“People sniffer was the field name for a series of U.S. Army personnel detectors used during the Vietnam War. The purpose was to detect enemy soldiers in hidden positions, which were often employed in the jungle combat conditions of Vietnam.”
“The detection method used by people sniffers depended on effluents unique to human beings; such as those found in urine and sweat.”
“While useful, the detectors had to be used with some caution. People sniffers were known to be oversensitive and would often detect civilians or animals excreting bodily waste.”
