Breathalyzer
The Indiana State Police was the first law enforcement agency in North America to have authorized the use of the famed "Drunk-o-meter", a chemical test to determine levels of alcohol intoxication, which was invented in 1938 by Rolla N. Harger, M.D., a professor at Indiana University. In 1954, an improved version of the device followed and was called the Breathalyzer, invented by Indiana State Police Captain Robert F. Borkenstein in collaboration with Dr. Harger. This successful device has since been used by police agencies to assess alcohol impairment in drunken driving offenses.
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