critical, as it creates the evidentiary foundation for the employer’s defense.
Filing Deadlines
A worker has one full year (365 days) from the date of the alleged prohibited action to file a written complaint with the Board. This deadline is established in Section 49(3)(a) of the Workers Compensation Act.
This timeline may be longer than many employers realize. An employer who terminates a worker in March could face a prohibited action complaint as late as the following March. There is no short window after which the risk passes. Documentation and evidence must remain available and defensible for the full 12-month period following any employment action involving a worker who has filed a WCB claim.
A separate, shorter deadline applies to complaints about unpaid wages: 60 days after the wages became payable, under Section 49(3)(b). This shorter deadline applies only to wage complaints, not to prohibited action complaints generally.
What the Board Can Order
If WorkSafeBC determines that a prohibited action occurred, the Board has broad remedial powers under Section 50(2). The consequences for the employer are significant and cumulative, as the Board can order multiple remedies simultaneously:
- Cease order: The employer must immediately stop the prohibited action.
- Reinstatement: The employer must reinstate the worker to their former position under the exact same terms and conditions. This is not a modified or alternative position, it is the identical role with identical terms. This applies even if the employer genuinely believes the worker was committing fraud.
- Wage payment: The employer must pay all wages owed under the OHS provisions by a specified date.
- Record expungement: All reprimands, disciplinary records, and references to the matter must be removed from the worker’s personnel file. The entire disciplinary action is erased as if it never occurred.
- Out-of-pocket expenses: The employer must pay the worker’s reasonable expenses incurred as a result of the prohibited action. This can include legal fees, travel costs, medical expenses, and any other costs directly attributable to the employer’s conduct.
- Any other measure: The Board may order the employer to “do any other thing that the Board considers necessary to secure compliance.” This is an open-ended remedial power that gives the Board broad discretion to fashion whatever remedy it deems appropriate for the circumstances.
The Board also acts quickly. Section 50(1) requires the Board to “immediately” inquire into the complaint upon receipt. If the complaint is not settled or withdrawn, the Board must determine whether the contravention occurred and deliver a written determination to both parties. This means the employer needs to have their evidence prepared before a complaint is filed, not after.
A worst-case outcome for an employer involves reinstatement of a worker they believe committed fraud, back pay covering months of wages, a wiped disciplinary record, reimbursement of the worker’s expenses, and potentially additional measures at the Board’s discretion. The financial and operational cost of this outcome typically far exceeds the cost of conducting a proper, compliant investigation in the first place.
The Appeal Path to WCAT
Prohibited action complaints follow a distinct appeal path within the BC workers’ compensation system. Unlike most WorkSafeBC decisions, which are first reviewed by the Review Division before they can be appealed to the Workers’ Compensation Appeal Tribunal (WCAT), prohibited action determinations bypass the Review Division entirely. They are appealed directly to WCAT.
This means WCAT Vice Chairs are the first and only level of appeal for prohibited action cases. There is no intermediate review stage where deficiencies in the employer’s evidence can be identified and corrected. The evidence must be WCAT-ready from the start.
Key aspects of WCAT decision-making that are relevant to employers:
- 180-day decision timeline: WCAT must render a decision within 180 days from the date WorkSafeBC provides a copy of the file to the tribunal.
- Benefit of the doubt: If the evidence is evenly balanced on a compensation issue, WCAT decides in favour of the worker. This means the employer’s evidence must be strong enough to tip the balance decisively and a tie goes to the worker.
- Final and conclusive: WCAT decisions are final in most cases. The only further recourse is judicial review by the BC Supreme Court, which is limited to questions of law and procedural fairness, as the court does not re-weigh the evidence.
The complete procedural path is: WorkSafeBC Board determination (Section 50) → direct appeal to WCAT (bypasses Review Division) → WCAT decision is final and conclusive → judicial review by BC Supreme Court only on questions of law.
For a deeper look at the WCAT process, see our knowledge page on the WCAT appeal process for prohibited action complaints.
How Investigations Can Trigger Prohibited Action Complaints
This is where Division 6 intersects directly with injury claim investigations. An employer who commissions a private investigation into a worker’s WCB claim is not automatically committing a prohibited action, but they are operating in a legal environment where the margin for error is very small.
