Impaired Driving (DUI) in Ontario: What You Need to Know

Being charged with impaired driving — often referred to as drunk driving or “over 80” — is a serious matter under Canadian law. Even a first-time offence can result in harsh penalties that affect your license, finances, and future. Understanding your rights and acting quickly is crucial when facing these charges.

The Law on Impaired Driving (DUI) in Ontario

Under both the Criminal Code of Canada and Ontario’s Highway Traffic Act, it is a criminal offence to:

• Operate a motor vehicle with a blood alcohol concentration (BAC) over 0.08, or

• Drive while impaired by alcohol, drugs, or a combination of both — even if your BAC is below 0.08.

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Police also have authority to conduct roadside sobriety tests, demand a breath or blood sample, and suspend your license immediately if you fail or refuse testing. Refusing to provide a sample can result in the same penalties as an impaired driving conviction.

Penalties and Consequences

The penalties for impaired driving in Ontario are severe, even for first-time offenders. Depending on the case, consequences may include:

• Immediate driver’s license suspension

• Mandatory fines and increased insurance premiums

• Possible jail time for repeat or aggravated offences

• Mandatory installation of an ignition interlock device

• Mandatory education or treatment programs

• A permanent criminal record, which can affect travel, employment, and immigration status

Because impaired driving is treated as a criminal offence, convictions have long-term consequences that go far beyond the courtroom.

How Our Firm Can Help

At Michael Coristine Law, we are a criminal litigation firm with extensive experience defending clients charged with impaired, “over 80,” and refusal-related offences. From the initial roadside stop to trial and appeal, we provide thorough and strategic defence representation.

Our approach includes:

• Examining police conduct for breaches of your Charter rights

• Reviewing breathalyzer or testing procedures for accuracy and compliance

• Challenging grounds for the traffic stop or arrest

• Identifying technical or procedural errors that could result in dismissal or reduction of charges

Our goal is to protect your license, reputation, and future through strong advocacy and meticulous preparation.

Take Immediate Action

If you have been charged with impaired driving / DUI, “over 80,” or refusal, contact Michael Coristine Law right away. Early legal advice can make a significant difference in your case outcome.

We will review your case in detail, explain your options, and develop a strategic defence aimed at achieving the best possible result — whether through negotiation or at trial.