![TBA](/sites/default/files/styles/sitewide_hero/public/2024-04/Singoring%201000x745.jpg?h=09117f09&itok=5LF9hbDZ)
Ethel Lang in The Hidden Truth, a radio series adapted from American scripts starring the inventor of the lie detector who used his own invention to solve crimes.
The series was produced by Hilda Scurr, c1960.
The National Film and Sound Archive of Australia acknowledges Australia’s Aboriginal and Torres Strait Islander peoples as the Traditional Custodians of the land on which we work and live and gives respect to their Elders both past and present.