Unlike most of the charges discussed on this site, drug offences are not prosecuted under the Criminal Code at all. Instead, they fall under a separate federal law, the Controlled Drugs and Substances Act, often referred to as the CDSA. This guide explains how simple possession is defined under section 4 of the CDSA, how penalties vary depending on the substance involved, how cannabis is treated differently, and what generally happens after this kind of charge in Ontario. It is general legal information, not legal advice about a specific case.
What Is Simple Possession?
Section 4(1) of the CDSA prohibits possessing a substance listed in Schedule I, II, or III of the Act without the authorization required by law, such as a valid prescription. "Simple possession" generally refers to possessing a controlled substance for one's own personal use, as opposed to possessing it with the intent to sell or share it with others, which is prosecuted as possession for the purpose of trafficking instead, a much more serious charge.
The substance itself, not the person's intentions or the amount involved in isolation, generally determines which offence applies. A person found with a very small quantity intended entirely for personal use is still charged under the same simple possession provision as someone found with a somewhat larger amount, provided there is no additional evidence pointing toward an intent to sell or share the substance.
Schedules and Why They Matter
The CDSA organizes controlled substances into schedules, and which schedule a substance falls into significantly affects the maximum penalty for possessing it. Schedule I includes substances such as opioids, cocaine, and methamphetamine. Schedule III includes certain other controlled substances treated somewhat differently under the Act. Because the applicable penalty depends entirely on which schedule a substance falls into, correctly identifying the substance at issue, often through laboratory analysis, is a foundational part of any drug possession case.
Classification and Penalties
Simple Possession (Section 4, CDSA) at a Glance
- Classification – Schedule I substances
- Hybrid offence (Crown elects summary conviction or indictment)
- Maximum penalty – Schedule I, indictment
- Up to 7 years imprisonment
- Maximum penalty – Schedule I, summary conviction
- Up to 6 months and/or a $1,000 fine for a first offence; up to 1 year and/or a $2,000 fine for a subsequent offence
- Maximum penalty – Schedule III substances
- Up to 3 years on indictment, or a summary conviction option
- Mandatory minimum sentence
- None for simple possession
These figures reflect the CDSA as of this page's last update. Actual sentences for simple possession are frequently well below these maximums, and diversion or treatment-focused resolutions are common. A criminal lawyer can confirm the current state of the law for a specific substance and case.
Cannabis Is Treated Differently
Cannabis was removed from the schedules of the CDSA when the separate Cannabis Act came into force in October 2018, legalizing and regulating cannabis for adults. As a result, cannabis possession within the legal limits set out in the Cannabis Act is not a criminal offence at all, and cannabis-related conduct that does remain illegal, such as possessing an amount over the legal limit or unlicensed cultivation beyond what is personally permitted, is now prosecuted under the Cannabis Act rather than the CDSA. This is an important distinction, since many people still associate cannabis with the broader category of "drug charges" covered on this page, even though the applicable law has changed significantly since 2018.
Ontario's approach to simple possession has shifted over time toward treating it, in many cases, as a health issue rather than purely a criminal one, including through diversion programs and Crown policies that favour alternatives to prosecution for personal-use possession in appropriate circumstances. This does not mean simple possession is legal, only that prosecution is not always the automatic outcome.
How This Differs From Trafficking
The distinction between simple possession and possession for the purpose of trafficking often comes down to circumstantial evidence, such as the quantity of the substance, whether it was divided into smaller packages, the presence of scales, cash, or packaging materials, and any communications suggesting an intent to sell or share the substance. A relatively large quantity, on its own, can sometimes support an inference of trafficking intent even without direct evidence of a sale. See our drug trafficking page for more on how that offence is prosecuted.
A valid prescription is a complete answer to a possession charge for that specific substance in that specific circumstance. Anyone charged with possession of a substance they hold under a legitimate prescription should raise this with a lawyer immediately, since it can resolve the matter quickly.
Possible Defences
Drug possession cases often turn on whether the Crown can prove the person actually knew they possessed the substance and had control over it, since possession requires more than the substance simply being nearby, particularly in shared spaces such as a vehicle or residence with multiple occupants. Other issues that frequently arise include whether the substance was properly identified through analysis, and whether the search that led to its discovery was conducted lawfully; an unlawful search can sometimes result in evidence being excluded. See our pages on police searches and search warrants for more on this topic. A criminal lawyer should review the specific disclosure before advising on possible defences.
What Happens After This Charge
Many simple possession charges, particularly involving smaller quantities and a person with no record, do not result in a contested bail hearing, and many people are released directly by police with a future court date. Ontario Crown policies and diversion programs increasingly favour treatment-focused or restorative approaches for personal-use possession, though availability and eligibility depend on the specific circumstances and the Crown's assessment. Where a case proceeds through the court system, it follows the general process described on our first appearance and disclosure pages. See our sentencing overview and criminal records overview for more.
Given the ongoing public health dimensions of substance use, drug possession policy in Canada continues to evolve, including discussion of alternatives to criminal prosecution for personal-use possession in various jurisdictions. Anyone facing a possession charge should get current, specific legal advice rather than relying on general impressions about how these cases are typically handled, since policies and practices can vary by location and change over time.
Frequently Asked Questions
Is drug possession prosecuted under the Criminal Code?
No. Drug offences, including simple possession, are prosecuted under a separate federal law, the Controlled Drugs and Substances Act, not the Criminal Code.
Is cannabis possession still a criminal charge?
Possessing cannabis within the legal limits set by the Cannabis Act is not a criminal offence. Cannabis-related conduct that remains illegal is now prosecuted under the Cannabis Act rather than the CDSA.
What is the difference between possession and possession for the purpose of trafficking?
Simple possession involves having a substance for personal use, while possession for the purpose of trafficking requires evidence of an intent to sell, share, or distribute it. The latter is a much more serious charge with higher penalties.
Can I be charged if the drugs weren't found directly on me?
Possibly, if the Crown can prove you knew about the substance and had some degree of control over it, which can include situations such as a shared vehicle or residence. This is often a contested issue in these cases.
Will a first-time drug possession charge result in a criminal record?
Not necessarily. Many first-time simple possession cases are resolved through diversion, discharges, or other alternatives to a formal conviction, depending on the substance, quantity, and the person's circumstances. A criminal lawyer can give a realistic assessment for a specific case.