No free photograph
John Augustus Larson
American inventor (1892-1965) · United States · On the map · Scientists · Died at 72
John Augustus Larson was a police officer and forensic psychiatrist and became famous for his invention of the modern polygraph device used in forensic investigations. He was the first American police officer with an academic doctorate and to use the polygraph in criminal investigations.
John Augustus Larson is read about 17 times a day, in 7 languages.
A typical day, 30 days to 4 July 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
Something wrong?Also in Deutsch
About this person
After a famed career in criminal investigation, he died of a heart attack in Nashville, Tennessee, at the age of 73.
Country
United States
Category
Scientists
Type
Scientist
Status
Deceased
Dates
Lived 1892 to 1965 · aged 72
