OPINION
We voted to rehear this case en banc to reconsider our circuit precedent on the standard of review applicable to summary judgment decisions in cases brought pursuant to the Freedom of Information Act (“FOIA”), 5 U.S.C. § 552. We agree with the three-judge panel that the appropriate standard of review is de novo.
We adopt and reiterate the reasoning set' forth by the three-judge panel in its concurrence. Under our usual practice, “[w]e review the district court’s grant or denial of motions for summary judgment de novo.” Ariz. Dream Act Coal. v. Brewer,
Most FOIA cases are resolved by the district court on summary judgment, with the district court entering judgment as a matter of law. See Wickwire Gavin, P.C. v. U. S. Postal Serv.,
[I]n essence, we treat the-judgment as if it were a bench trial: We first determine, de novo, “whether an adequate factual basis exists to support the district court’s decisions.” If not, we must remand for further development of the record. If such a basis does exist, “then the district court’s conclusions of fact are reviewed for clear error” — which is the way in which the proceeding is treated like a bench trial — “while legal rulings, including its decision that a particular exemption applies, are reviewed de novo.”
This “two-step test,” Lion Raisins Inc. v. U.S, Dep’t of Agric.,
In reviewing our precedents, as well as those of our sister circuits, we conclude there is no principled distinction to be drawn between our usual summary judgment standard and the standard to be applied in FOIA cases. We have noted the oddity of this analytic difference: “By definition, summary judgment may be granted only when there are no disputed issues of
In short, there is “no compelling reason to depart from a pure de novo standard,” Halpern v. FBI,
In striking a balance between the incompatible notions of disclosure and privacy when it enacted FOIA in 1966, Congress established — in the absence of one of that law’s clearly delineated exemptions — a general, firm philosophy of full agency disclosure, and provided de novo review by federal courts so that citizens and the press could obtain agency information wrongfully withheld. De novo review was deemed essential to prevent courts reviewing agency action from issuing a meaningless judicial imprimatur on agency discretion.
Id.
Accordingly, we adopt a de novo standard of review for summary judgment decisions in FOIA cases. Church of Scientology,
Consistent with our usual procedure, if there are genuine issues of material fact in a FOIA case, the district court should proceed to a bench trial or adversary hearing. Resolution of factual disputes should be through the usual crucible of bench trial or hearing, with evidence subject to scrutiny and witnesses subject to cross-examination. The district court must issue findings of fact and conclusions of law. Fed. R. Civ. P. 52(a)(1). Our review remains the same as in all civil cases: we review the findings of fact for clear error and the conclusions of law de novo. See OneBeacon Ins. Co. v. Haas Indus., Inc.,
We confine our en banc consideration to the question of controlling circuit precedent. We decline as an 'en banc court to reach any other issue presented by the parties. The three-judge panel that heard the appeal was bound by the standard articulated in Church of Scientology and issued its opinion based on that assumption. In issuing our order granting rehearing en banc, we declared that the three-judge panel opinion should not be cited as precedent by or to any court of the Ninth Circuit. Animal Legal Def. Fund v. FDA,
REMANDED.
Notes
. If "the parties do not dispute that the court had an adequate basis for its decision, we review de novo the court's conclusion” that the documents are exempt from disclosure. Lissner v. U.S. Customs Serv.,
. See Church of Scientology Int’l v. U.S. Dep’t of Justice,
. All pending motions are DENIED as moot, without prejudice to renewal before the three-judge panel,
