David M. Paciocco

Judicial Profile: Ontario Court of Appeal judge whose most controversial rulings and opinions involve extreme intoxication as a defence to violent offences, conditional sentences in serious sexual-assault cases, and the role of systemic anti-Black racism in sentencing for loaded-handgun offences.

Overview

Summary of Controversy

Justice Paciocco’s most publicly controversial reasons are in R. v. Sullivan, where he wrote for the Ontario Court of Appeal in a decision declaring the former section 33.1 of the Criminal Code unconstitutional. That provision had barred accused persons from relying on self-induced extreme intoxication akin to automatism as a defence to violent general-intent offences, including assault and sexual assault. The ruling entered acquittals for David Sullivan and ordered a new trial for Thomas Chan.

The ruling became controversial because many members of the public, women’s organizations, and sexual-assault advocates feared it would reopen a route for accused persons to avoid criminal responsibility for violent acts committed after consuming drugs or alcohol. Supporters and criminal-law commentators argued that the decision was constitutionally required because the old law allowed people to be convicted without proof of voluntariness or the necessary fault element.

Justice Paciocco has also drawn attention in sentencing-law controversies. In R. v. R.S., he wrote separately and would have upheld a conditional sentence in a violent sexual-assault case involving an Indigenous offender, emphasizing deference to sentencing judges and the relevance of Gladue factors. In R. v. Morris, he sat on the Court of Appeal panel that recognized anti-Black racism as relevant to moral blameworthiness in sentencing, while also increasing the sentence in a loaded-handgun case.

Most Controversial Rulings

R. v. Sullivan, 2020 ONCA 333

Subheadline: The Ontario ruling that struck down Canada’s ban on the extreme-intoxication defence for violent offences and helped trigger an urgent federal rewrite of the Criminal Code.

Case Summary: R. v. Sullivan involved two appeals heard together. David Sullivan had taken a large quantity of a prescription drug in a suicide attempt and, while in a state of psychosis, stabbed his mother. Thomas Chan had consumed magic mushrooms, entered a psychotic state, attacked his father, and killed him. Both cases raised the constitutionality of section 33.1 of the Criminal Code, which prevented accused persons from relying on self-induced extreme intoxication akin to automatism as a defence to violent offences involving interference with bodily integrity.

What the Court Decided: Justice Paciocco wrote the Ontario Court of Appeal’s reasons. The Court held that section 33.1 violated the Charter because it permitted conviction without proof of voluntariness, without proof of the required mental fault for the violent offence, and by substituting the fault involved in becoming intoxicated for the fault required for the offence itself. The Court entered acquittals for Sullivan and ordered a new trial for Chan.

Consequences for Victims or Society: The ruling had immediate consequences for victims of violence, prosecutors, police, Parliament, and the public. It reopened the legal possibility that, in rare cases, accused persons could raise self-induced extreme intoxication akin to automatism in response to violent charges. Because the offences potentially affected include assault and sexual assault, the ruling triggered serious concerns among women’s equality organizations and sexual-assault advocates.

Why the Ruling Was Controversial: Critics argued that the decision risked weakening accountability for violent crime committed after voluntary consumption of drugs or alcohol. Public concern was intense enough that legal commentators and defence lawyers wrote pieces responding to fears that the decision created a broad intoxication defence. Women’s equality groups emphasized the implications for assault and sexual-assault cases, while criminal-law commentators stressed that the defence is narrow and applies only to extreme intoxication akin to automatism, not ordinary drunkenness.

Public Reaction: Canadian Lawyer reported that the Ontario Court of Appeal ruling sparked a petition and public fears about intoxication as a defence for assault, while also noting that lawyers said many fears were based on misunderstanding the decision. OJEN later observed that the Supreme Court’s related ruling reverberated across society and launched a flurry of questions and concerns. Parliament ultimately responded by amending section 33.1 through Bill C-28.

Counterpoint / Supportive View: Supporters argued that the ruling did not create a defence of ordinary intoxication. The issue was whether a person can be convicted of a serious violent offence when, because of an automatistic state, the Crown cannot prove voluntary action or the required mental element. On this view, the decision upheld basic criminal-law principles while leaving Parliament free to draft a narrower, constitutionally valid law.

Appeal History: The Supreme Court of Canada upheld the result in R. v. Sullivan and related reasoning in R. v. Brown. The Supreme Court confirmed Sullivan’s acquittals and the new trial order for Chan. Parliament then enacted a new version of section 33.1 intended to hold people criminally responsible where they consume intoxicants in a criminally negligent manner and then violently harm others while extremely intoxicated.

R. v. R.S., 2023 ONCA 608

Subheadline: A violent sexual-assault sentencing case in which Justice Paciocco would have upheld a conditional sentence served in the community.

Case Summary: R. v. R.S. involved an Indigenous first offender who was convicted of a violent sexual assault that included choking. The sentencing judge imposed a conditional sentence of two years less a day, followed by probation. The Crown appealed, arguing that the sentence was demonstrably unfit and that a penitentiary sentence was required to properly denounce and deter the offence.

What the Court Decided: The Court of Appeal dismissed the Crown’s appeal in the result, but the judges disagreed on why. The majority concluded that the conditional sentence was demonstrably unfit and that a three-year prison sentence would have been proportionate, but dismissed the appeal to avoid reincarceration and preserve the completed or ongoing supervisory structure. Justice Paciocco wrote separately and would have upheld the conditional sentence as fit, emphasizing appellate deference, proportionality, the punitive nature of conditional sentences, rehabilitation, and Gladue factors.

