How have the courts treated the issue of search and seizure during a traffic stop?

The case of United States v. Jarvi, supra, 537 F.3d 1256 sheds light on this factually-sensitive question. There, the police lawfully stopped the defendant's truck for a traffic violation, but during the stop they illegally searched the truck and may have unlawfully detained the defendant himself. During the stop, the police also spoke with the defendant's passenger, who made statements that led to a search of the defendant's residence that turned up guns, drugs and a large amount of cash. (Id. at p. 1257.) On

Page 21