There is no legal difference between DUI and DWI in Canada; neither term exists in Canadian law.
All such offences are prosecuted under the Criminal Code as
impaired driving offences
, which include alcohol impairment, drug impairment, “over 80,” refusal to comply, and care or control. The terminology people use does not matter; the legal consequencesс are the same and can include a criminal record, licence suspension, and imprisonment.
Many people in Toronto use the terms DUI or DWI interchangeably, assuming they reflect different types of charges. In reality, those terms are imported from U.S. law and have no legal meaning in Canada. This misunderstanding can be dangerous because it often leads people to underestimate how broad and strict Canadian impaired driving laws actually are.
Canadian law does not distinguish between “driving under the influence” and “ driving while impaired .” Instead, all such conduct falls under a unified framework: impaired driving offences under the Criminal Code.
Historically, Canada used terms such as “driving while intoxicated,” but modern legislation has replaced that language with a broader concept of impairment, regardless of the substance involved.
Today, the focus is not on terminology, but on:
If someone is arrested for what is commonly called a DUI, they will typically be charged under one or more offences in Part VIII of the Criminal Code.
These are all criminal offences, regardless of whether someone refers to them as DUI or DWI.
One of the most misunderstood aspects of Canadian impaired driving law is the concept of care or control.
A person can be charged even if:
If police believe the person had the ability to set the vehicle in motion while impaired, that may be enough.
“Many people assume they are safe if they are not driving. In law, that assumption is often wrong. Care or control charges are common and frequently misunderstood.”
—
Jeff Mass
Impaired driving is one of the most strictly enforced offences in Canada, with mandatory minimum penalties.
More serious cases, including repeat offences or accidents, can lead to significant jail time.
Some people believe drug impairment is treated differently from alcohol. Legally, both fall under the same framework.
However, drug-impaired cases often rely on:
This makes them highly fact-driven and often contestable.
Refusing to provide a breath sample is not a way to avoid charges; it is a separate criminal offence.
In many cases, refusal charges carry penalties equal to or more severe than those for impaired driving.
“Refusal cases are often more complex than people expect. What seems like a simple decision in the moment can carry the same — or greater — consequences than a conviction for impaired driving.”
—
Heather Spence
Whether someone calls it DUI, DWI, or impaired driving has no legal impact. What matters is:
Impaired driving cases are often defended on technical and evidentiary grounds, not terminology.
Impaired driving cases are highly technical. Evidence may include:
Errors in any of these areas can significantly affect the outcome, but only if identified early.
Early legal advice allows counsel to:
If you have been charged with what is commonly called a DUI in Toronto, you are facing a criminal offence with serious and lasting consequences.
The defence lawyers at Mass Tsang have extensive experience handling impaired driving cases across the Greater Toronto Area. Their approach focuses on technical defence, evidentiary analysis, and the protection of your long-term interests, not just on resolving the immediate charge.
If you are facing impaired driving allegations, speak to a lawyer before taking any further steps.
There is no legal difference. Canada does not use DUI or DWI — all such offences are prosecuted as impaired driving under the Criminal Code.
DUI is not a legal term, but the equivalent — impaired driving — is a criminal offence that can result in fines, licence suspension, and imprisonment.
Common charges include impaired driving, driving over 80 mg of alcohol, refusal to provide a sample, and care or control of a vehicle while impaired.
Yes. You can be charged under “care or control” if you had the ability to operate the vehicle while impaired, even if it was parked.
Refusal is a separate criminal offence and often carries penalties equal to or more severe than impaired driving.
Both fall under the same legal framework, but drug cases often rely more on police observations and expert evaluations.
Penalties include mandatory fines, licence suspension, a criminal record, increased insurance costs, and possible jail time.
Yes. A criminal record for impaired driving can restrict travel (especially to the U.S.) and affect employment opportunities.
You should seek legal advice before speaking to the police. Statements can be used as evidence and may negatively affect your defence.
