What Should You Do After Being Charged with Impaired Driving in Toronto?_
Impaired driving is one of the most commonly prosecuted offences in Canada, and one of the most time-sensitive. A roadside stop, a breath demand, an arrest, a licence suspension, and a criminal charge can all happen within a single hour. Many people facing a DUI in Toronto for the first time have no idea how quickly the clock is already running against them, and how much can be lost by waiting even a few days to act.
What Happens Immediately After an Impaired Driving Arrest
If you’re arrested for impaired driving in Ontario, several things typically happen at once: your vehicle is impounded, often for a minimum of seven days, your licence is automatically suspended administratively, you’re taken in for further testing, and you’re either released with conditions or held for a bail hearing. These administrative and criminal consequences run on separate tracks, each with strict deadlines. Miss the window to challenge an administrative licence suspension, and you lose that right entirely, regardless of what happens with the criminal charge later. This is exactly why our impaired driving and DUI lawyers in Toronto urge clients to call the same day they’re released, not the week before their court date.
Understand What You’re Actually Charged With
Impaired driving charges generally fall into a few categories: operation while impaired by alcohol or drugs, “Over 80” (blood alcohol at or above 80 milligrams per 100 millilitres), refusal to comply with a breath, blood, or coordination demand, and impaired driving causing bodily harm or death, which carries far more severe penalties. The specific charge you’re facing changes what defences are available, and how urgently you need to act.
Don’t Assume the Breathalyzer Result Ends the Conversation
Breath and blood alcohol evidence can be challenged on multiple grounds, including whether police had reasonable and probable grounds for the demand, whether the testing device was properly calibrated and maintained, whether mandatory timing requirements were followed, and whether your Charter right to counsel was respected before testing. An improper stop or Charter breach can get the breath evidence excluded entirely, which frequently ends the Crown’s case outright. Reviewing the technical details of a stop is often where the strongest defences are found.
What Are the Penalties?
Even a first-offence conviction carries a criminal record, a minimum one-year driving prohibition on top of any administrative suspension, mandatory ignition interlock participation, fines starting at $1,000, and years of increased insurance costs. Penalties escalate sharply for repeat offences or cases involving bodily harm. See our guide on DUI charges, penalties, and how to fight them in Ontario for a full breakdown.
Common Defence Strategies in DUI Cases
A strong DUI defence usually begins long before trial, with a careful review of the initial stop. Was there a legitimate reason for police to pull the vehicle over in the first place? Was the roadside screening device administered correctly, and within the required timeframe? Was your right to speak with a lawyer honoured without unreasonable delay? Any weakness in these early steps can undermine the reliability of everything that followed, including the breath or blood results the Crown intends to rely on. In some cases, disclosure will reveal maintenance records showing an approved instrument was not properly calibrated, or notes showing an officer’s grounds for the demand were thin. These are the kinds of details a thorough defence review is built to uncover.
Time-Sensitive Steps You Should Take Now
- Do not discuss the incident with anyone but your lawyer, not friends, coworkers, or social media
- Preserve evidence relevant to timing — receipts, texts, dashcam footage
- Confirm your court date and licence suspension review deadlines immediately — some appeal windows are extremely short
- Retain a lawyer before your first appearance, so disclosure can be requested and reviewed while evidence is still fresh
If your stop also involved a provincial ticket under the Highway Traffic Act, our guide on Highway Traffic Act offences in Toronto explains how those provincial penalties interact with your criminal charge, since they’re often more connected than people realize.
Why Early Legal Representation Matters
DUI cases are technical, turning on procedural details most people would never think to question. At Costa Law Firm, we know how breath and blood evidence is built, and more importantly, how it’s challenged. Even after a conviction, options exist. Read how long a DUI actually stays on your record and what can be done about it.
Every day that passes narrows your options. Call Costa Law Firm now at (416) 535-6329.
Frequently Asked Questions
Do I automatically lose my licence after a DUI charge?
Your licence is administratively suspended right away, separate from the criminal court process, but there are strict, short deadlines to challenge that suspension.
Can a first-offence DUI be beaten?
Yes, in many cases. Procedural and Charter-based challenges succeed often enough that assuming a conviction is inevitable is a mistake.
How quickly should I call a lawyer?
Same day, ideally, before your vehicle release, and well before your first court date.
What is the legal blood alcohol limit in Ontario?
The criminal limit is 80 milligrams of alcohol per 100 millilitres of blood, though lower administrative penalties can apply at 50 milligrams.
Can I refuse a breathalyzer test?
Refusing a lawful demand is itself a criminal offence, generally carrying penalties similar to an impaired driving conviction.
Will a DUI affect my ability to travel to the United States?
Yes, a DUI conviction can result in inadmissibility to the United States, though legal options exist to address this.
What is ignition interlock and how long is it required?
It is a breath-testing device installed in a vehicle, generally required for a set period following a licence reinstatement after conviction.
Can drug-impaired driving charges be defended the same way as alcohol-related ones?
The evidence differs, often relying on drug recognition evaluations, but similar Charter and procedural challenges can still apply.
Is it worth fighting a DUI charge if I know I was over the limit?
Yes. Even where the reading was high, procedural errors in how the stop, arrest, or testing occurred can still result in reduced charges or exclusion of evidence.




