If Addiction Takes Away Control, Why Can Someone Still Refuse Help?

A mother is sitting beside her adult son in an emergency department after another opioid overdose. It's the third time she's received a call like this. She knows the paramedics got there in time and that the naloxone worked. What she doesn't know is whether he'll survive the next one.

Her son is awake now. He wants to leave. He says he's tired of everyone telling him what to do, and the conversation is becoming familiar. His mother wants him kept somewhere safe long enough to begin treatment. The medical team must assess his immediate condition and whether he has the capacity to make the decision before them. If he does, its legal power to prevent him leaving may be very limited.

For his mother, the distinction is almost unbearable. She has spent months watching him lose his housing, his savings and the ability to keep promises he desperately meant when he made them. It feels absurd to be told that his decision must be respected when the illness itself seems to have taken away his ability to make sensible decisions about using drugs.

And yet the law is worried about something the family, in the middle of a crisis, may not have the luxury of considering. Give the state an easy way to overrule an adult's medical decisions because those decisions look dangerous, and that authority will eventually be exercised against people whose choices are unpopular, misunderstood or inconvenient.

The contradiction Canadian courts have already recognized

In Canada (Attorney General) v. PHS Community Services Society, 2011 SCC 44, the Supreme Court considered the federal government's refusal to continue the exemption needed for Vancouver's Insite supervised injection service. Canada argued that the dangers faced by people using illegal drugs arose from their own choices. The Court rejected that account of the evidence. The trial judge had found that addiction is an illness characterized by impaired control over the need to consume a substance, and the Supreme Court accepted that finding. It also observed that an addicted person may retain the ability to make some choices, including decisions about using a supervised service.

Those observations are often discussed as though they settle the argument over compulsory treatment. They don't. PHS was about access to potentially lifesaving health services and the constitutional limits on a minister's refusal to permit them. The judgment recognized how addiction affects choice. It didn't give doctors, families or governments a general authority to lock people into rehabilitation.

The distinction is clinically and legally difficult. Someone may know that fentanyl could kill them and still experience powerful cravings that overwhelm their intention to stop. They might understand why medication treatment would help. They may even have sought treatment before. None of that establishes that the person lacks the legal capacity to decide whether to accept a particular treatment today.

That last word matters. Capacity is assessed in relation to a decision and the person's condition at the relevant time. Severe intoxication, delirium, psychosis or an acquired brain injury can affect it. So can other circumstances. A diagnosis of substance use disorder, even a severe one, isn't a substitute for an assessment.

The Supreme Court confronted the difference between a medically unwise decision and an incapable one in Starson v. Swayze, 2003 SCC 32. Starson was an Ontario psychiatric patient who refused medication. His doctors believed the refusal would harm him. The majority nevertheless upheld the decision overturning the Consent and Capacity Board's finding of incapacity. Ontario's statutory test asked whether he could understand relevant information and appreciate the reasonably foreseeable consequences of accepting or refusing treatment. The Board had allowed its view of what was best for him to intrude on that different inquiry.

Starson wasn't an addiction case. That makes the principle no less important here. The law doesn't demand that a person choose wisely. It asks whether the person has the ability the applicable statute requires to make the choice. A clinician can consider repeated overdoses, inconsistent explanations and an inability to apply the consequences to one's own circumstances as evidence. The clinician must still establish how those facts bear on capacity, rather than treating disagreement as proof.

Families often hear only the result. They aren't told which decision was assessed, how the person was able to appreciate the consequences or whether their own account of the recent overdoses was considered. That missing explanation can make a proper legal safeguard feel like a bureaucratic refusal to help.

Why the law is reluctant to take away the choice

Canada's commitment to bodily autonomy developed in response to a real danger. A hospital, doctor or government can sincerely believe that a treatment is beneficial and still be mistaken. Even effective treatment can have burdens a patient considers intolerable. Psychiatric history supplies enough examples of people being institutionalized or medicated without meaningful respect for their wishes to explain why the courts insist on limits.

The Ontario Court of Appeal's decision in Fleming v. Reid, 1991 CanLII 2728, addressed the forced treatment of psychiatric patients whose earlier capable wishes opposed the proposed medication. The court found serious constitutional problems with a process that allowed those wishes to be overridden through a best-interests assessment. Its concern was the person's bodily integrity, including when someone else considered treatment necessary.

