What is the test for reasonable suspicion under the Fourth Amendment?

"A detention is reasonable under the Fourth Amendment when the detaining officer can point to specific articulable facts that, considered in light of the totality of the circumstances, provide some objective manifestation that the person detained may be involved in criminal activity. . . . [Citation.]" (People v. Souza (1994) 9 Cal.4th 224, 231 (Souza).) Under the reasonable suspicion standard, "if the circumstances are 'consistent with criminal activity,' they permiteven demandan investigation: the public

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