U.S. at 450-51, 110 S.Ct. at 2485-86; Welch, 755 S.W.2d at 627. 14 . Brown v. Texas, 443 U.S. 47, 50, 99 S.Ct. 2637, 2640, 61 L.Ed.2d 357 (1979). 15 . Id. at 50-51, 99 S.Ct. at 2640-41. 16 . Id. at 51, 99 S.Ct. at 2640. 17 . Brown at 51, 99 S.Ct. at 2640. 18 . United States v. Montoya de Hernandez, 473 U.S. 531, 538, 105 S.Ct. 3304, 3309, 87 L.Ed.2d 381 (1985). 19 . National Treasury Employees Union v. Von Raab, 489 U.S. 656, 668, 109 S.Ct. 1384, 1392, 103 L.Ed.2d 685 (1989). 20 . 590 A.2d 990, 999 (D.C.App.1991). 21 . Sitz, 496 U.S. at 453-54, 110 S.Ct. at 2487. 22 . State v. Everson, 474 N.W.2d 695 (N.D.1991) (finding that a safety inspection checkpoint, the primary purpose of which was actually drug interdiction, to be constitutional); Merrett v. Moore, 58 F.3d 1547 (11th Cir.1995) (<HOLDING>). 23 . Galberth v. United States, 590 A.2d 990,
holding that for purposes of determining whether the roadblock worked a fourth amendment seizure the controlling considerations are whether 1 the motorist was meant to be stopped by the physical obstacle of the roadblock and 2 the motorist was so stopped holding unconstitutional a roadblock purportedly established to check for licenses and registrations which was in fact established for general law enforcement purposes holding warrant check lawful if detention not extended beyond time necessary to request license and registration and issue citation holding that a mixed motive roadblock used primarily to interdict drugs but also to check drivers licenses and registration was constitutional holding that the stop of defendants vehicle was unlawful where officers stopped the vehicle to check the license and registration but had observed no suspicious activity