Interlocutory — Ontario Employment Law
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About Interlocutory
In Ontario employment and labour law, the term "interlocutory" refers to legal proceedings, motions, or court orders that occur during the middle of an ongoing lawsuit, long before the final trial takes place. Because civil litigation can take years to resolve in Ontario courts, situations frequently arise where an employer, employee, or union cannot wait for a final judgment to get urgent relief or handle procedural disputes.
An interlocutory step is provisional and temporary. Its purpose is typically to manage the legal process or to maintain the status quo so that the parties' rights aren't permanently damaged while they wait for their day in court. One of the most common examples in the employment context is an interlocutory injunction. Under the Courts of Justice Act, an employer might seek this type of order to immediately stop a former employee from breaching a non-solicitation agreement or stealing trade secrets. Without an interlocutory order, the employer's business could suffer irreparable harm by the time a trial finally happens.
Other typical interlocutory proceedings include Anton Piller orders (sometimes called "civil search warrants" to seize stolen confidential information), motions to strike out parts of a legal claim, or disputes over what documents must be shared during the discovery phase. In unionized environments, interlocutory applications frequently arise before the courts or the Ontario Labour Relations Board (OLRB) to establish urgent ground rules regarding strike picketing or employer conduct during a labour dispute.
Because interlocutory matters only decide issues on a temporary or procedural basis, they do not provide a final, binding answer on who ultimately wins the lawsuit. Instead, they dictate how the parties must behave or how the litigation will unfold in the meantime. The rules governing these mid-lawsuit steps are found in Ontario's Rules of Civil Procedure and involve strict deadlines and evidence filed via written affidavits rather than live testimony.
Navigating the intermediate stages of a lawsuit is deeply procedural and technical. Because motion tactics can dramatically shift the balance of power in an employment dispute, deciding how and when to pursue or defend against an interlocutory action requires specialized guidance. Anyone facing active litigation should secure seasoned legal counsel to manage these complex mid-stream proceedings.
Frequently Asked Questions
What does "interlocutory" mean in an employment lawsuit?
An interlocutory proceeding is a temporary or provisional legal step taken after a lawsuit has started but before the final trial. These motions are used to resolve urgent issues, protect evidence, or establish temporary rules while the parties wait for their case to be fully resolved.
What is the difference between an interlocutory and a final order?
An interlocutory order only governs a specific issue temporarily while the broader lawsuit continues toward a trial. A final order completely resolves the lawsuit or a fundamental part of the legal claim, ending the litigation on that matter.
Why do employers use interlocutory injunctions against former staff?
Lawsuits can take years to reach trial in Ontario. If a former employee is actively poaching clients or using stolen confidential data, the employer seeks an interlocutory injunction to legally force them to stop immediately, preventing irreversible business damage in the meantime.
Can an interlocutory court decision be appealed?
Yes, but it is much harder than appealing a final decision. In Ontario, you typically need to request "leave" (permission) from the Divisional Court to appeal an interlocutory order, as the justice system tries to prevent lawsuits from being endlessly delayed by mid-litigation appeals.
What is the timeline to respond to an interlocutory motion?
Deadlines for interlocutory motions are often very tight, sometimes requiring a response under the Rules of Civil Procedure within a matter of days if the other side claims exceptional urgency. Fast action is critical to ensure you don't lose the right to defend yourself.
When should I consult an employment lawyer about a court motion?
If you receive notice of an interlocutory motion or injunction, you should contact a lawyer on that exact same day. These proceedings move rapidly, rely on complex written evidence (affidavits), and missing a procedural deadline can severely damage your overall case.
Common Scenarios
- A senior executive resigns and quickly launches a competing business, allegedly violating their non-compete clause. The former employer files an interlocutory motion for an injunction to shut down the competing activity until a judge can hear the full breach of contract trial eighteen months later.
- A company believes a departing software developer downloaded proprietary source code to a personal hard drive. The employer seeks an urgent, specialized interlocutory ruling known as an Anton Piller order—allowing them to enter the former employee's home and seize the drive before the data can be erased.
