What is a reasonable suspicion of criminal activity when a police officer stops to check for identification?

Reasonable suspicion exists when an officer is aware of specific articulable facts that warrant suspicion that the person to be detained may have committed or is about to commit a crime. United States v. Burnette, 698 F.2d 1038, 1047 (9th Cir.1983) (citations omitted). Where a police bulletin is issued on the basis of articulable facts supporting a reasonable suspicion that someone has committed a crime, reliance on that bulletin justifies a stop to check for identification. United States v. Hensley, 469 U.S. 221, 232 (1985).