When police stop a suspected drunk driver, standard protocol is to have the driver complete a set of field sobriety tests and take a breath test to determine their blood alcohol content. Each time a person with alcohol in their system breathes out, they expel a small amount of vaporized alcohol. Breathalyzer machines are calculated to detect the infrared radiation, or IR, of ethanol, the chemical in alcoholic beverages that causes intoxication. Different organic compounds have different IR wavelengths.
The Commercial Vehicle Safety Alliance held its annual Brake Safety Week from Sept. 16 to 22, inspecting trucks and other commercial vehicles at random to check for compliance with brake safety rules. Truckers in West Virginia may remember it, but even if their vehicles were not checked, they will want to know the results of the spree.