The Investigation Itself as a Prohibited Action
Section 47(2)(d) includes “coercion or intimidation” in the definition of prohibited action. If an investigation is poorly justified, disproportionate, or conducted in a manner that the worker perceives as aggressive or intimidating, it can be argued that the investigation itself was a prohibited action. This is true even if the worker did not know about the investigation at the time, as once it comes to light (for example, during a subsequent termination or discipline), the argument becomes available.
The risk is highest when the investigation is initiated shortly after the claim is filed, when there is no documented reasonable suspicion independent of the claim filing, when the investigation is disproportionate to the evidence available, or when the investigator’s conduct crosses privacy or professional boundaries.
Employment Actions Based on Investigation Results
Even when a well-conducted investigation produces clear evidence of functional inconsistency, how the employer uses that evidence matters. Terminating a worker immediately after receiving surveillance footage, without submitting the evidence to WorkSafeBC first or obtaining legal advice, creates a straightforward prohibited action argument: the employer took adverse action against a worker who filed a claim.
The recommended pathway is to submit the investigation evidence to WorkSafeBC as “new information” relevant to the claim, request that WorkSafeBC review the claim in light of the evidence, and retain independent legal counsel before taking any employment action. This creates a documented trail showing the employer acted through proper channels. For the full post-investigation guide, see our knowledge page on what employers should do after receiving investigation results.
Workplace Conduct During the Investigation
Actions taken during the investigation period can also trigger a complaint. If the worker’s hours, duties, or wages change while the investigation is underway, even for reasons the employer considers unrelated, the timing creates an inference of retaliation. Supervisors who express skepticism about the claim, co-workers who gossip about the investigation, or HR staff who treat the worker differently all create evidence that a worker’s advocate can use in a prohibited action complaint.
During an investigation, the employer must maintain the worker’s employment conditions exactly as they were, limit knowledge of the investigation to the minimum number of people necessary, and refrain from any discussion of the claim’s legitimacy in the workplace.
The Post-FID Risk Landscape
The disbanding of WorkSafeBC’s Field Investigations Division (FID) in April 2026 has elevated the prohibited action risk for employers. When the FID existed, investigations of suspected fraud were conducted by a neutral government unit with a presumption of institutional independence. Now that all claim investigations are privately commissioned, every investigation is more vulnerable to the argument that it was retaliatory rather than investigative.
Worker advocacy groups are expected to lean more heavily on prohibited action complaints in the post-FID environment. Anticipated arguments include that the investigation was initiated because the worker filed a claim rather than because of independent evidence; that private surveillance is inherently more intimidating than a government-led investigation; and that the employer is attempting to fill the FID’s role in a way that deters legitimate claims.
These arguments make proper documentation more important than ever. The employer’s file must clearly demonstrate that the investigation was based on specific, objective evidence of functional inconsistency, not on the fact that a claim was filed.
How to Protect Yourself as an Employer
Employers who approach claim investigations with proper preparation and professional execution can protect themselves from prohibited action exposure. The key principles are:
- Establish reasonable suspicion before acting. You must have specific, objective, documentable evidence of inconsistency between the worker’s reported limitations and their actual behaviour. This evidence must exist independently of the claim filing itself. For the full guide, see Reasonable Suspicion: What BC Employers Need Before Hiring a PI.
- Pass the “But-For” test. Ask yourself honestly: would I be investigating this worker if they had not filed a WCB claim? If the answer is no, you do not have a defensible basis for the investigation.
- Document everything before the investigation begins. The timeline must show evidence first, investigation second. If the investigation request date is closer to the claim filing date than to the evidence discovery date, the file is vulnerable.
- Use a licensed, professional investigation firm. A firm that understands PIPA compliance, follows objective reporting standards, and produces SHA-256 verified evidence provides the documentation foundation you need for a defense.
- Maintain employment neutrality during the investigation. No changes to the worker’s hours, duties, wages, or conditions. No discussion of the investigation or the claim’s legitimacy in the workplace.
