Heroin
Heroin, also known as H, China white, brown, smack, falls within Schedule I of the CDSA. You could be sent to jail, even if it is your first offence.
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Plain-Language Summary
Heroin: In Canada, Heroin falls under the falls under Schedule I of the Controlled Drugs and Substances ActCanada's federal drug control statute. The courts can come down hard on offenders, with jail time possible for a first offenceA criminal activity, especially if there are aggravating factors such as the involvement of minors. The instant high and the short blissful sensation that heroin offers make it a sought-after street drug, even though the withdrawal symptoms can be unpleasant.
What is Heroin?
Heroin is a highly addictive drug made from morphine derived from the opium poppy.
Pure heroin is a fine, white, bitter-tasting powder. What you buy on the street is often mixed with substances that look the same, including sugar, starch and quinine (a drug made from cinchona bark). It is increasingly found laced with fentanyl, a more powerful, synthetic opioid.
Street heroin varies in purity, colour and consistency and may look like a white powder, a dark sticky gum or a brown grainy substance. It is most commonly consumed by snorting up the nose, but it can also be smoked (chasing the dragon) or dissolved in water then injected in a vein (mainliningInjecting a substance directly into a vein) or under the skin (skin-poppingInjecting a drug under the skin).
Street Names for Heroin
You may know it better by its street names, which include H, dead on arrival, mud, brown, hero, hell dust, junk, skag, dope, dust, horse, smack and China White.
Short and Long-Term Effects of Heroin
If you inject heroin into a vein, it reaches your brain and produces a euphoric rush within seconds and lasts for only a few minutes. If you smoke or snort it, the effects will be felt just as quickly, but with less intensity. If you inject heroin into a muscle or under the skin, it may take up to 20 minutes to feel the rush. Long-term use can result in impulsive behaviour that is difficult to control, a lack of emotion toward others, suicidal thoughts and memory issues. Physical effects include constipation, irregular menstrual cycles in women, cardiac arrest and insomnia.
If you are injecting heroin, you run the risk of coming into contact with non-sterile needles. The sharing of syringes and other paraphernalia can lead to the spread of infectious diseases such as HIV, and hepatitis B and C. There is also the ever-present risk of overdosing, as users rarely know the actual strength of the drug they are taking.
Legal Status in Canada
Since it falls under Schedule ICommonly characterized as “hard drugs" of the Controlled Drugs and Substances Act, heroin (listed under its formal name of Diacetylmorphine) is treated very seriously by police and the courts. Possessing, selling or producing it is illegal unless specifically authorized under federal regulations — for example, for medical or scientific research purposes.
What is Needed to Convict
To find you guilty of possessing heroin, the Crown must establish beyond a reasonable doubtThe standard that must be exceeded to find someone guilty that you were in possessionHaving knowledge and control of something — not only physically holding it, but also an item kept somewhere else that you know about and control. of the drug. Keep in mind that “possession” is not just limited to the idea that the drug was found on your person or in your car or house. Instead, it means that you had some degree of control and knowledge of the drug.
As a result, you can be found guilty of possession even if the heroin was found at someone else's house or in a friend’s gym bag.
The Crown must also prove that the substance is listed in the CDSA and that you knew what it was. The Crown does not have to prove that you knew the exact law. But if you genuinely did not know what the substance was, that may matter.
Penalties for Heroin Possession
Our courts hand down the harshest sentences for those convicted of a crime involving Schedule I drugs, so you could be looking at jail time even on a first possession offence. When passing sentence, courts will look at how much you possessed and if there were any aggravating factorsAny information or evidence that may result in a heavier sentence involved.
Heroin possession is a hybrid offenceAn offence the Crown can proceed with summarily or by indictment.. On indictment the maximum is 7 years; on summary convictionUsed for lesser offences the maximum is a $1,000 fine and/or 6 months for a first offence, or $2,000 and/or 1 year for a subsequent offence. TraffickingInfluencing the movements of a person in order to exploit them, possession for the purpose of trafficking, and importing or exporting are indictable offences each carrying a maximum of life imprisonment.
November 17, 2022
Update: Bill C-5: Mandatory Minimum Penalties Repealed.
Possible Penalties
These are maximum sentences. Actual sentences depend on the facts, criminal history, and any mitigating or aggravating circumstances.
Possession — CDSA s. 4(1), Schedule I substance
HybridNo mandatory minimum currently applies. Offence: s. 4(1). Punishment: s. 4(3).
Trafficking or possession for trafficking — CDSA s. 5, Schedule I
Indictable onlyNo mandatory minimum currently applies.
Importing or exporting — CDSA s. 6, Schedule I
Indictable onlyNo mandatory minimum currently applies.
Production — CDSA s. 7, Schedule I
Indictable onlyNo mandatory minimum currently applies.
What these words mean
- Indictable
- The more serious way to prosecute an offence. It can carry higher maximum penalties.
- Summary conviction
- The less serious, usually faster way to prosecute an offence, with lower maximum penalties.
- Hybrid
- An offence the Crown can prosecute either way — by indictment or by summary conviction.
