During a Franks hearing, the defendant must prove the affidavit contains
allegations that are knowingly and intentionally false or in reckless
disregard of the truth and that the statements were material—"necessary
to the magistrate's finding of probable cause.”
Franks v. Delaware (1978) 438 U.S. 154. A Franks Hearing is similar to a suppression hearing.
During a suppression hearing a defendant can introduce evidence to prove
that some of the allegations or statements contained in the officer's
affidavit used to obtain a search warrant that yielded incriminating evidence