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Supreme Court of Canada upholds impaired driving convictions based on breath tests
The Supreme Court affirmed prosecutors must prove breath machine calibration and meet evidentiary standards to rely on breath test results in impaired driving cases.
- On Nov. 14, 2025 the Supreme Court of Canada upheld impaired driving convictions in two cases, a decision reported by Jim Bronskill, The Canadian Press.
- The law requires a breath machine calibration check and that its result fall within a particular range, while the Supreme Court examined the evidence needed to prove this check passed.
- The court considered what must be established to use breath test results in court, and related decisions Friday clarify the evidentiary scheme for blood alcohol concentration under the Criminal Code.
- The court reviewed whether the New Brunswick Court of Appeal erred in interpreting what the Crown must prove to satisfy a presumption that breath test results are accurate, framing the appeals the top court resolved.
- The 2018 criminal law amendments aimed to streamline breath-test prosecutions, and the Supreme Court rulings clarify that evidentiary framework for impaired driving cases.
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25 Articles
25 Articles
The Supreme Court of Canada confirmed the conditions for impaired driving in two cases, stating that the 2018 amendments to criminal law were intended to streamline proceedings based on ethylometer results.
·Montreal, Canada
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Supreme Court of Canada upholds impaired driving convictions based on breath tests
The Supreme Court of Canada has upheld impaired driving convictions in two cases, saying criminal law amendments enacted in 2018 were intended to streamline prosecutions based on breath test results
·Canada
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Total News Sources25
Leaning Left18Leaning Right0Center5Last UpdatedBias Distribution78% Left
Bias Distribution
- 78% of the sources lean Left
78% Left
L 78%
C 22%
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