- Submit evidence through proper channels. After the investigation, submit the results to WorkSafeBC as “new information” before taking any unilateral employment action. See What Employers Should Do After Receiving Investigation Results.
- Retain independent legal counsel. Before any termination, discipline, or other employment action based on investigation results, get legal advice. The manner in which you use evidence is just as important as the quality of the evidence itself.
- Retain your files for at least two years. Given the one-year complaint window plus the time needed for Board inquiry and potential WCAT appeal, a two-year retention period provides a defensible safety margin.
Frequently Asked Questions
Yes. If the investigation is deemed a prohibited action under the Workers Compensation Act. For example, if the investigation is found to be retaliatory rather than based on independent evidence, the employer can be ordered to reinstate the worker, pay back wages, expunge records, and cover expenses. The reversed burden of proof means the employer must prove the investigation was justified, not the other way around.
Once a worker establishes that they exercised a protected right (like filing a WCB claim) and then experienced an adverse employment action, the burden of proof shifts to the employer. The employer must prove, on a balance of probabilities, that the action was not motivated by the protected activity. Without documented, objective evidence supporting an independent justification, the employer will likely lose.
One full year (365 days) from the date of the alleged prohibited action, under Section 49(3)(a) of the Workers Compensation Act. A separate 60-day deadline applies only to complaints about unpaid wages under Section 49(3)(b).
Yes. If an investigation is poorly justified, disproportionate, or conducted in a manner that could be characterized as coercion or intimidation, the investigation itself can constitute a prohibited action under Section 47(2)(d). This is why professional, documented, proportionate investigation practices are essential.
The “But-For” test asks: would the employer have taken this action (investigation, discipline, termination) even if the worker had not filed a WCB claim? If the answer is no, if the claim filing was the driving factor, the action will likely be considered retaliatory. Employers must be able to demonstrate with documented evidence that their action was based on independent grounds, not the exercise of the worker’s rights.
No. Unlike most WorkSafeBC decisions, prohibited action determinations bypass the Review Division. They are appealed directly to the Workers’ Compensation Appeal Tribunal (WCAT). This means the evidence must be prepared to WCAT standards from the outset.
Do not act unilaterally after receiving investigation results. Submit the evidence to WorkSafeBC as “new information” relevant to the claim before taking any employment action. Retain independent legal counsel before any termination, discipline, or other adverse action. This creates a documented trail showing you acted through proper channels rather than retaliating against the worker.
Yes. With no government fraud investigation unit, all claim investigations are now privately commissioned. Worker advocates may argue that private investigations are inherently retaliatory. This makes documentation and compliance even more critical than before. Employers should also document any unsuccessful attempts to use WorkSafeBC’s fraud tip line, as this strengthens the argument that private investigation was the only available option.
Related Knowledge Pages
- Injury Claim Investigations in BC Guide (Pillar Page)
- PIPA and Employer Surveillance: Privacy Law for WCB Investigations in BC
- Reasonable Suspicion: What BC Employers Need Before Hiring a Private Investigator
- The WorkSafeBC FID Disbanding: What It Means for BC Employers in 2026
- The WCAT Appeal Process for Prohibited Action Complaints
- What Employers Should Do After Receiving Investigation Results
- How Investigation Evidence Is Protected: SHA-256 Hashing and Digital Chain of Custody
References and Regulatory Resources
- Workers Compensation Act – Division 6: Worker Protection (Sections 47–50)
- Workers Compensation Act – BC Laws (Full Text)
- Workers’ Compensation Appeal Tribunal (WCAT)
- WorkSafeBC – Workers’ Compensation Board of BC
- Province of BC – Employers’ Advisers Office (EAO)
- Province of BC – Appeals to WCAT (Factsheet)
Need Help Navigating a WCB Claim Investigation?
If you are a BC employer dealing with a suspected fraudulent or exaggerated WorkSafeBC claim and want to make sure your investigation is conducted compliantly, contact Shadow Investigations by phone at 604-657-4499 or through our confidential inquiry form below. We have been handling injury claim and fraud-related investigations throughout BC since 1990. All consultations are free, confidential, and carry no obligation.
Contact Form for Investigation Inquiries
"*" indicates required fields
About the Author
