Stephen BissJan 4, 20233 minReliability: Flooded Sample Chamber 1It is very easy for a qualified technician to accidentally flood the sample chamber on an Intoxilyzer 5000 (or 5000C) or an 8000 (or...
Stephen BissDec 28, 20222 minReliability: Aging - Losing MemoryThe Intoxilyzer® 8000 depicted in this video was once a reliable evidentiary breath testing instrument in the United States. It is...
Stephen BissDec 21, 20226 minContinuity of Alcohol Standard Solution: Keep from FreezingMany years ago I asked for timely disclosure/production of a representative bottle of the alcohol standard lot used during the breath...
Stephen BissDec 8, 20226 minWhat is Differential Voltage Monitoring (DVM) ?Many years ago Ontario defence lawyers cross-examined breath techs on "how much room there was" on the particular Intoxilyzer 5000C to...