Can an Impaired Driving Charge Be Dismissed in Ontario?

A charge is not a conviction

An impaired-driving charge is an allegation. The Crown must prove every element of the offence beyond a reasonable doubt using admissible evidence. Some cases end without a conviction, but there is no automatic formula for having an impaired-driving charge “dismissed.”

The possible outcome depends on the evidence, the offence charged, legal rulings, prosecutorial decisions, and the facts of the individual case.

When the Crown’s evidence is insufficient

A case can have weaknesses relating to operation, identity, impairment, blood alcohol concentration, timing, witnesses, or other essential elements. If the Crown cannot prove an element beyond a reasonable doubt, an acquittal can result at trial.

Before trial, the Crown also has an ongoing responsibility to assess whether a prosecution should continue under the applicable prosecution standards.

Breath and blood evidence

BAC cases can involve technical statutory and evidentiary rules. Defence counsel may review whether the required samples were lawfully obtained, the timing of testing, the records generated by the approved instrument, continuity and disclosure issues, and the statutory rules governing proof of blood alcohol concentration.

A high reading does not eliminate the need for lawful, admissible proof. At the same time, technical arguments are not automatically successful merely because a procedural issue is alleged.

Charter issues

Impaired-driving investigations can engage Charter rights, including rights concerning detention, counsel, search and seizure, and trial delay. If a Charter breach is established, the court must apply the relevant legal test to determine the appropriate remedy.

Not every Charter breach leads to exclusion of evidence or dismissal. The remedy depends on the nature of the breach and the governing legal framework.

Withdrawal, resolution, or trial

Cases can conclude in different ways. A charge may be withdrawn by the Crown, resolved through a lawful plea arrangement, stayed in appropriate circumstances, or decided after trial. Which outcomes are realistically available can only be assessed after reviewing disclosure and the client’s circumstances.

A defence lawyer’s role is to identify the issues, advise the client, make appropriate applications or representations, and prepare the case based on the evidence.

Have the evidence reviewed

Online lists of “ways to beat a DUI” are often misleading because impaired-driving cases are fact-specific. The most useful starting point is a complete review of the police investigation and disclosure.

LZZ Defence can assess the evidence and explain the legal issues in an impaired-driving case. No outcome can be guaranteed. This article is general information only.