475 U.S. 335 (1986) Cited 9,156 times 5 Legal Analyses
Holding that a reasonably well-trained officer who would have known that his affidavit failed to establish probable cause and that he shouldn't have applied for a warrant violates an arrestee's Fourth Amendment right against unreasonable seizures and does not enjoy qualified immunity when he arrests someone based on the warrant he nonetheless procured from a judicial officer