- Summary only
- Summary-only offences are prosecuted by summary conviction. The Criminal Code sets the maximum penalty in the specific offence section.
- Crown election
- The Crown prosecutor’s choice of which way to proceed on a hybrid offence.
Possible Defences and Legal Issues
This page covers more than one section. Possible defences and legal issues are set out by section below.
Heroin — CDSA ss.4, 6 and 7
Section 4(1) of the Controlled Drugs and Substances Act (CDSA) opens with the words “Except as authorized under the regulations” before setting out the possession offence. Sections 6 (importing, exporting, and possession for export) and 7 (production) use the same authorization language. This means a valid authorization — such as a prescription, licence, permit, or other legal authorization — may matter, but only if it covers that substance and that activity. The Crown still has to prove the parts of the offence, including that the substance is listed in the CDSA (heroin is a Schedule I substance) and that the person knew what it was.
Heroin — CDSA s.5 (Trafficking)
Section 5 of the CDSA does not list a special defence for trafficking or possession for the purpose of trafficking. The Crown still has to prove the parts of the offence: that the person trafficked the substance or possessed it for the purpose of trafficking, that the substance is listed in the CDSA, and that the person knew what it was. The Crown does not usually have to prove that the person knew the exact law.
Possible issues may still depend on the facts, the evidence, and whether the Crown can prove each part of the offence. This is general legal information, not legal advice.
Common Legal Terms
Terms marked with a dotted underline in the article above are defined here and available in the full site glossary.
- Aggravating factors Glossary entry →
Any information or evidence that may increase the crime's severity, resulting in a heavier sentence.
- Hybrid offence Glossary entry →
A hybrid offence is an offence where the Crown can choose whether to proceed by summary conviction or by indictment. The choice can affect the procedure, possible penalties, and sometimes the court where the case is heard.
- Mainlining Glossary entry →
Injecting a substance directly into the bloodstream through a vein, which leads to an instant high but it is also the riskiest method to consume drugs in terms of overdosing.
- Possession Glossary entry →
In criminal law, possession means having knowledge and control of something. It does not only mean physically holding an item — it can include an item kept somewhere else, or in someone else's keeping for your use or benefit, that you know about and have control over.
- Reasonable doubt Glossary entry →
The Supreme Court of Canada has said that reasonable doubt “falls much closer to absolute certainty than to proof on a balance of probabilities” and “that something less than absolute certainty is required, and that something more than probable guilt is required."
- Schedule I Glossary entry →
Schedule I drugs are commonly characterized as “hard drugs.” They include street drugs such as heroin, cocaine, and opium and numerous pharmaceutical-grade drugs such as oxycodone and morphine. Schedule I drugs show a high risk of dependency. See Schedule I of the Controlled Drugs and Substances Act.
- Skin-popping Glossary entry →
The administration of a street drug under the skin, which allows it to diffuse slowly, extending the duration of the feeling of euphoria.
- Summary conviction Glossary entry →
Summary convictions are used for lesser offences with penalties, fines and short jail time. They reflect the majority of offences as defined in the Code.
- Trafficking Glossary entry →
The recruitment, transportation, harbouring and influence over the movements of a person in order to exploit them, typically through sexual exploitation or forced labour. It is often described as a modern form of slavery.
Legal sources
The official statute section(s) this page is based on. Always confirm against the official source before relying on it.
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Controlled Drugs and Substances Act s. 4 Possession of a substance included in Schedule I, II or IIILast reviewed by CCH: 2026-07-05View official source ↗
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Controlled Drugs and Substances Act s. 5 Trafficking and possession for the purpose of traffickingLast reviewed by CCH: 2026-07-05View official source ↗
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Controlled Drugs and Substances Act s. 6 Importing and exportingLast reviewed by CCH: 2026-07-05View official source ↗
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Controlled Drugs and Substances Act s. 7 Production of a substanceLast reviewed by CCH: 2026-07-05View official source ↗
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Controlled Drugs and Substances Act s. Schedule I Item 1(10) — Diacetylmorphine (heroin)Last reviewed by CCH: 2026-07-05View official source ↗
Government References
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General legal information only. Not legal advice. We do our best to keep this page accurate and up to date, but criminal law can change and every case depends on its facts. Check the review date and consult the Criminal Code or a criminal defence lawyer before relying on this information.
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Criminal Code Help explains selected Criminal Code offences and related legal concepts in plain language. The goal is to help readers understand the general meaning of the law without having to read the full statutory text.
This page is a simplified summary. It does not include every exception, definition, court interpretation, evidentiary issue, Charter issue, sentencing factor, or procedural rule that may apply in a real case.
Legal information, not legal advice
This page is general legal information only. It is not legal advice and should not be relied on as advice about any specific charge, investigation, court file, or personal situation.
Possible defences and legal issues depend on the facts, the evidence, the exact charge, current Canadian law, and the province or territory where the case is being handled. If you are facing a criminal charge or researching a real legal problem, speak with a criminal defence lawyer in your province or territory.