Drug Possession Charges in Ontario

By Robb MacDonald

The Short Answer

Simple possession is an offence under section 4(1) of the Controlled Drugs and Substances Act. Three things are worth knowing immediately:

• Since 2022, a charge is supposed to be the last resort. Parliament added sections 10.1 to 10.5 to the Act, requiring police to consider a warning or a referral before laying an information, and requiring the prosecutor to be of the opinion that those alternatives are inappropriate before proceeding.
• Most contested cases turn on the search, not the drugs. If the search breached section 8 of the Charter, the remedy sought is exclusion of the evidence, and in a possession case excluding the drugs usually ends the prosecution.
• The charge on the paperwork matters enormously. Possession and possession for the purpose of trafficking are different offences with different consequences, and the difference is often argued rather than obvious.

What the Crown Has to Prove

"Possession" is a legal term, defined in section 4(3) of the Criminal Code, and it is wider than having something in your pocket. It covers three situations:

• Personal possession. On you, with knowledge of what it is and some measure of control over it. Both knowledge and control are required, and both must be proved.
• Constructive possession. Knowingly having it in another person's custody, or in any place, for your own use or benefit or that of another. This is what a charge looks like when drugs are found in a glovebox, a shared apartment, or a bag in a car.
• Joint possession. Where one of two or more people has it in their custody with the knowledge and consent of the rest, it is deemed to be in the possession of all of them. Knowledge and consent are the live issues, and mere presence in the same room is not enough.

That last distinction is where a great many cases are actually fought. Being in a vehicle where drugs are found is not, by itself, possession. The Crown has to prove you knew and that you had a measure of control, and where several people had access to the same space that is frequently difficult.

Which Substance, and Which Schedule

The Act sets penalties by schedule rather than by name. For simple possession of a Schedule I substance, which includes cocaine, heroin, fentanyl and methamphetamine, the offence is hybrid: on indictment the maximum is seven years, and on summary conviction a first offence carries a fine of up to $1,000, up to six months in jail, or both. For Schedule II the indictable maximum is five years less a day, with the same summary range.

Cannabis is not prosecuted under this Act. Since 2018 it has been governed by the Cannabis Act, under which an adult may possess up to 30 grams of dried cannabis in public. Exceeding that limit, or possession by someone under 18, remains an offence, but it is a separate regime and the older cannabis possession jurisprudence no longer applies to it.

The Diversion Provisions Most People Have Not Heard Of

This is the most significant recent change in this area and it is routinely overlooked. In 2022, Parliament added a set of provisions to the Act that change how simple possession is supposed to be handled from the outset.

• Section 10.1 sets out a declaration of principles: problematic substance use should be addressed primarily as a health and social issue, and interventions should aim to protect the health, dignity and human rights of people who use drugs.
• Section 10.2(1) provides that a peace officer shall, instead of laying an information for an offence under section 4(1), consider whether it would be preferable to take no further action, to warn the individual, or with their consent to refer them to a program or agency.
• Section 10.3 provides that a prosecution may be commenced or continued only if the prosecutor is of the opinion that a warning or referral, or alternative measures under section 716 of the Criminal Code, would not be appropriate.
• Sections 10.4 and 10.5 require police to keep a record of any warning or referral, and make evidence of that warning or referral inadmissible for the purpose of proving prior offending behaviour in later proceedings.

These are not automatic outcomes and they do not create a right to diversion. But they do mean that whether the alternatives were properly considered is a legitimate question to raise, both with the officer's notes in hand and in discussions with the Crown. Note the wording of section 10.3: it applies to continuing a prosecution, not only to starting one, so the question does not close once the charge has been laid.

Why the Search Is Usually the Whole Case

Section 8 of the Charter protects against unreasonable search and seizure, and a warrantless search is presumptively unreasonable, which puts the burden on the Crown to justify it. In possession files the drugs were almost always found during a traffic stop, a pat-down, a search incident to arrest, or the execution of a warrant, and each of those has legal preconditions that can fail.

The questions that decide these cases are specific. Was the vehicle stop lawful, and did it remain a traffic stop or become an unauthorised investigation? Was there a lawful arrest before the search that was incident to it, given that a search incident to arrest cannot manufacture the grounds for the arrest? Was a protective pat-down for officer safety turned into an evidence-gathering search? Was the warrant supported by an information to obtain that survives scrutiny once the redactions are lifted?

Where a breach is established, the remedy is sought under section 24(2) of the Charter, and the analysis follows R. v. Grant, 2009 SCC 32, which weighs the seriousness of the state conduct, the impact on the accused's Charter-protected interests, and society's interest in a trial on the merits. Reported Canadian decisions, including Grant and the search jurisprudence that has developed since, are freely searchable on CanLII. In a simple possession prosecution, excluding the drugs ordinarily ends the case, because there is nothing else to prove the offence with.

Where Possession Becomes Something Much More Serious

The charge that changes everything is possession for the purpose of trafficking, under section 5(2) of the Act. The physical act is the same. What is added is the purpose, and the Crown proves it by inference from circumstances rather than by direct evidence.

The indicators relied on are familiar: quantity relative to what a user would hold, packaging into separate portions, scales, score sheets or debt lists, multiple phones, volumes of transactional messages, and cash in small denominations. None of these is conclusive on its own, and each is open to an innocent explanation that the disclosure may or may not exclude. The stakes are entirely different: trafficking in a Schedule I substance carries a maximum of life imprisonment, against seven years for simple possession of the same drug. Our page on drug offence defence covers trafficking and production charges in more detail.

Two Practical Points That Catch People Out

Your prosecutor is federal. Offences under the Act are prosecuted by the Public Prosecution Service of Canada, not by the provincial Crown who handles most criminal matters in Ontario. Different office, different policies, and different people to have a resolution discussion with.

A conviction can reach your immigration status. Drug convictions are among the most consequential for permanent residents and foreign nationals, and the exposure rises sharply where the charge is trafficking rather than possession. If you are not a Canadian citizen, say so at the first meeting, because it changes which outcomes are worth pursuing and immigration counsel should be involved early.

Get Advice Before Deciding Anything

Possession files are frequently resolvable without a conviction, whether through the statutory alternatives, a withdrawal once the search is examined, or a program where one fits. What they are not is a foregone conclusion, and pleading guilty at an early appearance to be finished with it forecloses every one of those routes before anyone has read the disclosure.

Robb MacDonald has practised criminal defence for more than twenty years, earned his J.D. at Queen's University in 2006, was called to the Ontario bar in 2007, and trained under Edward Greenspan QC. He is a two time provincial advocacy champion (Arnup Cup, OTLA Cup) and is in court roughly five days a week. Every Ontario lawyer is regulated by the Law Society of Ontario.

If you have been charged, call (416) 315-1505 or email rm@lawintoronto.com. The office is at 130 Spadina Ave, Suite 606, Toronto ON M5V 2L4, and Robb is available day and night. You can also request a confidential consultation.