Matthew J. Ruff Federal Criminal Law Blog on Lawyers.com

 Yes, in the case of Alabama v. White, 496 U.S. 325 (1990). Montgomery police received an anonymous tip stating that defendant, carrying a brown briefcase filled with cocaine, would leave a specific unit of an apartment building and travel in her brown Plymouth station wagon, which had a broken taillight, to a specific motel. Police watched the apartment complex, and saw a brown Plymouth wagon with a broken taillight. They then watched defendant, empty-handed, exit the specified apartment, get into the car and drive directly toward the motel. Even though not every detail in the tip turned out to be totally correct, the partial corroboration by police alone provided reasonable suspicion for a stop.

Compare that with the Federal case of U.S. v. Alvarez, 899 F.2d 833 (9th Cir. 1990). Police received an anonymous phone call stating that in about 10 minutes the Bank of America would be robbed by a man armed with explosives. The informant went on to say that the robber, who drove a white Mustang GT, was tall, dark, looking kind of Mexican, and [. . .] probably in the back of the bank. Several patrol cars were dispatched to the bank; once there, the officers observed a white Mustang GT backed into a parking space, which struck the officers as a somewhat unusual way to position the vehicle. The Mustang had a Hispanic looking male occupant. While officers watched, the car remained where it was for at least 5 minutes; finally, a marked patrol car drove within the Mustang driver's line of sight, at which point the car left the bank parking lot. The law enforcement officers then stopped the car, based on reasonable suspicion; they had verified almost every detail of the tip and had seen behavior consistent with that of a typical bank robber which corroborated the tip.