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Name: United States v. Miranda-Aguerena
Case #: 05-10198
Court: US Court of Appeals
District 9 Cir
Opinion Date: 04/25/2006

The question of whether evidence seized during a traffic stop must be suppressed under the Fourth Amendment does not depend upon whether the traffic stop violated state law. Rather, the question is whether the stop violated the Fourth Amendment. Regardless of whether Arizona law permits an officer to make a traffic stop if he does not personally witness the traffic violation, the Fourth Amendment allows an officer to base his reasonable suspicion on information from third parties.