Warning: Whether the screening device or evidentiary breath testing instrument is reliable or unreliable, it is still a criminal offence in Canada and some other jurisdictions to refuse a proper demand by a police officer to provide a breath sample. 

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Title: Mouth Alcohol Resulting in 303 mg/100mls Apparent BAC

Instrument: Intoxilyzer 5000C

Video taken during controlled alcohol testing. Subject with well-documented true blood alcohol concentration between 116 and 120 mgs/100mls blows 303 mgs/100 mls as a result of mouth alcohol bias. Mouth alcohol detection algorithm fails to flag phenomenon as "Invalid Sample".

Mouth Alcohol Bias 303 Apparent BAC ,116-120 True BAC, Intoxilyzer 5000C

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Submitted: 17/04/2009 7:03:46 PM

Last Updated: 20090423074721

 

 

Warning: Whether the screening device or evidentiary breath testing instrument is reliable or unreliable, it is still a criminal offence in Canada and some other jurisdictions to refuse a proper demand by a police officer to provide a breath sample.