In a Canadian criminal trial, a voir dire is a “trial within a trial.” It is a separate legal hearing where the judge temporarily excludes the jury from the courtroom to determine if a specific piece of evidence-such as a police confession or seized drugs-was obtained legally and can be shown to the jury.
Jury trials in Canada are complex, heavily structured proceedings designed to ensure a fair outcome . When an individual is charged with a serious indictable offence-like major drug trafficking in British Columbia, or federal fraud in Ontario-the trial process relies on presenting clear, unbiased evidence. However, what happens if the police violated your Charter rights to get that evidence? You cannot simply let the jury hear a forced confession and then ask them to forget it.
To protect the integrity of the trial, Canadian criminal courts use a procedural tool called a voir dire 📍. Derived from an Old French term meaning “to speak the truth,” a voir dire ensures that highly prejudicial or illegally obtained evidence never reaches the ears of the jury. If your defence lawyer successfully argues a voir dire at the Superior Court of Justice or the Court of King’s Bench, the Crown’s entire case against you could collapse.
Step-by-Step Process of a Voir Dire in Canada
A voir dire can happen at any point before or during a trial. Whether the issue is a breached Section 8 right against unreasonable search and seizure, or the voluntariness of a statement to the RCMP, the process remains consistent.
Step 1: The Defence Raises an Objection
Before the Crown prosecutor attempts to introduce questionable evidence, your criminal defence lawyer will object . For example, if the police found illegal firearms in your car but searched it without a warrant, your lawyer will announce that they are bringing a Charter application to exclude the evidence. The judge will then order a voir dire to resolve the legal dispute.
Step 2: Excusing the Jury
If the trial has already begun and a jury is present, the judge will ask the jury to leave the courtroom and return to the jury room 🚨. This is the most crucial aspect of the voir dire. The jury must not hear the disputed evidence until the judge legally rules that it is admissible. If the jury accidentally hears an excluded confession, it could cause a mistrial.
Step 3: Presenting Evidence in the Trial within a Trial
With the jury gone, the voir dire functions exactly like a mini-trial . The Crown will call witnesses (usually the arresting police officers) to the stand to explain how they obtained the evidence. Your defence lawyer will aggressively cross-examine these officers, looking for inconsistencies, Charter violations, or proof of police misconduct. As the accused, you may even choose to testify during the voir dire to explain your side of the arrest, without giving up your right to remain silent in the main trial.
Step 4: The Judge’s Legal Ruling
After hearing the witnesses and the legal arguments from both law firms, the judge makes a ruling 🤝. If the judge decides the evidence was collected legally (e.g., the confession was voluntary), the jury is brought back in, and the trial resumes with that evidence included. If the judge agrees that your rights were violated under Section 24(2) of the Charter, the evidence is permanently excluded. Often, if a key piece of evidence is excluded, the Crown may have no choice but to withdraw the charges entirely.
Common Reasons for a Voir Dire
Not every piece of evidence requires a trial within a trial. Here are the most common scenarios where a voir dire is mandatory or highly requested.
| Type of Evidence | The Legal Issue | Charter Section Involved |
|---|---|---|
| Police Interrogations | Was the statement voluntary, or were there threats/promises? | Section 7 (Right to Silence). |
| Seized Drugs / Weapons | Did the police have a valid search warrant or grounds? | Section 8 (Search & Seizure). |
| Breathalyzer Results | Was the accused allowed to call a lawyer promptly? | Section 10(b) (Right to Counsel). |
| Hearsay Evidence | Is an out-of-court statement reliable enough to use? | Rules of Evidence (Common Law). |
How Much Does a Voir Dire Cost in Canada?
Because a voir dire is essentially an extra trial, it significantly increases your legal expenses:
- Preparation: Drafting formal Charter applications and reviewing police notes takes substantial time. Lawyers often bill $2,000 to $5,000 CAD just for the preparation.
- Court Time: A voir dire extends the length of your trial. If your lawyer charges a daily trial rate of $1,500 to $3,000 CAD, a three-day voir dire adds thousands to your total bill.
- Total Impact: Complex federal drug or fraud trials involving multiple wiretap voir dires can easily exceed $50,000 to $100,000 CAD in total legal fees.
How Long Does the Process Take?
The timeline of a voir dire depends heavily on what is being contested:
- Simple Voluntariness: Arguing whether a short statement to police at the side of the road was voluntary might take a few hours or a single afternoon.
- Complex Charter Challenges: Challenging a massive RCMP wiretap operation in a conspiracy case can take several weeks of dedicated court time.
- Pre-Trial Applications: To save jury time, judges often schedule voir dires months before the actual jury is even selected.
Frequently Asked Questions (FAQ)
If I testify in a voir dire, can the Crown use it against me later?
Generally, no. Under Canadian law, if you testify during a voir dire to establish a Charter breach, the Crown cannot use that specific testimony to prove your guilt during the main trial in front of the jury.
Are voir dires only used in jury trials?
No. They are also used in judge-alone trials. In a judge-alone trial, the judge hears the disputed evidence, decides if it is admissible, and if they rule it inadmissible, they are legally trained to completely ignore it when determining your guilt.
Is a voir dire open to the public?
Usually, yes. However, the media is strictly prohibited by a mandatory publication ban from reporting on anything said during a voir dire until the jury has delivered its final verdict, preventing the jury from reading about excluded evidence online.
What happens if the judge excludes the main evidence?
If a judge excludes a crucial piece of evidence (like a kilogram of cocaine in a trafficking case), the Crown prosecutor will usually assess if they still have a reasonable prospect of conviction. If they do not, they will invite the judge to acquit you or withdraw the charges.
Can the Crown appeal a voir dire decision?
Yes. If the judge excludes evidence and you are acquitted as a result, the Crown can appeal to the provincial Court of Appeal, arguing that the trial judge made an error in law regarding the Charter.
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