Frontier Investigator
- Godina: 1949
- Country: United States of America
- Žanr: Action, Western
- Studio: Republic Pictures
- Ključna riječ: brother, murder, mail
- Direktor: Fred C. Brannon
- Uloge: Allan Lane, Black Jack, Eddy Waller, Roy Barcroft, Gail Davis, Robert Emmett Keane
