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Summary: Alcohol and drugs come up in a large share of sexual assault cases, but the law treats intoxication in two very different ways depending on whose it is. A complainant’s intoxication only removes consent if it reaches the point of incapacity, ordinary drunkenness, poor judgment, or not remembering the night afterward is not the same as being incapable of consenting. An accused person’s own intoxication, on the other hand, is generally not a defence to sexual assault at all. Getting that distinction right is often the whole case, and it’s where our criminal defence lawyers at Karapancev Law start.
Two Different Questions the Law Keeps Separate
When people hear “intoxication and consent”, they tend to blur two questions that the courts keep firmly apart.
The first is about the complainant: did their intoxication take away their capacity to consent? The second is about the accused: can their intoxication excuse what happened? These lead to completely different legal tests and completely different outcomes. Treating them as one question is one of the most common mistakes made in these cases, and one our lawyers watch for closely.
When Intoxication Affects a Complainant’s Capacity to Consent
Under section 273.1 of the Criminal Code, consent means the voluntary agreement of the complainant to the sexual activity in question, and that agreement has to exist in their mind at the time it happens. The Supreme Court confirmed in R. v. J.A. that consent must be contemporaneous; there’s no such thing as consenting in advance to activity that takes place while you’re unconscious.
Capacity is a precondition to that consent. In R. v. G.F., the Supreme Court set out four things a person must be able to understand to be capable of consenting: the physical act, that it is sexual in nature, the specific identity of their partner, and that they can choose to say no. If intoxication has stripped away any one of those, there is no capacity, and no valid consent.
Here’s the point that gets lost. Intoxication is not the same as incapacity. A person can be drunk, even quite drunk, and still be legally capable of consenting. Disinhibition, poor decisions, slurred speech, and even not remembering events the next day do not, on their own, prove incapacity. What matters is whether the person still had what the courts call an operating mind at the time.
The most recent word on this comes from R. v. Rioux, a 2025 Supreme Court decision dealing squarely with intoxication and memory gaps. The Court confirmed that a complainant’s inability to remember is not, by itself, proof that they couldn’t consent. Instead, judges have to weigh all the evidence, the person’s state before and after, outward signs of impairment, and accounts from other witnesses, to decide the capacity question.
What About the Accused’s Intoxication?
This is where a lot of people are surprised. If you were the one who was intoxicated, that generally does not help you.
Sexual assault is what the law calls a general intent offence, and voluntary intoxication is not a defence to it. On top of that, section 273.2 of the Criminal Code shuts the door on the “honest but mistaken belief in consent” defence where the accused’s belief came from their own self-induced intoxication, from recklessness or wilful blindness, or where the accused failed to take reasonable steps to find out whether the other person was consenting. In other words, “I was too drunk to realize” is not a defence, it’s specifically excluded.
There is one narrow and often-misunderstood doctrine: extreme intoxication akin to automatism, a state so severe the person had no voluntary control over their actions. In R. v. Brown (2022), the Supreme Court struck down the old law that had barred this defence for violent offences. But Parliament responded within weeks. The current section 33.1 of the Criminal Code, in force since June 2022, allows a person to be convicted where they negligently drank or used drugs to that extreme state in circumstances where a reasonable person would have seen the risk of losing control and harming someone. This is a rare, high-threshold path, not a loophole for ordinary drunkenness, and not something that applies to the vast majority of cases.
How These Cases Are Actually Defended
Because consent is assessed by what was in the complainant’s mind, and capacity turns on a high threshold, these cases are rarely as one-sided as they first appear. Our lawyers look closely at several things.
Whether the Crown can actually prove incapacity, as opposed to intoxication, the two are not the same, and the line is fact-specific with no fixed blood-alcohol number. The reliability and consistency of the account, since proof beyond a reasonable doubt is the standard and a complainant saying they don’t remember doesn’t end the analysis. The surrounding evidence Rioux points to, texts, witnesses, video, and the state of both people before and after. And whether, on the specific facts, a genuine and reasonable belief in consent was open to the accused, keeping section 273.2’s limits in mind.
This is careful, evidence-driven work. Understanding how consent works in Canadian law and the rights of the accused is the foundation for it. So is a clear-eyed look at what is considered sexual assault in the first place.
A Strong Defence
An accusation is not a conviction. The Crown has to prove the absence of consent, or the absence of capacity to consent, beyond a reasonable doubt, and it has to prove the accused knew of, or was reckless or wilfully blind to, that absence. Those are demanding standards.
Our criminal defence lawyers at Karapancev Law, the firm founded by Alexander Karapancev, build a defence on a thorough examination of your case, the evidence, the timeline, and how the Crown intends to prove each element. We hold the Crown to its burden and pursue every available defence. If you’re facing a sexual assault charge involving alcohol or drugs in Toronto, Brampton, Newmarket, or anywhere in the Greater Toronto Area, contact Karapancev Law for a confidential consultation.
