Sexual Assault

Consent, Capacity, and Circumstance: The Supreme Court Rules on Mens Rea in the Absence of Memory

Written on behalf of Barrison & Manitius
An aged and cracked concrete picnic table between the thick trunks of fir trees in a park, representing sexual assault and consent.

How does the criminal justice system adjudicate an allegation of sexual assault when the complainant has no memory of the event? This question poses one of the most significant and recurring challenges in modern Canadian criminal law. For any allegation, the court is tasked with a singular function: to determine, based on the evidence, whether the Crown has proven every element of the offence beyond a reasonable doubt. But what occurs when the complainant’s evidence of the central event is an amnesiac void, and the accused provides a detailed, contrary narrative of full consent?

In its recent, deeply fractured 5-4 decision in R. v. Rioux, the Supreme Court of Canada confronted this precise issue. The Court’s ruling establishes a definitive and binding precedent for assessing evidence in cases involving intoxication and memory loss. The majority affirmed that an absence of memory is not an absence of evidence. It held that trial judges are legally obligated to conduct a holistic, inferential analysis of all direct and circumstantial evidence to determine the facts, rejecting any approach that would treat a complainant’s memory gap as an evidential vacuum. This decision has profound implications for how sexual assault cases are prosecuted and defended in Ontario.

A Picnic and Partial Amnesia

The case involved two individuals, the accused and the complainant, who had a brief prior romantic relationship. They arranged to meet for a picnic in a park. The complainant testified that after consuming a glass of wine and a mixed gin drink that the accused had prepared, she began to experience a severe loss of bodily control and partial amnesia. She recalled her memories becoming blurry flashes, feeling “like a limp rag,” and having no control over her body. She believed she had been drugged.

The accused provided a starkly different account. He testified that the complainant was a willing, physically able, and coherent participant in all sexual activity that occurred.

The trial judge separated the events in question into two distinct timeframes. The first involved sexual acts in the park, which the accused claimed began after a flirtatious self-defence lesson. The complainant had no memory of these specific sexual acts, only a vague recollection of physical proximity.

Following the park, the complainant’s mother received an incoherent and atypical phone call from her, causing her to worry. The complainant recalled falling on rocks near a lake, sustaining injuries, and being unable to walk to the accused’s car. She testified he had to carry her “like a sack of potatoes” over his shoulder, and she vomited upon reaching the vehicle.

The second set of sexual acts occurred later that night at the accused’s home. The complainant had a brief, hazy memory of waking up with the accused on top of her, feeling tired and unable to exercise judgment. She woke again at 5:30 a.m. in a state of panic, unclothed from the waist down, with no clear memory of how she got there. She subsequently recorded a conversation with the accused, in which he denied drugging her but confirmed the sexual activity.

The Trial Decision: A Siloed Analysis and an Acquittal

The trial judge was faced with these two irreconcilable accounts. To resolve the single charge, he adopted a bifurcated analysis, splitting the events at the park from the events at the home.

For the sexual acts in the park, the trial judge acquitted the accused. He reasoned that because the complainant had no memory of the specific sexual acts, her testimony was of no assistance. He concluded that he was left with only the “uncontradicted” testimony of the accused, which he found credible. On this basis, he ruled that the Crown had failed to prove the actus reus (the absence of subjective consent) beyond a reasonable doubt.

For the sexual acts at the accused’s home, however, the judge reached the opposite conclusion. Based on the complainant’s direct testimony of her state at that time (her memory of feeling limp and without judgment) and the robust circumstantial evidence (such as her panicked state upon waking), he found that she lacked the capacity to consent. This finding established the actus reus for this portion of the events.

Despite establishing the actus reus, the trial judge proceeded to acquit the accused on the mens rea element. He accepted the accused’s defence of “honest but mistaken belief in consent,” finding that the accused’s credible testimony raised a reasonable doubt as to whether he had a guilty mind. The trial judge found both the complainant and the accused to be credible witnesses, and he explicitly declined to resolve the factual conflict of whether the accused had drugged the complainant, stating it was not necessary to his finding of incapacity.

The Appeal: The Québec Court of Appeal Identifies Legal Error

The Crown exercised its right of appeal, which, in the case of an acquittal, is strictly limited to an error on a “question of law alone.” The Crown argued that the trial judge’s reasoning was legally flawed.

A majority of the Québec Court of Appeal agreed. The appellate court found that the trial judge had committed two material errors of law, which invalidated the acquittal.

Testimony improperly used as direct evidence of perception

First, the trial judge improperly used the accused’s testimony (his perception of the complainant’s willingness) as if it were direct evidence of her subjective state of mind. This is a foundational legal error, as an accused’s perception is only relevant to the mens rea (his belief), not the actus reus (her actual consent).

