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Search Warrants: What They Are and When They're Necessary

Police officers obtain search warrants by convincing a judge or magistrate that they have "probable cause" to believe that criminal activity is occurring at the place to be searched or that evidence of a crime may be found there. If the magistrate believes there is probable cause to conduct a search, he or she will issue a warrant. The suspect can later challenge the validity of the warrant before trial.

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probable cause

The amount and quality of information police must have before they can arrest or search without a warrant or that a judge must have before she will sign a search warrant allowing the police to conduct a search or arrest a suspect. Reliable information must show that it's more likely than not that a crime has occurred and the suspect is involved.

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Can I refuse to let a police officer search my car during a traffic stop?

A cop pulled me over for running a red light, and then he searched me and my car. He didn't find anything, but I felt humiliated and violated by the whole thing. Was he allowed to do this? Could I have said no?

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