Frontier Investigator
- Yil: 1949
- Mamlakat: United States of America
- Janr: Action, Western
- Studiya: Republic Pictures
- Kalit so'z: brother, murder, mail
- Direktor: Fred C. Brannon
- Cast: Allan Lane, Black Jack, Eddy Waller, Roy Barcroft, Gail Davis, Robert Emmett Keane