Failure to consider all relevant evidence

Second, and more significantly, the Court of Appeal ruled that the trial judge had failed to consider the large and compelling body of circumstantial evidence relevant to the sexual acts in the park. By focusing only on the complainant’s memory gap, the judge ignored her testimony about her physical state, the phone call to her mother, her injuries, and, crucially, his own finding that she lacked capacity just hours later. This failure to consider all relevant evidence, the court ruled, is a well-established error of law. The Court of Appeal set aside the acquittal and ordered a new trial, limited to the events in the park.

The Supreme Court Majority: A Failure to See the Whole Picture

The accused appealed to the Supreme Court of Canada, which was now tasked with resolving the deep divide. In a 5-4 decision, the Supreme Court’s majority dismissed the appeal and upheld the order for a new trial, providing a definitive clarification of the law.

Circumstantial Evidence is Not Second-Class Evidence

Writing for the majority, Justice Martin affirmed the Court of Appeal’s conclusions. The central legal error, she explained, was the trial judge’s confusion between what must be proven and how it may be proven. The Crown must prove the absence of subjective, contemporaneous consent. But this fact, like any other, can be established through either direct evidence or by inference from circumstantial evidence.

The majority held that a complainant’s amnesiac state is not an evidentiary vacuum that leaves an accused’s testimony “uncontradicted.” On the contrary, the memory gap is precisely the reason why the trier of fact must turn to circumstantial evidence to determine the facts. The trial judge’s failure to consider the complainant’s own testimony about her physical and mental state, as well as the corroborating evidence from her mother, was a material error of law.

The Error of a “Siloed” Analysis

The majority also condemned the trial judge’s “siloed” or fragmented approach. The judge’s finding that the complainant lacked capacity at the home was highly probative, relevant circumstantial evidence to her state of mind hours earlier in the park, especially since all intoxicants were consumed before the park events. By failing to integrate this finding into his analysis of the park events, the trial judge failed to assess the evidence as a whole.

The Unresolved Conflict and Mens Rea

Finally, the majority identified a critical flaw in the trial judge’s mens rea analysis. The judge’s failure to resolve the direct factual conflict (the complainant’s credible belief she was drugged versus the accused’s credible denial) was an error. A finding on this fact was essential. If an accused administers a substance that facilitates a sexual assault, he cannot then claim to have an “honest” belief in consent. By avoiding this central conflict, the trial judge’s “honest belief” finding was left without a proper foundation.

The Dissenting View: A Warning on Deference and the Finality of Acquittals

Chief Justice Wagner, writing for the four dissenting justices, delivered a powerful counter-argument. The dissent’s core position was that the majority was, in effect, violating the very rule it claimed to uphold. By finding error in the trial judge’s factual conclusions, the majority was not correcting an error of law, but was instead “re-weighing the evidence.”

The dissent argued that a trial judge is presumed to have considered all the evidence. In their view, the trial judge did consider the circumstantial evidence but was simply not convinced by it beyond a reasonable doubt. He found the accused’s testimony credible, and that finding, which raised a reasonable doubt, is a question of fact that is entitled to deference. The dissent warned that the majority’s approach risks “finely parsing” a trial judge’s reasons to find a “disguised error of fact,” thereby improperly undermining the finality of an acquittal and the high burden of proof on the Crown.

What Rioux Means for Canadian Criminal Law

This Supreme Court decision is a critical affirmation of the law of consent and capacity in Canada. It sends a clear message to trial courts: a complainant’s blackout is not an evidential black hole.

For sexual assault cases, Rioux confirms several key principles:

1. Actus Reus: A Subjective, Not Perceived, Standard

The actus reus of sexual assault is determined by the complainant’s subjective state of mind. An accused’s perception of consent is irrelevant to that analysis; it only becomes relevant later when assessing the mens rea defence of honest mistake.

2. The Mandatory Role of Circumstantial Evidence

Second, when a complainant cannot provide direct evidence of their subjective state of mind due to amnesia, the court must consider the entire constellation of circumstantial evidence. A complainant’s memory of events before and after the act, their physical state, their emotional state, and the testimony of third parties are all relevant and probative pieces of evidence that a judge cannot ignore.

3. A Mandate for Holistic and Thorough Analysis

This judgment solidifies the legal framework, ensuring that the absence of memory does not mean the absence of justice. It demands a holistic, logical, and thorough analysis of all facts, reinforcing that consent must be knowing, voluntary, and contemporaneous for every single sexual act.

Barrison & Manitius: Oshawa Criminal Defence Lawyers Representing Clients Against Sexual Assault Charges

If you are navigating a sexual assault allegation involving issues of consent, capacity, or memory loss, it is essential to obtain timely, informed legal advice. At Barrison & Manitius, our experienced criminal defence lawyers regularly handle complex evidentiary questions and appellate issues arising from decisions like R. v. Rioux. We can review your circumstances, explain how the Court’s reasoning may apply to your case, and help you understand your options. To discuss your situation, please contact us online or call 905-404-1947 (toll-free at 1-888-680-1947) to arrange a confidential consultation.