Being charged with impaired driving can upend your life almost overnight. A DUI charge is not just a traffic matter — it is a serious criminal charge that can affect your freedom, your record, your licence, and your livelihood. Whether this is your first offence or not, the consequences in Ontario are significant. This is why working with an experienced DUI lawyer in Mississauga from the earliest possible stage is so important.

At A. Dhillon Law, we regularly speak with individuals who feel lost and overwhelmed after a DUI arrest. The criminal justice process is unfamiliar territory for most people, and that uncertainty can make an already stressful situation worse. Our goal is to give you a clear picture of what you are facing and what your options are — so you can move forward with confidence.

What Counts as Impaired Driving in Ontario?

Impaired driving in Ontario is broader than many people realize. It is not limited to alcohol. Under the Criminal Code of Canada, you can face charges if your ability to operate a motor vehicle is impaired by alcohol, cannabis, prescription drugs, illegal drugs, or any combination of substances.

Common impaired driving charges include:

Driving with a blood alcohol concentration (BAC) above the legal limit of 80 mg/100 mL (also referred to as “over 80”)
Impaired operation of a vehicle by alcohol or drugs
Refusing or failing to comply with a demand to provide a breath, blood, or urine sample
Impaired driving causing bodily harm or death (more serious charges carrying greater penalties)

It is important to note that even if you believe you were within the legal limit, charges can still be laid based on observed behaviour — such as swerving, slurred speech, or failing a roadside sobriety test. The charge does not require a breath test result above the limit; it only requires that the officer reasonably believed your ability to drive was impaired.

Immediate Consequences: What Happens After a DUI Charge

The consequences of a DUI charge begin immediately — even before your case reaches a courtroom. Understanding these immediate steps is critical.

At the Scene

Police may conduct a roadside breath test or field sobriety test
If arrested, you will be taken to the station for a breathalyzer (Intoxilyzer) test or a drug recognition evaluation
Your vehicle may be impounded on the spot

After the Arrest

Your driver’s licence will likely be suspended immediately — in Ontario, this can be a 90-day Administrative Driver’s Licence Suspension (ADLS) upon failing or refusing a test
Your vehicle may be held in impoundment for 7 days for a first offence
You will receive a future court date and may be released with conditions

This is precisely the point where contacting a DUI lawyer in Mississauga is critical. Early legal advice helps you understand your conditions of release, prevents costly mistakes, and preserves your ability to mount a strong defence.

Understanding the Consequences of a DUI Conviction

If convicted of impaired driving in Ontario, the penalties are serious. They increase significantly with each subsequent offence.

First Offence

Minimum $1,000 fine
Mandatory participation in the Back on Track education or treatment program
Minimum one-year driving prohibition
Ignition interlock requirement for at least one year
A permanent criminal record

Second Offence

Minimum 30 days in jail
Minimum two-year driving prohibition
Ignition interlock requirement for at least three years

Third or Subsequent Offence

Minimum 120 days in jail
Possible 10-year or lifetime driving prohibition

Beyond these direct penalties, a DUI conviction can have serious collateral consequences:

Significantly increased auto insurance premiums (often doubling or tripling)
Difficulty maintaining or obtaining employment — particularly in roles requiring driving or security clearance
Travel restrictions, including potential denial of entry to the United States
Impact on professional licences (e.g., commercial drivers, healthcare workers, educators)

An experienced impaired driving lawyer in Mississauga helps you fully understand what you are facing — and what can be done about it.

Possible DUI Defence Strategies

No two DUI cases are the same. Effective defence starts with a thorough review of the facts. At A. Dhillon Law, we examine every aspect of your case to identify where the prosecution’s case may be vulnerable.

Common defence strategies in impaired driving cases include:

Challenging the Lawfulness of the Traffic Stop

Police must have a valid reason (reasonable suspicion) to stop your vehicle. If the stop was not lawfully justified, any evidence obtained afterward — including breath samples — may be excluded.

Challenging the Administration of Breath or Blood Tests

Approved screening devices and Intoxilyzers must be operated by qualified technicians following strict protocols. Errors in procedure can undermine the reliability of the results.

Questioning the Accuracy of Testing Equipment

Breathalyzer machines require regular calibration and maintenance. Records showing that the device was not functioning properly at the time of your test can be a powerful defence tool.

Charter Rights Violations

The Canadian Charter of Rights and Freedoms protects you in several important ways during a DUI investigation. Violations of your right to counsel, right against unreasonable search and seizure, or right to be informed of the reason for detention can result in evidence being excluded.

Care and Control Issues

Being convicted of a DUI offence does not always require that you were driving. You can be charged for having “care and control” of a vehicle while impaired. Defence strategies may include examining where you were seated in the vehicle, what you were doing, and whether you had the keys with you or in the ignition.

Raising a Reasonable Doubt

In many cases, the goal is not to prove innocence outright, but to demonstrate that the Crown cannot prove guilt beyond a reasonable doubt. This can be achieved through inconsistencies in witness testimony, procedural irregularities, or gaps in the evidence.

Why Legal Representation Makes a Difference

DUI cases are among the most technically complex in criminal law. Breath testing evidence, proper police procedure, Charter applications, and sentencing options all require specialized knowledge. Without proper legal guidance, it is easy to miss important details or inadvertently waive rights you did not know you had.

When you work with A. Dhillon Law, we will:

Obtain and carefully review all disclosure materials, including police notes, breathalyzer records, and video footage
Identify any potential Charter of Rights violations in how your stop, detention, or test was handled
Develop a defence strategy tailored to the specific facts of your case
Represent you at court appearances, motion hearings, and negotiations with the Crown
Guide you through any licence suspension processes or administrative hearings

Licence Suspension in Ontario: What You Need to Know

For many people, losing their driver’s licence is one of the most immediately disruptive consequences of a DUI charge. In Ontario, an Administrative Driver’s Licence Suspension (ADLS) can be imposed at the roadside — immediately following a failed or refused breath test — before any court proceedings begin.

A 90-day licence suspension under the ADLS program is separate from any suspension that may follow a criminal conviction. This means you could face multiple layers of licence-related consequences.

Understanding your rights around licence suspension Ontario — and whether there are grounds to challenge the administrative suspension — is an important part of the overall defence strategy. Relying on your driver’s licence for work, family obligations, or daily life makes this an urgent priority.

Frequently Asked Questions About DUI Charges in Mississauga

Can I drive after being charged with a DUI?

Possibly not. Depending on the circumstances, your licence may be suspended immediately following your charge. You should confirm your current driving status with a lawyer as soon as possible.

Will I go to jail for a first DUI offence?

Jail is not mandatory for a first DUI offence without aggravating circumstances. The minimum penalty is a fine and driving prohibition. However, if there was an accident, injury, or other aggravating factors, jail is possible. The outcome depends heavily on the specific facts and the quality of your legal defence.

How long does a DUI charge stay on my record?

A DUI conviction results in a permanent criminal record in Canada. While a record suspension (formerly called a pardon) may be available after a waiting period, the conviction itself remains. This is why avoiding a conviction in the first place — through a strong defence — is so important.

What is the difference between impaired driving and “over 80”?

Impaired driving means your ability to drive was impaired by alcohol or drugs, regardless of your BAC reading. “Over 80” refers specifically to having a BAC above 80 mg/100 mL. Both are separate charges, and both can be laid at the same time.