Possession means having a controlled substance for your own use. Trafficking means selling, giving, transporting or delivering it to someone else, or offering to. "Possession for the purpose of trafficking" is somewhere in between: you had the drugs and the Crown says you meant to pass them on. The difference can mean a fine instead of years in custody.
Many people are surprised to learn that they are charged with trafficking when they never sold anything. Others are charged with possession for the purpose of trafficking because of what police found alongside the drugs, not because of the drugs themselves. This article explains how Alberta courts draw the line and what evidence usually decides it.
What is the legal difference between possession and trafficking?
Both offences are in the federal Controlled Drugs and Substances Act (CDSA).
- Possession (s. 4(1)): having a Schedule I, II or III substance without legal authority.
- Trafficking (s. 5(1)): trafficking in a substance, or offering to.
- Possession for the purpose of trafficking (s. 5(2)): having a substance for the purpose of trafficking it.
"Traffic" is defined broadly in section 2 of the CDSA. It includes selling, administering, giving, transferring, transporting, sending or delivering a substance. No money has to change hands. Passing a pill to a friend at a party can meet the legal definition.
"Possession" also has a legal meaning that is wider than the everyday one. Under section 4(3) of the Criminal Code, you can be in possession of something you are not holding if you knowingly keep it somewhere, for example in your car or your room. You can also be in joint possession if someone else holds it with your knowledge and consent. In every case, the Crown must prove knowledge of the substance and a measure of control over it.
Why does the charge matter so much?
Because the penalties are very different. The maximums depend on both the offence and the schedule the substance falls under.
| Offence | Schedule I (e.g., fentanyl, cocaine, methamphetamine) | Schedule III (e.g., psilocybin, LSD) |
|---|---|---|
| Possession, s. 4 | Hybrid. Up to 7 years if the Crown proceeds by indictment | Hybrid. Up to 3 years by indictment |
| Trafficking or possession for the purpose, s. 5 | Indictable only. Maximum of life imprisonment | Hybrid. Up to 10 years by indictment |
These are maximums, not typical sentences. Actual sentences depend on the substance, the quantity, whether the trafficking was commercial and your personal circumstances. In R v Parranto (2021), the Supreme Court of Canada upheld the Alberta Court of Appeal's approach to sentencing for large-scale fentanyl trafficking. The court recognized that sentences for commercial fentanyl trafficking should reflect the drug's danger.
Mandatory minimum sentences for CDSA offences were repealed in 2022. Our article on mandatory minimum sentencing in Alberta covers that change. The repeal means that community-based sentences, including conditional sentences, are available in more drug cases than before. They are still far more realistic for a possession conviction than for a trafficking conviction.
What evidence do police use to allege trafficking?
In many cases, nobody saw a sale. The Crown builds a case from circumstantial evidence and asks the court to infer that the drugs were meant for others. The common indicators are:
- Quantity. More than a person would normally use in a short period.
- Packaging. Drugs divided into individual portions, flaps or baggies of similar weight.
- Scales and packaging materials. Digital scales, empty baggies, cutting agents.
- Cash. Especially large amounts in small denominations, found together with the drugs.
- Phones. Multiple phones, or messages that appear to arrange sales ("debt lists" or "dial-a-dope" texts).
- The absence of use items. No pipes, needles or other paraphernalia suggesting personal use.
- Location and circumstances. Where the arrest happened and what the person was doing.
No single factor is conclusive. Someone who buys a larger amount to save money, or to last longer, may fit some of these indicators without trafficking. The court looks at all the evidence together.
What role does a police "drug expert" play?
In many possession-for-the-purpose cases, the Crown calls a police officer qualified as an expert in drug use and distribution. The officer gives an opinion on whether the quantity, packaging and other items are consistent with personal use or with trafficking.
