The short answer
Many drug cases are won or lost on the legality of the search. Section 8 of the Charter protects everyone in Canada against unreasonable search and seizure. If police searched unlawfully, a judge can exclude the drugs as evidence under s. 24(2), and without the drugs the prosecution often cannot continue. That is why every step of the stop, detention and search deserves careful review.
Charged with a drug offence?
When police can search
Police generally need legal authority to search a person, a car, a home or a phone. That authority can come from a warrant issued by a justice on reasonable grounds, a search connected to a lawful arrest, your informed and voluntary consent, or certain urgent situations recognized by law. A search that goes beyond its legal basis, even if it starts lawfully, can breach s. 8.
Car searches
A traffic stop does not automatically allow police to search your car. Officers often point to things like the smell of drugs, nervous behaviour or inconsistent answers. However, these factors are often not enough on their own, and the court looks closely at what the officer actually observed and why the search was carried out. Searches of passengers raise their own issues, because a passenger's connection to items in the car may be limited.
Home searches
Police almost always need a warrant to search a home, because people have the highest expectation of privacy there. The information used to obtain the warrant, including tips from confidential informants, can be challenged. If the information was unreliable, incomplete or misleading, the warrant may not have been properly issued.
Phone searches
Phones usually need a warrant, because they contain large amounts of private information. A search of a phone as part of an arrest is tightly limited. Messages are often the main evidence in trafficking cases, so how police got into the phone, and what they looked at, can decide the outcome.
Challenging a search warrant
When police rely on a warrant, the defence can ask to review the information that was put before the justice. If parts of that information were inaccurate or came from an unreliable source, the judge may remove those parts and decide whether the remaining information could still have supported the warrant. In some cases, the defence can also ask to question the officer who swore the information.
Your other Charter rights
- Section 9: You are protected against arbitrary detention.
- Section 10(a): You have the right to be told promptly why you are being detained.
- Section 10(b): You have the right to speak to a lawyer without delay, and to be told about that right.
Breaches of these rights can also lead to evidence being excluded.
How the court decides whether to exclude evidence
Finding a Charter breach does not automatically lead to exclusion. Under s. 24(2), the judge asks whether admitting the evidence would bring the administration of justice into disrepute. The judge looks at how serious the police conduct was, how much the breach affected your rights, and society's interest in a trial on the merits. Serious or deliberate breaches are more likely to lead to exclusion.
What to do if police want to search
- Stay calm and do not physically resist, even if you think the search is unlawful.
- Say clearly that you do not consent to the search.
- Ask whether you are being detained, and why.
- Ask to speak to a lawyer, and do not answer questions until you have.
For example, saying "I don't consent to a search" does not stop police if they have a warrant. However, it makes it much harder for them to rely on consent later in court.
Police dogs
When a police dog sniffs a person, bag or car for drugs, that sniff is a search under the Charter. Police generally need a reasonable suspicion that drugs will be found before using a dog in this way. If police used a dog without that basis, the search may have breached s. 8.
Traffic stops used for other purposes
Police can stop drivers under Ontario's Highway Traffic Act to check licences, insurance, sobriety and the condition of the vehicle. However, a traffic stop cannot be used as an excuse to search for drugs without proper grounds. If the stop quickly turned into a drug investigation, the reason for that change will be examined closely in court.
Statements and the right to silence
You have the right to remain silent when police question you, and anything you say can be used as evidence. Many people try to explain the situation at the roadside or in a police station, but those explanations can be misunderstood or used to prove knowledge. It is usually safer to give your name when required and then ask to speak to a lawyer.
How a Charter application works
- Notice: Your lawyer files a written application explaining the breach and the remedy being sought.
- Evidence: The officers involved are usually questioned at a hearing called a voir dire.
- Decision: The judge decides whether there was a breach and, if so, whether the evidence should be excluded.
If key evidence is excluded, the prosecutor may withdraw the charge or be unable to prove the case at trial.
Searches of your body
Police can search you after a lawful arrest, but the search must be connected to the reason for the arrest and carried out in a reasonable way. A strip search is much more intrusive. Police need specific grounds to believe it is necessary, and it must be done privately and respectfully. Strip searches that do not meet these standards can breach the Charter.
Possible outcomes
No conviction
These outcomes end the case without a criminal conviction.WithdrawalThe Crown drops the charge.
Withdrawal: The prosecutor may withdraw the charge once key evidence is excluded.
Depends on the case
These steps can lead to either result.Exclusion of evidenceThe court keeps evidence out of the case.
If the search was unlawful, the judge may exclude the drugs or other evidence.
ResolutionThe parties discuss resolving the charge.
A strong Charter argument can also lead to a better plea offer.
TrialThe court hears evidence and decides guilt.
If the evidence is admitted, the case continues to trial on the other issues.
Even when a search is upheld, the evidence still has to prove the charge, for example whether drugs were held for possession for the purpose of trafficking or only for personal use.
How we can help
We can review every step of the stop, the detention and the search, and bring a Charter application to exclude the evidence. Call (647) 223-1980 for a free consultation.
Frequently asked questions
Can police search my car if they smell drugs?
It depends on the circumstances, and courts look closely at whether the officer had proper grounds.
If the search was illegal, is my case over?
Not automatically, because a judge decides whether to exclude the evidence under s. 24(2).
Can I refuse to unlock my phone?
Generally, you do not have to help police search your phone, but get legal advice about your situation.
Do I have to consent to a search?
You do not have to consent, and any consent must be voluntary and informed to be valid.
Can police search me just because I was in a car with drugs?
Being present in the car is not enough on its own. Police need a lawful basis to search you personally.
What if police found drugs during a search for something else?
Police can sometimes seize items they find in plain view during a lawful search. However, the original search must have been lawful, and police must have stayed within its limits.
More drug offences guides
6 guides- CDSA 5(2): Possession for the Purpose of Trafficking
- CDSA 5(1) Drug Trafficking Charges | Brampton Lawyer
- Simple Drug Possession and Diversion in Ontario
- Drug Schedules and Penalties in Canada | Brampton
- Drug Importing and Production Charges | Brampton Lawyer
- Joint Possession and Trafficking Amounts in Canada



