The following excerpt is from U.S. v. Serrano, 954 F.2d 727 (9th Cir. 1992):
2 An arresting officer's knowledge of the facts sufficient to constitute probable cause "may be based on the collective knowledge of all the officers involved in the investigation and all of the reasonable inferences that may be drawn therefrom." United States v. Hoyos, 892 F.2d 1387, 1392 (9th Cir.1989), cert. denied, 111 S.Ct. 80 (1990).
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