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Céline Dostaler
Can You Be Charged for Someone Else’s Crime? The Law of Party Liability in Canada
“I didn’t do anything. I was just there.”
This is something criminal defence lawyers hear all the time—and for good reason. Many people are shocked to find out that they can be charged with a crime even if they didn’t physically commit it. In Canadian law, this is known as party liability.
Under the Criminal Code of Canada, you can be found just as guilty as the person who committed the offence if you assisted, encouraged, or planned the crime—even if you never touched a weapon or stole a thing. In this blog, we’ll explain the legal concepts of aiding, abetting, and common intention, how prosecutors prove complicity, and what you need to know if you’re facing a charge related to someone else’s actions.
What is Party Liability in Canadian Criminal Law?
Party liability refers to the legal principle that someone can be criminally responsible for a crime committed by another person if they participated in or helped facilitate the offence.
Under sections 21 and 22 of the Criminal Code, a person is considered a “party” to an offence if they:
- Aid: Provide help to someone committing a crime (e.g., acting as a lookout).
- Abet: Encourage someone to commit a crime (e.g., cheering someone on during an assault).
- Form a common intention: Agree in advance to commit a crime together (e.g., planning a robbery as a group).
This means you don’t have to be the main actor to face the same charges—and in many cases, the same penalties.
Key Sections of the Criminal Code
Section 21(1) – Aiding and Abetting
“Everyone is a party to an offence who… does or omits to do anything for the purpose of aiding any person to commit it; or abets any person in committing it.”
Section 21(2) – Common Intention
“Where two or more persons form an intention in common to carry out an unlawful purpose…and to assist each other…each of them is a party to every offence committed…if the offence was a probable consequence…”
Section 22 – Counselling
“Everyone who counsels another person to commit an indictable offence is a party to that offence, even if the crime is not committed.”
In short, you can be found guilty of a crime you didn’t physically carry out, based solely on your involvement in its planning, encouragement, or facilitation.
Examples of Party Liability: How It Applies in Real Life
1. Getaway Driver
You agree to drive your friend to a convenience store. You know they’re planning to rob it, and you wait in the car while they go inside with a weapon. Even though you never enter the store, you can be charged with robbery as a party to the offence—because you aided the crime by driving and fleeing the scene.
2. Lookout
You act as a lookout during a break-and-enter. Your role is to warn others if police are nearby. You don’t enter the property or steal anything. Still, your participation makes you a party to the break-and-enter and possibly theft.
3. Group Assault
You and your friends surround someone in a park. Only one of you throws the punch, but you were there encouraging them or preventing the victim from leaving. You could be charged with assault or assault causing bodily harm as a party to the offence.
4. Shared Plan Gone Wrong
You and a friend plan to rob a home. You both know it’s risky. Your friend brings a weapon—even if you didn’t want violence. During the robbery, the homeowner is assaulted. If that injury was a foreseeable consequence of the plan, you could be charged with aggravated assault or even manslaughter as part of a common intention.
How Do Prosecutors Prove Party Liability?
To convict someone as a party to a crime, the Crown must prove:
- The main offence was committed (by someone else).
- You participated in the crime in one of the following ways:
- Helped carry it out (aid),
- Encouraged it (abet),
- Formed a plan with others to commit it (common intention),
- Counseled the crime.
- You knew or intended that your actions would help carry out the offence.
This means prosecutors don’t need to prove you did the act yourself. Instead, they focus on:
- What you knew at the time,
- What you said or did before, during, or after the crime,
- Whether you had a shared purpose or were helping in some way.
Examples of evidence used by the Crown include:
- Text messages, calls, or social media messages showing planning or agreement,
- Surveillance footage or eyewitness testimony,
- Statements made to police or friends,
- Physical evidence like fingerprints or DNA placing you at the scene.
What if You Didn’t Know What Was Going to Happen?
This is a key area of defence. You must have known or intended that a crime was going to be committed. For example, if you gave someone a ride but didn’t know they were carrying drugs or planning a robbery, intent may be missing.
Your defence lawyer will focus on:
- Whether you had knowledge of the offence,
- Whether you participated voluntarily,
- Whether the offence committed was foreseeable in a shared plan.
Why Legal Advice Is Crucial in Party Liability Cases
Being charged as a party to a crime is not a minor technicality. You may be facing the same sentence as the person who physically committed the offence—even life in prison in serious cases.
That’s why it’s critical to:
- Speak to a criminal defence lawyer immediately,
- Avoid making any statements to police,
- Understand what evidence the Crown may rely on to prove your involvement.
A skilled lawyer can challenge the mens rea (intent), the scope of your involvement, or seek to sever your case from others if you were not directly involved in the same way.
Conclusion: You Can Be Charged for Someone Else’s Crime—But You Still Have a Defence
Canadian law holds people accountable for crimes they help commit or plan—but the law also requires that your intent and knowledge be proven beyond a reasonable doubt. If you’re facing charges as a party to an offence, don’t assume the case is hopeless. You have legal rights and the ability to fight back with an experienced criminal defence lawyer.
Celine Dostaler, criminal defence lawyer in Ottawa, has extensive experience defending clients charged under party liability provisions. She offers strategic, hands-on defence tailored to your specific situation.
Charged as a party to an offence? Protect yourself now. Contact Celine Today
