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Criminal Procedure • Exclusionary Rule
CRIMPRO#012
Legal Definition
The sufficiency of a warrant based on a tip by an informant is determined by the totality of the circumstances, including the reliability, credibility, and basis of knowledge. The informant can be anonymous.
Plain English Explanation
Warrants can be based on tips from civilians (even done anonymously), but the information and its source must be scrutinized. In other words, the government isn't allowed to go breaking down peoples' doors with warrants every time it receives a criminal tip. But when the informant is reasonably reliable, and the information is likely to be accurate or—given the circumstances of the information—worth looking into, it can be used as a basis for probable cause in getting a warrant.
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