Police Stops and Detention
Written in plain language for general understanding. This is educational content, not legal advice. Based on Canadian federal statutes and official sources.
What is this right?
Sections 9 and 10 of the Charter protect you from arbitrary detention. The Supreme Court set out the rules in R. v. Mann (2004) and R. v. Grant (2009).
Investigative detention means police can briefly hold you if they have reasonable grounds to suspect you are connected to a specific crime. "Detention" happens whenever your liberty is suspended by physical or psychological restraint.
Random vehicle stops are constitutional under R. v. Ladouceur — police can pull you over to check your licence, sobriety, and vehicle condition.
Carding (random street checks) is controversial. Several provinces have introduced rules to limit when police can stop and question people outside of an investigation.
When does it apply?
These rights apply to everyone in Canada.
- Investigative detention requires police to have reasonable suspicion tied to a specific crime.
- Traffic stops do not need specific suspicion — they are allowed for general road safety.
- Carding — if you are not being detained, you are generally not required to stop or answer questions.
What should you do?
- Ask: "Am I being detained, or am I free to go?"
- If you are free to go, you may leave calmly.
- If you are detained, ask why and request to speak to a lawyer.
- During a traffic stop, provide your licence, registration, and insurance.
What should you NOT do?
- Don't walk away if police say you are detained — this can lead to further charges.
- Don't assume a traffic stop gives police the right to search your car — it does not.
- Don't lie about your identity if you are lawfully required to identify yourself.
- Don't confuse a casual chat with detention — ask the key question: "Am I free to go?"
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