- During a heated labour dispute, a union sets up a picket line that aggressively blocks delivery trucks from entering an Ontario manufacturing plant. The employer applies for an interlocutory injunction to strictly limit the picketers' behavior and location until the strike concludes.
- A dismissed unionized worker attempts to sue their former boss in civil court for wrongful dismissal. The employer immediately files an interlocutory motion to stay (pause) or dismiss the lawsuit, arguing that the courts have no jurisdiction because the issue must be handled via union grievance arbitration.
What You Should Know
- You must act immediately if served with interlocutory motion materials. Ontario courts operate on strict timetables for delivering responding materials, and failure to reply means the judge may grant the temporary order against you by default.
- Be aware that interlocutory proceedings rely almost entirely on swear written statements called affidavits. You will likely not testify live, so ensuring your lawyer drafts incredibly detailed and accurate written evidence is vital.
- If you want the court to grant an interlocutory injunction, you generally must prove three things: there is a serious issue to be tried, you will suffer "irreparable harm" that money can't fix, and the balance of convenience favors stopping the targeted behavior.
- Do not assume that walking away from an interlocutory loss means the lawsuit is completely over. The underlying legal action is still fully active, and you will still face a final trial over main issues, including potentially massive legal costs.
- Always rely on a qualified Ontario employment litigator for mid-lawsuit procedures. The Rules of Civil Procedure governing interlocutory motions are notoriously complex, and a misstep can irreparably jeopardize the rest of your case.
Featured Cases
Ideal Railings Ltd v Laborers’ International Union of North America, Local 183
2013 CanLII 3049 (ON SC) · 2013-01-30An interlocutory proceeding involving an application for an interim and interlocutory injunction against a union regarding picketing activities.
Vale Inco Ltd. v. Rae
2009 CanLII 66387 (ON SC) · 2009-11-27An interlocutory application concerning the requirements for granting an injunction in a labour and employment context.
94th Avenue Beauty Salon Inc. v. Neglia
2009 CanLII 34773 (ON SC) · 2009-06-19Anton Piller Order in Employment Dispute
This is an interlocutory proceeding involving an application for an Anton Piller order in the context of an employment dispute. The case addresses the procedural requirements for obtaining such an order, specifically focusing on the notice given to the respondent.
National Health and Welfare Union v. Public Service Alliance of Canada
2006 CanLII 22935 (ON SC) · 2006-07-06An interlocutory proceeding involving an application for an interim injunction between two unions in the context of labour law.
Mediamix Marketing Group Inc. v. Whalen
2004 CanLII 34071 (ON SC) · 2004-10-14An interlocutory proceeding seeking an injunction in a matter classified under labour and employment. The specific legal issues and parties' roles are not detailed in the provided keywords.
Ibrahim, Re
2004 CanLII 14700 (ON SC) · 2004-03-01An interlocutory application for a mandatory injunction in a labour and employment dispute.
Treadway Exports Ltd. v. Milo
1990 CanLII 13780 (ON SC) · 1990-05-18Interlocutory Injunction in Employment Dispute
This is an interlocutory proceeding concerning an application for an injunction. The court assessed the strength of the case as part of the balance of convenience test for granting interim relief in an employment-related matter.
Conceptual Benefit Planners Insurance Agency Inc. v. Hoerle
1986 CanLII 7771 (ON SC) · 1986-05-27An interlocutory application for an injunction where the court assessed the strength of the plaintiff's case.
Drake International Inc. v. Tennenbaum et al.
1986 CanLII 7648 (ON SC) · 1986-03-18This is an interlocutory proceeding concerning an application for an injunction under the Courts of Justice Act, 1984 (Ontario). The case is categorized under labour and employment practice and procedure.
Sudbury Regional Police Association et al. v. Sudbury Regional Board of Commissioners of Police et al.
1977 CanLII 1102 (ON SC) · 1977-04-13This is an interlocutory proceeding involving an application for an interim injunction by the Sudbury Regional Police Association against the Sudbury Regional Board of Commissioners of Police. The legal issues concern the grounds for an injunction based on anticipated infringement of legal rights under the Police Act.