BC has one of the strictest impaired driving enforcement regimes in Canada, with a dual system that often confuses people facing it for the first time. Understanding the difference between the provincial and criminal processes — and how fast you need to act — matters enormously to the outcome.
BC's two-track system
When someone is suspected of impaired driving in BC, two separate processes can apply, sometimes simultaneously:
Track 1: Immediate Roadside Prohibition (IRP)
This is a provincial administrative penalty, not a criminal charge. Based on the results of a roadside breath test, police can issue an immediate licence suspension and vehicle impoundment on the spot. The length of the suspension depends on the test result range and whether it's a repeat occurrence:
- "Warn" range result — shorter suspension, typically a few days, with escalating penalties for repeat warn-range results within a set period
- "Fail" range result — longer suspension, typically 90 days, along with vehicle impoundment and mandatory remedial programs before licence reinstatement
An IRP happens immediately at the roadside and does not require a criminal conviction, charge, or even necessarily a criminal investigation. It is handled separately by RoadSafetyBC.
Track 2: Criminal impaired driving charge
Separately, police can lay a criminal charge under the Criminal Code for impaired driving or driving with a blood alcohol concentration over the legal limit. This goes through criminal court, can result in a criminal record, and carries significantly more serious long-term consequences than an IRP alone.
It's entirely possible to receive an IRP at the roadside and then separately be criminally charged from the same incident, particularly in cases involving an accident, injury, or extremely high test results.
Disputing an IRP
If you receive an IRP, you have a short window — typically 7 days — to apply for a review through RoadSafetyBC. The review is based on written submissions and the police officer's report, not an in-person hearing in most cases.
Common grounds for a successful review include:
- Issues with how the roadside test was administered
- Problems with the calibration or maintenance records for the testing device
- The officer lacked proper grounds to demand the test in the first place
- Procedural errors in how the prohibition was issued
Given the short timeline, if you intend to dispute an IRP, you need to act within days, not weeks. Gathering evidence and preparing written submissions takes time, so early legal advice matters here more than almost any other area of criminal law because of how compressed the deadline is.
What happens with a criminal charge
If you're criminally charged, the process follows the standard criminal court path: first appearance, disclosure of the Crown's evidence, and then either a resolution discussion or trial.
Defence strategies in impaired driving cases often focus on technical and procedural issues:
- Whether the police had valid grounds to make the breath test demand
- Whether the breath testing equipment was properly calibrated and maintained
- Whether proper procedure was followed in administering the test
- Timing issues between when you were driving and when the test was administered
- Charter rights issues, such as whether you were given proper access to a lawyer
Consequences of a criminal conviction
Beyond the immediate roadside penalties, a criminal impaired driving conviction in BC typically results in:
- A criminal record
- A federal driving prohibition, separate from and in addition to any provincial suspension
- Mandatory participation in remedial programs before relicensing
- Significantly increased insurance costs for years afterward
- Potential employment consequences, especially for jobs requiring driving or a clean record
- Travel restrictions, particularly entry to the United States, which treats DUI convictions seriously for immigration purposes
For repeat offences, or incidents involving injury or death, penalties escalate substantially and can include mandatory minimum jail sentences.
What to do immediately after being charged
- Do not discuss the incident with police beyond what's legally required
- Write down everything you remember about the stop and testing process while it's fresh — timing, what was said, how the test was conducted
- If you received an IRP, calculate your review deadline immediately and contact a lawyer right away given the short window
- Keep all paperwork you were given at the roadside
- Contact a lawyer experienced in impaired driving matters specifically — this is a technical area of criminal law with procedural nuances that matter significantly to outcomes
Impaired driving law involves more technical, science-based defence strategy than many other criminal matters, given the reliance on breath testing equipment and procedure. A lawyer experienced specifically in this area, rather than a general criminal defence practice, often makes a meaningful difference to the available defences in your specific case.