Opinion for the Court filed by Circuit Judge EDWARDS.
This case involves information obtained by wiretap pursuant to Title III of the Omnibus Crime Control and Safe Streets Act of 1968 (“Title III”).
1
Mr. Lam Lek Chong brought an action under the Freedom of Information Act (“FOIA”) seeking access to certain transcripts of electronically intercepted communications in the possession of the United States Drug Enforcement Administration (“DEA” or the “agency”). The District Court granted summary judgment for the DEA, holding that the product of Title III surveillance is immune from disclosure under Exemption 3 of the FOIA.
See Lam v. DEA,
Civ. Action No.
*731
85-3726,
We find that material obtained under Title III falls within the scope of Exemption 3. Because Title III identifies “intercepted communications” as “particular types of matters to be withheld” within the meaning of Exemption 3(B), it constitutes a valid statutory basis for nondisclosure. Thus, the District Court properly sustained the DEA’s claimed exemption for wiretap transcripts. We also find that the District Court acted well within its discretion in finding it unnecessary to conduct in camera review of records withheld by the agency under alternative exemptions. Accordingly, we affirm the District Court, judgment in its entirety.
I.BACKGROUND
In July 1975, Mr. Lam was convicted of a criminal offense in the state of New York. During the course of his trial and the ensuing appellate proceedings, he became aware that the DEA was in possession of documents and audio recordings relating to him that were neither introduced at trial nor made available to his defense attorneys. See Complaint, reprinted in App. 2. This case arises from Mr. Lam’s efforts to obtain the materials in question under the FOIA.
Mr. Lam submitted his first FOIA request to the DEA in August 1978, seeking copies of all records pertaining to him in the Washington office. As a result of this initial request, 281 full or partial pages of material were released to Mr. Lam. A subsequent request, focusing on the disclosure of undercover transcripts or recordings, resulted in the release of an additional 545 full or partial pages. See Lam, mem. op. at 2-4, reprinted in App. 122-24.
In responding to the two requests, the DEA withheld approximately 190 full pages of material, and excised further information from a number of the documents released. In addition to Exemption 3, the agency invoked FOIA Exemptions 2, 5 and 7(D), (E) and (F) 3 in support of its decision to withhold. See id. at 1, reprinted in App. 121. The Department of Justice Office of Information and Privacy denied Mr. Lam’s subsequent administrative appeal and affirmed the DEA withholdings.
Mr. Lam filed a FOIA action in the District Court in November 1985. The DEA responded with a motion for summary judgment, accompanied by an itemized index of withheld material and the affidavit of a DEA Freedom of Information Specialist. See Lam, mem. op. at 4, reprinted in App. 124. Apparently dissatisfied with the DEA’s 1,000-page index, Mr. Lam moved for production of a more complete -index and then requested that the District Court conduct in camera review of the withheld material before ruling on the claimed FOIA exemptions. See id. at 4-5, reprinted in App. 124-25; Brief of Appellant at 4. The DEA filed a supplemental affidavit with its opposition to Mr. Lam’s motion. See Lam, mem. op. at 4-5, reprinted in J.A. 124-25.
The District Court granted summary judgment for the DEA on March 14, 1988. The trial court first sustained the adequacy of the DEA withholding index and accom *732 panying affidavits, ruling in camera review unnecessary. Lam, mem. op. at 5-6, reprinted in App. 125-26. The District Court then proceeded to approve each of the FOIA exemptions invoked by the agency. In relevant part, it held that transcripts of electronic interceptions are “specifically exempted from disclosure” by Title III and hence protected from disclosure under Exemption 3. Id. at 12-13, reprinted in App. 132-33. The District Court denied Mr. Lam’s subsequent motion to alter or amend its earlier decision, see Lam v. DEA, Civ. Action No. 85-3726 (D.D.C. Apr. 19, 1989), reprinted in App. 152, and this appeal ensued.
II. Analysis
A. Title III
FOIA Exemption 3 permits agencies to withhold material that is “specifically exempted from disclosure by statute” provided that the statute invoked either “(A) requires that the matters be withheld from the public in such a manner as to leave no discretion on the issue, or (B) establishes particular criteria for withholding or refers to particular types of matters to be withheld.” 5 U.S.C. § 552(b)(3). Because this case turns in critical part on the interaction between Title III and FOIA Exemption 3, we begin our analysis with an examination of Title III itself.
In enacting Title III, Congress sought to regulate comprehensively both the use of electronic surveillance as an investigative tool and the disclosure of materials obtained through such surveillance.
See Gelbard v. United States,
Title III safeguards privacy in the first instance by significantly restricting the initiation of electronic surveillance. Surveillance techniques are authorized only in the investigation of specified serious offenses. See 18 U.S.C. § 2516(1) (1988). All surveillance is subject to prior judicial approval, issued in accordance with detailed application procedures and on a showing and finding of probable cause. See 18 U.S.C. § 2518 (1988). Moreover, the government may not resort to electronic surveillance unless normal investigative methods are demonstrably infeasible. See 18 U.S.C. § 2518(3)(c).
Congressional sensitivity to privacy rights is perhaps most evidently reflected in Title Ill’s strictly limited disclosure provisions. Apart from two instances in which judges authorizing interception may, at their discretion, release intercepted material to parties overheard, see 18 U.S.C. § 2518(8)(d), (10)(a), use and disclosure is governed by section 2517 of the statute. Section 2517 permits disclosure of intercepted communications in three circumstances only:
(1) Any investigative or law enforcement officer who, by any means authorized by this chapter, has obtained knowledge of the contents of any wire, oral, or electronic communication ... may disclose such contents to another investigative or law enforcement officer to the extent that such disclosure is appropriate to the proper performance of the official duties of the officer making or receiving the disclosure.
