> Good faith provides an exception to the Fourth Amendment exclusionary rule barring the use at trial of evidence obtained pursuant to an unlawful search and seizure. If officers had reasonable, good faith belief that they were acting according to legal authority, such as by relying on a search warrant that is later found to have been legally defective, the illegally seized evidence is admissible under this exception.
> Good faith provides an exception to the Fourth Amendment exclusionary rule barring the use at trial of evidence obtained pursuant to an unlawful search and seizure. If officers had reasonable, good faith belief that they were acting according to legal authority, such as by relying on a search warrant that is later found to have been legally defective, the illegally seized evidence is admissible under this exception.
https://www.law.cornell.edu/wex/good_faith_exception_to_excl...
It's unfortunate for the defendant, but does follow existing precedent.