Special Investigator is a 1936 RKO Radio Pictures American crime-drama film, starring Richard Dix and featuring Margaret Callahan, Erik Rhodes and Owen Davis, Jr. It was directed by Louis King from a screenplay by Louis Stevens, Thomas Lennon and Ferdinand Reyher, based on "Fugitive Gold", a story by Erle Stanley Gardner originally serialized in the New York Herald Tribune's This Week magazine from May 26–July 7, 1935.