The following excerpt is from U.S. v. Haddad, 558 F.2d 968 (9th Cir. 1977):
Assuming also the illegality of the first two searches, we find that they did not taint the successful third search. The pistol was not found as a result of the exploitation of the prior illegal searches. Wong Sun v. United States, 371 U.S. 471, 438, 83 S.Ct. 407, 9 L.Ed.2d 441 (1963). The police learned nothing in the third search. The mere existence of fruitless unlawful searches does not taint a subsequent lawful one.
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