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Find a Lawyer » Canada Legal Guides » Federal Criminal Law Canada » What to Do if You Receive a Subpoena for a Federal Criminal Trial in Canada

What to Do if You Receive a Subpoena for a Federal Criminal Trial in Canada

23 Jun 2026 5 min read No comments Federal Criminal Law Canada
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A subpoena is a strict legal order requiring you to testify at a federal criminal trial. Ignoring it can result in a bench warrant for your arrest. You are legally entitled to request witness travel expenses and a daily allowance, which typically range from $20 to $50 CAD per day plus mileage.

Opening your mail or having a police officer hand you a formal legal document is an incredibly stressful moment. 📬 If you receive a subpoena (often called a summons to a witness) for a federal criminal trial, you are being called upon by either the Crown prosecutor or the defence lawyer to provide critical evidence. Whether the trial is taking place in Halifax, Winnipeg, or Montreal, you must understand that testifying in Canada is not a volunteer opportunity—it is a mandatory legal obligation under the Criminal Code of Canada.

Many civilian witnesses mistakenly believe that if they simply do not want to get involved, they can ignore the document. This is a dangerous misconception. A subpoena compels your attendance at a specific court on a specific date. If you fail to appear without a valid, legally recognized excuse, the presiding judge can issue a bench warrant for your immediate arrest. Navigating the Canadian court system can be confusing, but understanding your rights and responsibilities will help you fulfill your duty with minimal disruption to your daily life.

Step-by-Step Process for Responding to a Subpoena in Canada

Receiving a subpoena means your testimony is considered crucial to a federal indictable offence or summary conviction trial. 📋 Taking immediate, organized action will protect your legal standing and help you prepare for the courtroom.

Step 1: Review the Subpoena Details Carefully

Read the document from top to bottom. It will state exactly who is calling you as a witness (the Crown or the Defence), the name of the accused, the courthouse address, and the precise date and time you must appear. It may also include a “subpoena duces tecum,” which is a Latin term meaning you must bring specific physical evidence with you, such as financial records, emails, or photographs.

Step 2: Contact the Issuing Lawyer

Do not simply wait in silence until the trial date. ☎️ Call the lawyer or Crown prosecutor whose name is listed on the subpoena. Introduce yourself and confirm you received the document. This is your opportunity to ask what topics you will be questioned about, how long the trial is expected to last, and whether you will be needed on the very first day, as witnesses are often placed “on call” to avoid waiting in the hallway for hours.

Step 3: Arrange Time Off Work

Under Canadian labour laws, your employer is legally required to give you time off to testify in court. You cannot be fired or disciplined for obeying a federal subpoena. Provide your HR department or manager with a copy of the subpoena as soon as possible. Keep in mind that employers are generally not required to pay your regular salary while you are away, unless specifically outlined in your collective agreement or employment contract.

Step 4: Attend Court and Testify

On the day of the trial, arrive early and dress professionally. 👤 You will likely wait in a witness room outside the main courtroom, as witnesses are not allowed to hear other people’s testimony. When called to the stand, you will swear an oath or make a solemn affirmation to tell the truth. Answer the questions clearly, honestly, and without exaggerating. If you do not remember a detail, simply say “I do not recall.”

How Much Does it Cost in Canada?

You do not have to pay legal fees to testify, but you may incur out-of-pocket expenses. Fortunately, Canadian courts provide small reimbursements. In 2026, you should be aware of the following financial aspects in CAD:

  • Daily Witness Fee: Depending on the province handling the federal trial, you will receive a small tariff for your time, usually between $20 and $50 CAD per day. Expert witnesses (like doctors) receive much higher specialized rates.
  • Travel and Mileage: You can claim mileage (typically around $0.30 to $0.50 CAD per kilometre) if you are driving, or receive reimbursement for economy public transit and flights if you must travel from another city.
  • Accommodation and Meals: If the trial requires an overnight stay, the Crown or issuing party will arrange and pay for a standard hotel room and provide a modest daily meal allowance.
  • Independent Legal Advice: If you fear your testimony might incriminate you, hiring your own criminal defence lawyer for consultation will cost between $300 and $800 CAD for an initial review.

How Long Does the Process Take?

Court schedules are notoriously unpredictable. ⏱️ While your testimony might only take 30 minutes, you may be required to sit in the courthouse waiting room for the entire day. For complex federal offences like major fraud or drug trafficking, trials can stretch for weeks, and you may be placed on standby for several days before you are actually called to the stand. Always confirm your schedule with the Crown prosecutor.

Comparison: Voluntary Police Interview vs Subpoena

FactorVoluntary Police InterviewCourt Subpoena
Is Attendance Mandatory?No (You can decline)Yes (Legally required)
Who Issues It?RCMP or Local PoliceA Judge or Justice of the Peace
Consequence of IgnoringNoneBench warrant for your arrest
LocationPolice Station or PhoneFormal Courtroom

Frequently Asked Questions (FAQ)

What if I am too sick to attend court on the specific date?

You cannot simply stay home. You must immediately contact the lawyer who issued the subpoena and provide a formal, detailed doctor’s note explaining why you are medically unfit to attend. The judge will ultimately decide whether to excuse you or adjourn the trial.

Can I be forced to testify against my spouse?

Yes. Under Section 4(2) of the Canada Evidence Act, a spouse is a competent and compellable witness for the prosecution in all criminal cases. This means you can be legally subpoenaed and forced to testify in court against your husband or wife. The only remaining protection is the “marital communications privilege” under Section 4(3), which means you cannot be forced to disclose the confidential content of private conversations you had with your spouse during the marriage. However, you must still testify about anything else you observed, heard, or did.

What happens if I tell a lie on the witness stand?

Lying under oath is a severe federal offence called perjury. In Canada, a perjury conviction can carry a maximum penalty of up to 14 years in a federal penitentiary. You must always tell the complete truth to the best of your recollection.

Will the court reimburse me for lost wages?

Generally, no. The Canadian justice system does not compensate civilian witnesses for the regular salary they lose while attending court. You will only receive the standard daily witness tariff, which is typically much lower than a day’s wages.

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