The following excerpt is from U.S. v. Ani, 138 F.3d 390 (9th Cir. 1998):
where violation of an agency regulation does not raise a constitutional question and defendant cannot reasonably contend that he relied on the regulation, or that its breach had any effect on his conduct, he may not in a criminal prosecution seek judicial enforcement of the agency regulation by means of the exclusionary rule.
United States v. Choate, 619 F.2d 21, 23 (9th Cir.1980) (internal quotations omitted).
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