Ontario Court: Prior Impaired Driving Convictions Key to Civil Liability

• A prior conviction for operating while impaired can serve as presumptive proof of impairment in civil court.
• The abuse of process doctrine prevents re-arguing issues decided by a criminal conviction.
• The Kienapple principle prohibits double punishment for the same offence arising from the same transaction.
• Impaired driving convictions can have significant implications beyond the criminal courtroom, including civil liability and damages.

A prior conviction for operating while impaired can be a powerful piece of evidence in civil court. Under s. 22.1 of Ontario's Evidence Act, it serves as presumptive proof of the underlying facts in any subsequent proceeding.

When it comes to impaired driving cases, the focus is often on the criminal charge and its consequences. However, for those affected by such incidents, the most pressing concern is usually the civil aspect – can they be sued, and if so, how much? This question is particularly relevant in Canada, where impaired driving is the leading cause of death and injury on the roads. According to the Royal Canadian Mounted Police (RCMP), this issue demands attention from both law enforcement and the courts. In fact, a conviction for operating while impaired can have far-reaching implications beyond the criminal courtroom.

A prior conviction for operating while impaired can be a powerful piece of evidence in civil court. Under s. 22.1 of Ontario's Evidence Act, it serves as presumptive proof of the underlying facts in any subsequent proceeding. This means that once a conviction is established, it cannot simply be re-litigated in civil court. The abuse of process doctrine, as seen in cases like Toronto (City) v. C.U.P.E., Local 79 , 2003 SCC 63 , prevents attempts to re-argue issues decided by a criminal conviction. This principle has significant implications for those involved in impaired driving cases, shifting the focus from liability to damages and injuries.

In prosecutions for operating while impaired, the Kienapple principle comes into play. Drawn from Kienapple v. R., 1 SCR 729 , it prevents a person from being convicted and punished twice for the same offence arising from the same transaction. This means that only one conviction can be entered when both charges are typically laid together. While this principle may create confusion, it is essential to understand its implications in impaired driving cases.

A Canadian lawyer should watch for the potential to use a client's prior operating-while-impaired conviction as presumptive proof of impairment in a subsequent civil lawsuit, potentially shifting the focus from liability to damages and injuries.

Source: Original reporting via Briefly