In Carter v. Canada (Attorney General), 2015 SCC 5, the Supreme Court again discussed autonomy and bodily integrity as interests protected through liberty and security of the person under section 7 of the Charter. Carter concerned medical assistance in dying, a different legal context. Its importance here is the Court's refusal to treat the preservation of life as an automatic answer to every question about medical choice. Respecting life and respecting the person living it can create genuine tension.

That protection has consequences families don't always welcome. A capable adult may refuse chemotherapy or surgery. A capable adult may also decline addiction treatment, even after serious harm. Section 7 doesn't turn every refusal into a constitutional entitlement against any intervention, and mental health statutes can authorize detention when their conditions are met. But the state has to justify interfering with liberty. A prediction that someone will make another bad decision is not, by itself, the necessary legal authority.

There is another reason for caution. People experiencing addiction are disproportionately likely to encounter police, homelessness, poverty and systems of care in which they have little negotiating power. Giving an institution broad discretion to declare someone incapable because of their drug use could make that vulnerability worse. Any new law has to confront the possibility that coercive power will be used unevenly, even when its purpose is benevolent.

None of that makes a mother's fear less reasonable. It explains why the answer can't simply be that families should be allowed to decide when an adult has forfeited autonomy.

Why the rules change when you cross a provincial border

There's something especially interesting about the fact that Canada has no single national mental health statute governing involuntary hospitalization and treatment. A family in Alberta may have one legal avenue available to them, while a family facing almost identical circumstances in Ontario, British Columbia or Québec may encounter different criteria and procedures.

It's not an oversight. The explanation goes back to the way Canada was built.

The Constitution Act, 1867 divides legislative authority between Parliament and the provinces. Health isn't assigned neatly to one level of government under a single constitutional heading. Instead, provincial authority over healthcare comes from several parts of section 92. Section 92(7) deals with hospitals and related institutions. Section 92(13) gives provinces jurisdiction over property and civil rights, which includes much of the law governing medical consent, capacity and substitute decision-making. Section 92(16) addresses matters of a local or private nature. Provinces also administer justice through section 92(14), which matters when courts supervise involuntary assessment or detention.

These powers explain why Alberta has its Mental Health Act, Ontario has its own legislation, and British Columbia can establish different admission and review procedures. Québec approaches the issue through its Civil Code and legislation protecting people whose mental state presents a danger to themselves or others. The constitutional arrangement gives each province room to decide how its own healthcare institutions should respond, provided the laws remain within provincial authority and comply with constitutional rights.

Parliament has significant powers too. Section 91(27) assigns criminal law to the federal government, allowing it to legislate in areas such as controlled substances and drug offences. Federal jurisdiction also extends to certain other health-related matters, and Ottawa uses its spending power to support healthcare across Canada. The Canada Health Act establishes conditions for federal health funding, but it doesn't create one national set of rules for involuntary psychiatric admission or authorize detention in every hospital.

The result is that a person can be subject to federal drug laws while receiving treatment under a provincial healthcare system. Those two bodies of law may address the same problem for entirely different reasons.

The Supreme Court dealt with precisely this constitutional distinction in Schneider v. The Queen, 1982 CanLII 26 (SCC), [1982] 2 SCR 112.

British Columbia had enacted the Heroin Treatment Act, 1978, which provided for voluntary and compulsory treatment of people dependent on heroin, including detention in treatment facilities. The legislation was challenged on the basis that the province had crossed into federal jurisdiction over narcotics and criminal law.

The Supreme Court upheld the Act as a valid exercise of provincial legislative authority. Its essential purpose, or what constitutional lawyers call its pith and substance, was the medical treatment of addiction. It wasn't a disguised attempt to punish people for using drugs. The fact that treatment could involve coercion and detention didn't automatically transform a healthcare statute into criminal legislation.

That is a remarkable decision in the context of today's debate about compulsory addiction treatment. More than four decades ago, the Supreme Court had already accepted that a province could enact legislation compelling treatment for drug dependence without invading Parliament's criminal law jurisdiction.

But there's a qualification that's just as important as the result. The Court expressly noted that the Canadian Charter of Rights and Freedoms hadn't been argued in the case. The judges decided whether British Columbia had the constitutional authority to enact the law. They didn't decide whether every deprivation of liberty permitted by the statute would satisfy the Charter. Nor did the decision establish a current legal authority to detain someone under that historical legislation.