Consequences for Victims or Society: The case had consequences for sexual-assault complainants, Indigenous offenders, sentencing judges, Crown appeals, and public confidence in sentencing. For critics, a community-based sentence for a violent sexual assault risks undercutting denunciation, deterrence, and recognition of sexual violence as serious harm. For supporters, the case shows that sentencing must remain individualized and that conditional sentences are still sentences of imprisonment, even when served in the community under strict conditions.

Why the Ruling Was Controversial: Critics of Justice Paciocco’s approach argued that it was too deferential in a serious sexual-assault case and gave too much weight to rehabilitation and offender circumstances. The majority reasons stated that conditional sentences will rarely, if ever, be proportionate in violent sexual-assault cases of this kind. Later criminal-law commentary described the case as part of an ongoing and fraught debate about when conditional sentences are appropriate for serious offences.

Public Reaction: Legal commentators treated the case as a major Ontario sentencing decision. Some commentators criticized the majority for creating a chilling effect on conditional sentences for vulnerable defendants, while others viewed the majority’s warning as necessary to protect the seriousness of sexual-assault sentencing. The case has since been cited in later sexual-assault sentencing decisions when courts consider whether conditional sentences remain available in serious sexual-offence cases.

Counterpoint / Supportive View: Justice Paciocco’s approach can be defended as an effort to preserve individualized sentencing and avoid automatic rules that treat all serious offences alike. He emphasized that the gravity of the offence is only one part of proportionality and that Gladue principles, rehabilitation, and the offender’s moral blameworthiness remain central even in serious cases. Supporters argue that appellate courts should not replace a trial judge’s sentencing balance merely because they would have imposed a harsher sentence.

Appeal History: This was an Ontario Court of Appeal decision. The Crown appeal was dismissed in the result, although the majority found the sentence demonstrably unfit and would have identified a three-year penitentiary sentence as proportionate.

R. v. Morris, 2021 ONCA 680

Subheadline: A loaded-handgun appeal that recognized anti-Black racism as relevant to moral blameworthiness while still increasing the offender’s sentence.

Case Summary: Kevin Morris was convicted of gun-related offences, including possession of a loaded handgun. The sentencing judge had accepted evidence about anti-Black racism and imposed a mitigated sentence. The Crown appealed, arguing that the sentence was unfit and failed to reflect the seriousness of the gun offence.

What the Court Decided: Justice Paciocco sat on the Ontario Court of Appeal panel. The Court held that anti-Black racism is a reality in Canadian society and in the criminal justice system, and that it may be relevant to moral blameworthiness and rehabilitation in sentencing. At the same time, the Court held that anti-Black racism cannot reduce the objective seriousness of gun crime. The Court increased Morris’s sentence to two years less a day, but stayed the sentence.

Consequences for Victims or Society: The case became one of Ontario’s leading authorities on race, sentencing, and Impact of Race and Culture Assessments. It affected how courts consider systemic racism in sentencing while also reinforcing that loaded-handgun offences remain serious public-safety crimes. The decision influenced later sentencing arguments involving anti-Black racism, social-context evidence, moral blameworthiness, deterrence, denunciation, and public safety.

Why the Ruling Was Controversial: Critics of race-based sentencing frameworks argue that social-context evidence can be perceived as reducing accountability for serious offences and may weaken deterrence in gun-crime cases. Supporters argue that sentencing cannot be truly proportionate unless courts understand how racism, over-policing, poverty, and exclusion shape the offender’s life and choices. The controversy is sharpened by the fact that the case involved a loaded handgun, a category of offence courts repeatedly describe as dangerous and corrosive to public safety.

Public Reaction: Equality-focused legal organizations described Morris as ground-breaking because it recognized anti-Black racism and reduced the burden on offenders to prove racism through expert reports in every case. Some legal commentary, however, noted that the decision also limited the reach of anti-Black racism evidence by holding that it does not reduce the seriousness of the offence and by declining to make consideration of such evidence mandatory in every case.

Counterpoint / Supportive View: The strongest defence of the ruling is that it tried to balance two competing principles: substantive equality in sentencing and public denunciation of gun crime. The Court did not excuse loaded-handgun possession. It increased the sentence while clarifying that systemic racism can still matter to moral blameworthiness and rehabilitation.

Appeal History: This was an Ontario Court of Appeal decision from the sentencing ruling in R. v. Morris, 2018 ONSC 5186. The Crown appeal was allowed in part. The sentence was increased but permanently stayed.

Sources

• Court of Appeal for Ontario — current judges list and biography
• Justice Canada — 2017 appointment of David M. Paciocco to the Court of Appeal for Ontario
• Justice Canada — Justice David M. Paciocco’s judicial appointment questionnaire
• University of Ottawa — David M. Paciocco faculty profile
• Ontario Newsroom — 2011 Ontario Court of Justice appointment announcement
• CanLII — R. v. Sullivan, 2020 ONCA 333
• Supreme Court of Canada — R. v. Sullivan, 2022 SCC 19
• Supreme Court of Canada — Case in Brief, R. v. Sullivan
• Canadian Lawyer — public reaction to Chan and Sullivan ruling
• Ontario Justice Education Network — R. v. Sullivan extreme-intoxication overview
• LEAF — R. v. Sullivan / R. v. Chan case summary
• Justice Canada — changes to section 33.1 of the Criminal Code after the extreme-intoxication rulings
• CanLII — R. v. R.S., 2023 ONCA 608
• Ontario Reports — indexed version of R. v. R.S.
• Rudnicki & Company — commentary on R.S. and conditional-sentence debate
• Lisa Kerr — The Conditional Sentence Returns to Our Hybrid Penal-Welfare State
• CanLII — R. v. Morris, 2021 ONCA 680
• Asper Centre — analysis of R. v. Morris and anti-Black racism in sentencing
• TheCourt.ca — R. v. Morris: systemic racism and sentencing of Black offenders