Larson Polygraph - City of Berkely Police Dept.
date: label: date made
content: 1921
notes: label: Description
content: In 1921, the Chief of Police in Berkeley, Ca., asked John Augustus Larson (1892-1965), a policeman then studying at the University of California at Berkeley, to build a polygraph suitable for police work. This is that instrument. It was also the first that was capable of simultaneously recording blood pressure changes, pulse rate and respiration.
label: Description
content: Ref: John A Larson, Lying and Detection: A Study of Deception and Deception Tests (Glen Ridge, 1932).
label: Description
content: “Lie Detector Pioneer Dies,”[Baltimore] Sun (Sept. 23, 1965), p. 19.
label: Location
content: Currently not on view
label: Location
content: Currently not on view (paper)
place: label: place made
content: United States: California, Berkeley
title: label: Title
content: Polygraph
topic: label: Subject
content: Psychology
setName: label: See more items in
content: Medicine and Science: Medicine
creditLine: label: Credit Line
content: Gift from the City of Berkeley Police Department
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MG.322715.01
label: catalog number
content: 322715.01
label: accession number
content: 322715
objectType: label: Object Name
content: Lie Detector
label: Object Name
content: lie detector
physicalDescription: label: Physical Description
content: metal; wood; rubber; glass (overall (polygraph) material)
label: Physical Description
content: paper (tape material)
label: Physical Description
content: wood (case material)
label: Physical Description
content: glass (case material)
label: Measurements
content: case: 63 cm x 142.5 cm x 46.5 cm; 24 13/16 in x 56 3/32 in x 18 5/16 in