Curio |
On This Day | North Dakota on the Cutting Edge of Crime Detection
Author
Josh Wolsky
There are at present only 18 polygraphs in the United States, 12 owned by the federal government. They were invented by Prof. Keeler and are manufactured in Oakland, California. North Dakota, Kansas, and California are the only states West of Chicago owning such equipment.
1938-12-29 | Ward County Independent
Why We Chose It
Shared as a curious bit of North Dakota history.
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