This evidence is often central, and it can be challenged. A defence lawyer may question:
- whether the officer is properly qualified to give the particular opinion
- whether the opinion considers heavy personal use or bulk buying
- whether the officer's assumptions about "typical" use are supported
- whether the officer is simply repeating the facts of the case back as an opinion
Courts are expected to act as gatekeepers for expert evidence. An opinion that goes further than the evidence allows can be limited or given little weight.
Is sharing drugs or buying for a friend trafficking?
It can be. Because "traffic" includes giving and delivering, sharing drugs with others can technically meet the definition, even without any profit.
There is an important exception. In R v Greyeyes (1997), the Supreme Court of Canada held that a person who helps a buyer purchase drugs, acting only for the purchaser, is not automatically a trafficker. A purchaser is not a trafficker simply because they bought. Whether someone was acting as the buyer's agent or as part of the supply chain is a fact-specific question. It can make a real difference to the charge.
What are the common defences to a trafficking charge?
Every case turns on its own facts, but defences often involve one or more of the following:
- Charter challenges to the search. If police searched a vehicle, home or phone without lawful authority, the evidence may be excluded under section 24(2) of the Charter. See search warrants and privacy rights in Alberta.
- Knowledge and control. The drugs were found in a shared vehicle or home, and the Crown cannot prove they were yours.
- Purpose. The evidence is consistent with personal use, not trafficking.
- Continuity and analysis. Gaps in how the drugs were handled, weighed or tested.
- Identity. In cases built on phone records or surveillance, whether the accused was actually the person involved.
How can a trafficking charge be reduced?
Not every case goes to trial. Once disclosure has been reviewed, it is common for defence counsel and the Crown to discuss resolution. In the right case, a charge of possession for the purpose of trafficking can be resolved by a guilty plea to simple possession. That changes the sentencing range completely.
Whether that is available depends on the strength of the Crown's evidence, especially on the "purpose" element, and on any Charter issues in the case. It also depends on what the defence can put forward about the person charged, such as treatment, employment and community support.
This is why the early stages matter. Decisions made before disclosure, including any statement to police, can limit these options. Our guide to what happens after a drug charge in Alberta explains the process step by step.
Frequently asked questions
Can I be charged with trafficking if I never sold anything? Yes. Trafficking includes giving, transferring, transporting and delivering, and offering to do any of those. No sale or profit is required.
How much of a drug makes it trafficking? There is no fixed amount in the law. Quantity is one factor among several, alongside packaging, scales, cash and phone evidence. A modest quantity with packaging and sale messages can support a trafficking charge. A larger quantity with no other indicators may not.
What if the drugs were in a shared car or apartment? The Crown must prove you knew about the drugs and had some control over them. Being nearby is not enough on its own. Shared spaces often raise real doubt on this point.
Is trafficking cannabis still a crime in Alberta? Cannabis is no longer under the CDSA, but the Cannabis Act makes it an offence to sell or distribute cannabis outside the legal system, and to give it to anyone under 18. Those charges are serious, but they are separate from CDSA trafficking.
Can possession for the purpose of trafficking be reduced to possession? Sometimes. It depends on the evidence of purpose and on any Charter issues. This is usually discussed with the Crown once disclosure has been reviewed.
Will I go to jail for a trafficking charge? It depends on the substance, the quantity, whether the activity was commercial and your personal circumstances. Trafficking Schedule I drugs is treated very seriously in Alberta. Get legal advice before making any decisions.
Speak with an Edmonton drug trafficking lawyer
The difference between possession and trafficking is often the most important question in a drug case, and it is frequently decided by evidence that can be tested. If you have been charged, Cambria LLP can review the Crown's evidence and explain your options.
Learn more about Drug Offences · Call 780-540-8100 for a free consultation.
Related reading
- Charged With a Drug Offence in Alberta: What Happens Next
- Search Warrants and Privacy Rights in Alberta
- Conditional Sentences in Alberta: How House Arrest Works
- Criminal Law in Edmonton
This article provides general information about Alberta law and is not legal advice. Every case depends on its own facts.