Those are two separate constitutional questions.

One asks whether the government passing a law has the power to legislate about the subject. The other asks whether the law, and the way it's applied, unjustifiably interferes with a person's constitutional rights. A province can have authority to regulate involuntary mental health treatment while particular provisions or decisions remain vulnerable to Charter challenges.

Section 7 protects life, liberty and security of the person, subject to the principles of fundamental justice. Section 9 protects against arbitrary detention, while section 10 establishes important protections for people who are detained, including rights concerning the reasons for detention, legal counsel and habeas corpus. Section 15 also protects equality rights, including protection against discrimination based on mental or physical disability. The application of those guarantees depends on the particular legislation, state action and circumstances.

The Charter therefore creates a common constitutional framework without requiring every province to adopt identical mental health legislation. Each legislature must justify the powers it gives institutions, including their criteria for confinement, procedures for review and rules governing treatment without consent.

This is where provincial differences become particularly important. One province may give greater emphasis to dangerousness, another may require a finding concerning treatment decision-making capacity, and another may provide a different combination of clinical certification, judicial oversight and statutory review. The safeguards can differ too. Admission to hospital, legal detention and authority to administer treatment are not necessarily the same decision.

Federalism allows provinces to respond differently to complex medical and social problems. It gives them room to develop services, learn from unsuccessful approaches and adjust legislation without waiting for a national consensus. That flexibility has value, particularly where the evidence about compulsory addiction treatment remains contested.

For families, though, the same flexibility can feel arbitrary. Why should the legal possibility of obtaining help for someone who has survived repeated overdoses depend on which side of a provincial border they happen to live? Why should one family have access to a judicial examination process that operates differently from the one available to another?

Those are legitimate questions of public policy, even when the different statutory schemes are constitutionally permissible.

The three territories also have their own mental health legislation and services. Their constitutional position is different because territorial legislative authority is delegated by Parliament through federal legislation, rather than arising directly from section 92 as provincial authority does. That distinction doesn't make the need for careful legal safeguards any less important.

Canada's constitutional structure makes a single national approach harder to impose. It doesn't prevent governments from cooperating, adopting common safeguards or learning from other jurisdictions. There is considerable room for greater consistency about independent reviews, patient participation, access to counsel, family involvement, evidence-based treatment and the responsibilities that survive discharge.

The provincial statutes ultimately reflect choices about how to balance public protection, medical judgment and personal liberty. Those choices should be open to scrutiny, especially when the people affected are least able to navigate the system themselves.

What families can actually do under existing law

An overdose is a medical emergency, and emergency treatment can be provided when the legal conditions for treatment without consent are present. Calling 911, using naloxone where available and ensuring urgent medical assessment are immediate responses. But reversing an overdose doesn't automatically authorize days or weeks of involuntary addiction treatment. Once a person is medically stable, any continued detention needs its own lawful basis.

Outside an emergency, the practical question is often whether the person meets the criteria for assessment under provincial mental health legislation. Those criteria aren't uniform across Canada. The law governing apprehension for examination may also differ from the rules for involuntary admission and the separate question of treatment without consent.

In Alberta, section 10 of the Mental Health Act allows a person with relevant information to approach a judge using Form 7. If the statutory criteria concerning mental disorder and risk are met and an examination can't be arranged another way, the judge may authorize apprehension for an examination through a Form 8 warrant. That is an examination route, not an order requiring someone to complete residential addiction treatment. The hospital must make its own decisions under the Act about any subsequent detention. A family considering this route should bring specific observations about behaviour, risk and deterioration, and seek advice about the criteria.

Ontario provides another example. Section 16 of its Mental Health Act allows a justice of the peace, on sworn information and satisfaction of the statutory requirements, to order a psychiatric examination. Physicians have a separate assessment route under section 15. Ontario also distinguishes detention in a psychiatric facility from the treatment-consent rules in the Health Care Consent Act. A person may lawfully be detained for assessment without that fact automatically resolving who may consent to medication.

Québec takes a different legislative route. Article 27 of the Civil Code of Québec allows an interested person or physician to ask a court to order temporary confinement for psychiatric assessment where there are serious reasons to believe a person is dangerous to themselves or others owing to their mental state. More immediate dangers are dealt with under separate protective provisions. The right to confine for assessment doesn't mean every proposed treatment is automatically authorized. The scope and duration of the order matter.

