Frontier Investigator
- Ano: 1949
- País: United States of America
- Xénero: Action, Western
- Estudo: Republic Pictures
- Palabra clave: brother, murder, mail
- Director: Fred C. Brannon
- Reparto: Allan Lane, Black Jack, Eddy Waller, Roy Barcroft, Gail Davis, Robert Emmett Keane
