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Find a Lawyer Ā» Canada Legal Guides Ā» Federal Criminal Law Canada Ā» Criminal Liability for Construction Firms Under Canada’s Westray Law

Criminal Liability for Construction Firms Under Canada’s Westray Law

22 Jun 2026 5 min read No comments Federal Criminal Law Canada
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Under Canada’s Westray Law, corporate directors and construction firm executives can face federal criminal negligence charges—and potential prison time—if poor workplace safety policies lead to employee injury or death.

When a devastating accident occurs on a construction site in Toronto, Calgary, or Vancouver, the consequences extend far beyond workers’ compensation claims. 🏗️ Historically, companies faced mere financial penalties under provincial Occupational Health and Safety (OHS) acts. However, following a tragic mining disaster, the federal government passed Bill C-45, widely known as the Westray Law. This legislation amended the Criminal Code of Canada, making it explicitly clear that corporations, their directors, and anyone who directs the labour of others can be held criminally responsible for workplace fatalities and severe injuries.

For business-to-business (B2B) construction firms, this means a lax safety culture is no longer just an administrative risk; it is a direct path to an indictable offence. The RCMP and local police investigate fatal workplace incidents not just as tragic accidents, but as potential crime scenes. If prosecutors believe executives showed a wanton and reckless disregard for the lives of their employees, they will not hesitate to lay federal criminal negligence charges. Generally, navigating these high-stakes investigations requires the immediate intervention of a top-tier criminal defence law firm.

Step-by-Step Process: Navigating a Westray Law Investigation in Canada

When a severe accident happens, the response from law enforcement is rapid and intense. Whether your site is in a remote part of Alberta or downtown Montreal, the process generally unfolds through these critical phases.

Step 1: Joint Police and OHS Investigations

Immediately after a fatal or critical injury, the site is locked down. 🚨 Local police (or the RCMP in certain jurisdictions) and provincial Ministry of Labour inspectors will arrive to conduct parallel investigations. While the Ministry focuses on provincial regulatory violations, the police are looking for evidence of criminal negligence. Your company must cooperate, but directors should immediately consult a lawyer before making formal statements that could be used against them in a criminal court.

Step 2: Identifying the “Directing Mind”

To charge a corporation, the Crown must prove that a “directing mind”—typically an executive, site manager, or director—acted negligently. The Westray Law dramatically expanded this definition. Even if the CEO was not on site, if they set a corporate policy that prioritized speed over safety (knowing the risks), they could be held personally and criminally liable. The police will seize internal emails, safety logs, and meeting minutes to establish this chain of command.

Step 3: Laying Criminal Charges

If investigators find sufficient evidence of gross negligence, they will formally charge the corporation and/or the individuals. ⚖️ Criminal negligence causing death is a strictly indictable offence, carrying a maximum penalty of life in prison for individuals. For the corporation itself, there is no maximum limit on the financial fines a judge can impose. You will be required to appear before a provincial Superior Court (such as the Superior Court of Justice in Ontario) to answer the charges.

Step 4: Building the Defence Strategy

Defending against a Westray charge requires proving that the company exercised due diligence and took all reasonable steps to protect workers. Your legal team will gather evidence showing robust safety training, enforcement of personal protective equipment (PPE), and immediate correction of known hazards. If an employee tragically ignored strict, well-enforced safety protocols, it may be possible to defend the corporation against the criminal threshold of negligence.

How Much Does it Cost to Defend a Corporate Criminal Charge?

Facing an indictable offence under the Criminal Code is an existential threat to a business. The costs in Canadian dollars (CAD) reflect the severity of the situation:

  • Provincial OHS Fines: While separate from criminal charges, provincial fines for corporations often exceed $500,000 to $1,500,000 CAD.
  • Criminal Code Fines: For corporations convicted of criminal negligence, the fine is limitless. Judges routinely issue multi-million dollar penalties meant to severely punish the firm.
  • Corporate Criminal Defence Lawyer: Retaining a highly specialized law firm for a complex trial can cost between $100,000 and $300,000+ CAD.
  • Insurance Limitations: It is crucial to note that while corporate insurance might cover civil lawsuits or some legal fees, it is legally forbidden in Canada for an insurance policy to pay for criminal fines.
Type of LiabilityGoverning AuthorityPotential Penalties
Regulatory (OHS)Provincial Ministry of LabourFines (capped), up to 1 year jail
Criminal (Westray Law)Criminal Code (Federal) / RCMPUnlimited fines, Life in prison
Civil LawsuitProvincial Courts (WSIB limits apply)Financial damages (often barred by WSIB)

How Long Does the Process Take?

A corporate criminal negligence case moves incredibly slowly. The initial joint investigation by police and labour ministries can take 1 to 2 years before formal charges are even laid. ⌛ Once the charges enter the federal criminal justice system, pre-trial motions, discovery, and the trial itself can consume an additional 2 to 4 years. During this prolonged period, the construction firm often suffers severe reputational damage and may be barred from bidding on public government contracts.

Frequently Asked Questions (FAQ)

Can a foreman or site supervisor be charged under the Westray Law?

Yes. The law explicitly targets anyone who “undertakes, or has the authority, to direct how another person does work.” If a site supervisor knowingly forces an employee to perform a dangerous task without proper safety gear, they can be charged individually.

What is the difference between an OHS charge and a Criminal Code charge?

An OHS charge is a provincial regulatory offence focusing on a failure to meet safety standards. A Criminal Code charge requires the Crown to prove a “wanton or reckless disregard for the lives or safety of other persons,” which is a much higher legal threshold with much harsher penalties.

Does our corporate liability insurance cover a criminal trial?

Directors and Officers (D&O) liability insurance may advance funds to cover your legal defence costs. However, if you are ultimately found guilty of a criminal offence, the policy will not pay your prison time or cover the federal criminal fines.

Are Westray Law convictions common in Canada?

They are relatively rare but increasing. Police typically default to provincial OHS charges because they are easier to prove. However, public pressure and union advocacy have pushed prosecutors to utilize the Criminal Code more aggressively in cases of gross negligence.

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