John Augustus Larson

John Augustus Larson was a police officer of the Berkeley Police Department, California, United States, and famous for his invention of modern polygraph used in forensic investigations. He was the first American police officer having an academic doctorate and to use polygraph in criminal investigations. After famed career in criminal investigation, he died of heart attack in Nashville, Tennessee at the age of 72.

Personal facts

Given name
John Augustus
Family name
Larson
Birth date
1892-12-11
Birth place
Canada Nova Scotia Shelburne County, Nova Scotia

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