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December 31 - January 6 December 31, 1938 Rolla N. Harger, Indiana University Professor of biochemistry and toxicology, introduced the "Drunkometer." This was the first tool used to determine blood alcohol levels by using an individual's breath.
An early version of the device was invented by a professor at Indiana University before being redesigned by a scientist with the Indiana State Police in the 50s.
An early version of the device was invented by a professor at Indiana University before being redesigned by a scientist with the Indiana State Police in the 50s.
An early version of the device was invented by a professor at Indiana University before being redesigned by a scientist with the Indiana State Police in the 50s.
An early version of the device was invented by a professor at Indiana University before being redesigned by a scientist with the Indiana State Police in the 50s.