Facts
- A rape victim in Dover, Delaware described her attacker and his clothing, including a white thermal undershirt, black pants with a metallic buckle, a brown leather three-quarter-length coat, and a dark knit cap.
- Jerome Franks was in custody on an unrelated matter when police pursued him as a suspect in the rape.
- Detectives sought a warrant to search Franks’s apartment for evidence, including clothing and a knife.
- The warrant application relied on a sworn police affidavit that included statements attributing corroborating clothing descriptions to Franks’s employers.
- Franks moved to suppress the seized items, alleging the affidavit contained materially false factual statements and requesting an evidentiary hearing to challenge the affidavit’s truthfulness through witness testimony.
- The trial court refused to permit any inquiry beyond the face of the affidavit, denied suppression, and the evidence was admitted at trial.
- Franks was convicted, and the Delaware Supreme Court affirmed based on a rule barring any post-issuance challenge to the affidavit’s veracity.
Issues
- Whether the Fourth and Fourteenth Amendments permit a criminal defendant to challenge the truthfulness of factual statements in a warrant affidavit after a warrant issues ex parte.
- What showing is required to obtain an evidentiary hearing to contest alleged falsehoods in a warrant affidavit.
- What remedy applies if intentional or reckless, material false statements are proven and probable cause fails without them.
Decision
- The Supreme Court reversed and remanded.
- The Court held that, upon a defendant’s request, the Fourth Amendment requires an evidentiary hearing if the defendant makes a substantial preliminary showing that the affiant included a false statement knowingly and intentionally, or with reckless disregard for the truth, and the statement was necessary to probable cause.
- The Court rejected an absolute rule barring any challenge to warrant-affidavit veracity.
- The Court limited the doctrine to intentional or reckless falsehoods by the affiant; negligence or innocent mistake is insufficient.
- The Court directed the lower court to evaluate the adequacy of Franks’s proffer under the announced standard.
Legal Principles
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Warrant affidavits carry a presumption of validity, but that presumption can be rebutted under a defined procedure.
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A defendant is entitled to a hearing only after a substantial preliminary showing that:
- the affiant included a false statement knowingly and intentionally, or with reckless disregard for the truth; and
- the challenged statement was necessary to the finding of probable cause.
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The request for a hearing must be nonconclusory, identify the specific allegedly false portions, and be supported by an offer of proof (such as affidavits or other reliable statements, or an explanation for their absence).
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If, after setting aside the challenged material, the remaining affidavit content still establishes probable cause, no hearing is required.
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At the hearing, if the defendant proves by a preponderance of the evidence that the affiant’s intentional or reckless false statement was included and was necessary to probable cause, the warrant must be voided and the fruits of the search excluded as if probable cause were lacking on the face of the affidavit.
Conclusion
The Court required a limited post-issuance procedure to test the truthfulness of warrant affidavits: when a defendant makes a substantial, supported preliminary showing that the affiant intentionally or recklessly included a material falsehood essential to probable cause, the defendant must receive an evidentiary hearing, and proven material falsity requires suppression.