Does the exclusionary rule apply to supervised release proceedings?

We review for clear error a district court's factual findings on a challenged suppression order and we review de novo its resolution of questions of law and mixed questions of law and fact, including the existence of a reasonable suspicion. See United States v. Singletary, 798 F.3d 55, 59 (2d Cir. 2015). As an initial matter, we have yet to decide whether the exclusionary rule applies to supervised release revocation proceedings. We need not decide that issue in this case, however. For the

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