The following excerpt is from United States v. Connolly, 479 F.2d 930 (9th Cir. 1973):
Even certain knowledge that contraband is within a dwelling does not constitute probable cause to arrest whoever happens to be inside. See Johnson v. United States, 333 U.S. 10, 15-17, 68 S.Ct. 367, 92 L.Ed. 436 (1948).
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