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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Toronto Legal Guides » Criminal Defence & Traffic Offences Toronto » DUI & Impaired Driving Defence Toronto » Can You Refuse to Provide a Breath Sample to Police in Toronto?

Can You Refuse to Provide a Breath Sample to Police in Toronto?

28 Jun 2026 5 min read No comments DUI & Impaired Driving Defence Toronto
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In Toronto, you generally cannot refuse to provide a breath sample to the police. Under the Criminal Code of Canada, “Refusal to Comply with Demand” is a separate criminal offence that carries the exact same severe penalties as an impaired driving conviction, including an automatic one-year driving ban and a minimum $2,000 CAD fine.

Understanding the Law on Refusing a Breathalyzer in Ontario

Many drivers in Toronto mistakenly believe that they can outsmart a drinking and driving charge simply by refusing to blow into the police breathalyzer 😨. This is a massive legal miscalculation. In Canada, driving is considered a privilege, not a constitutional right. To protect the public, Parliament has enacted extremely strict laws regarding mandatory alcohol screening .

Under the Criminal Code of Canada, if a police officer makes a lawful demand for a breath sample, you are legally obligated to provide it 🧐. If you say no, fake a breath, or purposefully fail to provide a “suitable” sample (such as blowing too lightly), you will be charged with the criminal offence of Refusal. The courts treat Refusal just as harshly-if not more harshly-than blowing over the legal limit, to ensure people cannot benefit from hiding the evidence of their intoxication .

Step-by-Step Process in Toronto

Whether you are stopped at a R.I.D.E. checkpoint in North York or pulled over for a traffic violation in downtown Toronto, the interaction regarding breath demands follows a specific legal script 📍. Here is how the process of a Refusal charge unfolds .

Step 1: The Lawful Demand

An officer pulls you over and demands that you provide a sample of your breath into an Approved Screening Device (ASD) at the roadside 👮. Under current Canadian law, the officer does not even need to smell alcohol or have “reasonable suspicion” to make this demand. If you have been pulled over lawfully, they can demand a random breath test .

Step 2: The Refusal and the Warning

If you explicitly say “no,” or if you repeatedly fail to blow hard enough into the machine, the officer will usually give you a formal warning ⚠️. They will clearly explain that failing to provide a suitable sample is a criminal offence. They will give you one final opportunity to comply with the demand .

Step 3: Arrest for Refusal to Comply

If you still refuse, you will be immediately arrested for the criminal offence of Refusal 🚗. Just like a standard impaired driving charge, your vehicle will be impounded for 7 days, and you will be hit with an immediate 90-day Administrative Driver’s Licence Suspension (ADLS) by the Ministry of Transportation (MTO) . Since January 1, 2026, under amendments to Ontario’s Highway Traffic Act, this 90-day administrative roadside suspension automatically triggers a mandatory requirement to complete the Back on Track education program (even for a first occurrence) and counts toward a provincial look-back period for repeat driving offences that has doubled from 5 to 10 years.

Step 4: Contacting a Defence Lawyer

Once arrested and transported to a Toronto Police division, you will be given the right to call a criminal defence lawyer in private 📞. Fighting a Refusal charge is highly technical. Your lawyer will eventually have to prove in court that you either had a valid “reasonable excuse” for not providing the sample, or that the police officer’s initial demand was constitutionally unlawful .

How Much Does it Cost in Toronto?

The financial penalties for refusing a breath sample are actually steeper than a standard first-time “Over 80” conviction 💵.

Cost CategoryEstimated Amount in CADDetails
Mandatory Minimum Fine$2,000The minimum fine for a first Refusal conviction is fixed at $2,000 CAD. For a standard DUI, first-time fines are graded based on blood alcohol concentration: $1,000 (80-119 mg), $1,500 (120-159 mg), and $2,000 (160+ mg).
Administrative Monetary Penalty (AMP)$550A mandatory provincial penalty automatically issued alongside your 90-day ADLS under Section 48.3.1 of the Highway Traffic Act.
Towing & Impound (7 Days)$300 – $600+Paid to the local impound lot to retrieve your vehicle.
Criminal Defence Lawyer$5,000 – $15,000+Block fees for running a complex Charter trial.
  • Provincial Reinstatement Fees: You must pay $281 CAD to ServiceOntario to reinstate your licence after the initial 90-day suspension, plus the mandatory $550 CAD AMP fee.
  • Mandatory Remedial Program: Under the 2026 rules, you must complete the CAMH-administered “Back on Track” educational workshop (costing $344 CAD for a roadside suspension, or up to $894 CAD if convicted of criminal Refusal in court) before your licence can be reinstated.
  • Ignition Interlock: If convicted, you will be forced to rent an ignition interlock (blowbox) for your car for at least a year, costing upwards of $1,500 CAD annually.

How Long Does the Process Take?

The immediate administrative consequences take effect instantly: you lose your licence for 90 days right at the roadside ⌛. Once you are released from the police station under an Appearance Notice or an Undertaking, your criminal case enters the backlogged Ontario Court of Justice system. A fully contested Refusal trial in Toronto usually takes between 12 to 18 months to conclude .

Frequently Asked Questions (FAQ)

What if I physically couldn’t blow hard enough because of asthma?

Medical conditions like severe asthma, COPD, or a recent jaw injury can be considered a “reasonable excuse” for failing to provide a sample. However, you will need strong, documented medical evidence and expert testimony from a doctor to prove this defence in court.

Can I demand to speak to a lawyer before taking the roadside test?

No. The Supreme Court of Canada has ruled that your right to counsel is temporarily suspended at the roadside. You must blow into the handheld device immediately. Refusing to blow because the officer won’t let you call a lawyer will result in a lawful Refusal charge.

Can the police force me to take a blood test instead?

If an officer suspects drug impairment, or if you are physically incapable of providing a breath sample (e.g., due to a severe crash injury), they can make a lawful demand for a blood sample. Refusing a lawful blood demand carries the exact same criminal penalties as refusing a breath test.

What if I was perfectly sober when I refused?

Your level of sobriety is legally irrelevant to a Refusal charge. The offence is simply failing to comply with a lawful demand. Even if you had not consumed a single drop of alcohol, you will still be convicted of the criminal offence of Refusal and lose your licence for a year.

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