The following excerpt is from U.S. v. Barcus, 50 F.3d 16 (9th Cir. 1995):
Under the 'independent source' doctrine, evidence that is found not as a result of an illegal search or seizure, but by independent means, is admissible. See Sequra v. United States, 468 U.S. 796, 813-14 (1984) ("whether the initial entry was illegal or not is irrelevant to the admissibility of the challenged evidence because there was an independent source for the warrant under which that evidence was seized."). This exception applies in the present case.
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