What happens if the police had a warrant, but it was based on a lie?

If a law enforcement officer intentionally or recklessly included false information in the affidavit for a warrant, your attorney can request a Franks Hearing. During this hearing, the defense challenges the truthfulness of the officer’s statements. If the judge finds the officer was dishonest and that the warrant would not have been issued without those lies, any evidence found during the search will likely be suppressed.