British Columbia's Mental Health Act may apply to some people with severe substance use disorders when its legal and clinical requirements are satisfied, as the province's updated guidance recognizes. Nova Scotia's Involuntary Psychiatric Treatment Act takes a more expressly capacity-based approach, requiring, among other conditions, that the mental disorder leave the person unable to make admission and treatment decisions. These are materially different frameworks. A family can't rely on the existence of an addiction diagnosis to establish eligibility in either province.

There are legal routes for children that adults don't have. Alberta's Protection of Children Abusing Drugs program allows parents or guardians of someone under 18 to apply for a court order authorizing a short stay in a protective safe house for assessment and stabilization. That authority is limited. It isn't an indefinite treatment order and it doesn't extend to an adult son or daughter.

Guardianship can sometimes assist where an adult is genuinely incapable of making specified personal decisions, but even a court-appointed guardian doesn't acquire unlimited authority to detain another person. The order, applicable consent legislation and any separate statutory powers all matter.

Alberta is preparing a more direct response for adults. Its Compassionate Intervention Act received royal assent in May 2025 and is intended to permit applications in cases involving severe substance use and serious risks of harm, subject to the new decision-making framework. As of October 2026, however, the province says the first phase of adult compassionate intervention beds will begin operating in 2027. Families shouldn't be told this is already an available adult application service. Even once it is, the statutory conditions, safeguards and actual treatment resources will need to be examined.

For a family now, the useful work may be less dramatic than a court application. Record episodes of overdose, confusion or inability to care for basic needs accurately. Ask what specific decision-making capacity has been assessed, and whether that assessment accounted for intoxication or other temporary impairment. Tell clinicians what has happened outside the examination room. Privacy rules may limit what the hospital can tell a relative, but they don't necessarily prevent a family from offering information. Ask who can assess mental health legislation, who can arrange addiction medication and what will happen if the person leaves again.

Those steps won't always produce the outcome the family wants. They can, however, expose whether the issue is a genuine lack of legal authority, a failure to assess the available authority, or a failure to provide appropriate care after the emergency.

Keeping somebody alive has to lead somewhere

The argument for compassionate intervention is easy to understand when the alternative appears to be another overdose. A short period of protection may provide an opportunity for assessment and treatment that wasn't otherwise available. But there is a serious evidentiary question about what happens afterward.

A 2016 systematic review found limited and inconsistent evidence that compulsory drug treatment improved outcomes. The studies examined different forms of intervention and weren't a clean evaluation of Alberta's future model. They are a reason to demand credible evidence rather than promise families that confinement itself will produce recovery.

The 2024 Canadian national clinical practice guideline for opioid use disorder recommends both buprenorphine and methadone as first-line medication options. It also recommends against withdrawal management alone because of the elevated risk of relapse and harm without continuing treatment. People who stop using opioids can lose tolerance, which can make a return to use particularly dangerous.

An intervention that protects someone through a crisis but releases them without medication access, housing stability, follow-up appointments or a person responsible for coordinating care may leave the family close to where it started. Legal authorization for detention and clinical capacity to deliver treatment are separate accomplishments. Governments need to be answerable for both.

That suggests a more demanding approach than choosing between absolute autonomy and automatic forced care. Where evidence justifies short-term intervention, the threshold should be clear, individualized and independently reviewable. A person needs access to advice, an opportunity to challenge confinement and a treatment plan built around services that actually exist. Families should know who remains responsible once any order expires. If the state assumes power over a person's liberty in the name of saving a life, accountability can't end when the locked door opens.

And the person living with addiction still has to be heard. They may fear withdrawal, remember harmful care, distrust institutions or want help that isn't being offered. A refusal can be irrational, thoughtful, frightened or some combination of those things. Asking what stands behind it isn't indulgence. It's part of figuring out whether treatment has any realistic prospect of working.

The law is right to be wary of giving families, doctors or the state unchecked power over another adult. It should be equally wary of treating a brief conversation in an emergency department as the end of its responsibility when the evidence points to severe, recurring illness. Families need more than permission to worry, and people living with addiction need more than the abstract freedom to leave.

The real test of a protective law will be whether it makes effective care available while respecting the person whose life everyone says they're trying to save.

Sources

This publication provides general information, not medical or legal advice. Applicable rules depend on the institution, capacity, consent and jurisdiction.