United States v. Valentin Escamilla and Cosme Sanes Escamilla , 560 F.2d 1229 ( 1977 )
United States v. Severino Cruz-Hernandez , 62 F.3d 1353 ( 1995 )
United States v. Brignoni-Ponce , 95 S. Ct. 2574 ( 1975 )