(2) Any investigative or law enforcement officer ... may use such contents to the extent such use is appropriate to the proper performance of his official duties. (3) Any person who has received, by any means authorized by this chapter, any information concerning a wire, oral, or electronic communication ... may disclose the contents ... while giving testimony under oath....
18 U.S.C. § 2517(1)-(3) (1988). Moreover, Title III explicitly authorizes the recovery of civil damages by persons whose communications are disclosed in violation of the *733 statute. 18 U.S.C. § 2520 (1988). Taken together, these provisions represent a comprehensive statutory scheme dedicated to preserving personal privacy by sharply limiting the circumstances under which surveillance may be undertaken and its fruits disclosed.
B. Exemption S
It is undisputed that intercepted communications of the sort at issue in this case are “specifically exempted from disclosure” by Title III as contemplated by the threshold provision of Exemption 3.
See
note 2
supra. Cf. American Friends Serv. Comm. v. Webster,
We find that Title III falls squarely within the scope of subsection (B)’s second prong, as a statute referring to
“particular types of matters to be withheld.”
On its face, Title III clearly identifies intercepted communications as the subject of its disclosure limitations.
See
18 U.S.C. § 2517 (“Authorization for disclosure and use of intercepted wire, oral, or electronic communications”). And Title Ill’s specification of the type of matter to be withheld is at least as narrow and well-defined as others to which we have applied subsection (B)’s second prong.
See, e.g., Mudge Rose Guthrie Alexander & Ferdon v. ITC,
Most important, the policy underlying subsection (B) dictates that Title III be treated as an exempting statute. Subsection (B)’s second prong is intended to reach those statutes in which Congress itself has manifested a determination that certain specified material should remain confidential.
See CNA Fin. Corp. v. Donovan,
We reject the suggestion of Mr. Lam that subsection (B) is inapplicable where, as here, a statute identifies matters to be withheld by reference not to their content, but instead to the process by which they are collected. As Mr. Lam notes, Title III exempts from disclosure any kind of information that is electronically intercepted, regardless of its subject matter and solely by virtue of the means by which it is obtained.
See
Reply Brief of Appellant at 8. In this respect, Title III is much like the National Security Act, which has been held to be an Exemption 3 statute under the second prong of subsection (B).
See CIA v. Sims,
*734
In light of
Sims,
we can see no reason why Title III should be disqualified as an Exemption 3 statute simply because it defines matters to be withheld on the basis of process. It is true, as Mr. Lam argues, that such process definitions might be so broad as to defeat the “general philosophy of full agency disclosure” which underlies FOIA.
See, e.g.,
S.Rep. No. 813, 89th Cong., 1st Sess. 3 (1965).
4
If, for instance, some hypothetical statute specified “materials found in any agency file” as a “type of matter to be withheld,” we would undoubtedly find the reference insufficiently particularized to satisfy subsection (B)’s second prong. The process at issue in this case, however — the electronic interception of communications — is a severely restricted one. Identification of matter to be withheld by reference to this process simply does not carry the potential for wholesale agency nondisclosure.
See Medina-Hincapie,
Thus, we conclude that Title III “refers to particular types of matters to be withheld” within the meaning of subsection (B)'s second prong. Because subsection (B)’s limiting conditions are phrased in the disjunctive, a statute need satisfy only one of the cited conditions to qualify under Exemption 3,
see Association of Retired R.R. Workers, Inc. v. United States R.R. Retirement Bd.,
Albeit limited, our holding should
not
be taken to suggest that Title III does not impose constraints on agency use and disclosure of intercepted communications. Section 2517 of Title III permits just three types of disclosure: disclosure by one law enforcement officer to another in the line of official duty, 18 U.S.C. § 2517(1); disclosure by a law enforcement officer “to the extent such use is appropriate to the proper performance of his official duties,” 18 U.S.C. § 2517(2); and disclosure by any person while giving testimony under oath, 18 U.S.C. § 2517(3).
See, e.g., United States v. Gerena,
C. In Camera Review
Finally, we reach Mr. Lam’s contention that the District Court erred by declining to conduct an in camera inspection of documents withheld by the DEA pursuant to various FOIA exemptions. According to Mr. Lam, the DEA’s index of withheld material was inadequate, necessitating in camera review to evaluate properly the validity of DEA claims under FOIA Exemptions 2, 5 and 7. See Brief of Appellant at 35-40. We find Mr. Lam’s argument to be without merit.
Section 552(a) of the FOIA, 5 U.S.C. § 552(a)(4)(B), permits but does not require
in camera
review of withheld documents. The decision whether to perform
in camera
inspection is left to the “broad discretion of the trial court judge.”
See Carter v. Department of Commerce,
The index submitted by the DEA in this case consisted of a separate document for each page withheld or excised, describing the type of record withheld, the nature of the information withheld and the exemption claimed.
See
App. 158-66;
cf. King v. Department of Justice,
After considering Mr. Lam’s objections, the District Court ruled the DEA index and accompanying affidavits sufficient and in camera review unnecessary:
[i]n sum, DEA has compiled an indexed itemization which sets forth a description of every page of relevant DEA documents requested by plaintiff either withheld or excised pursuant to its exemption claims. The affidavits of [DEA] also provide a specific narrative description of the creation of these documents and set[] forth specific reasons for the invocation of each exemption. DEA’s itemization, with accompanying affidavits, clearly meets the summary judgment standard and an in camera inspection of these documents is therefore unnecessary.
Lam, mem. op. at 6 (citation omitted), reprinted in App. 126. We find nothing in the record to suggest that the District Court abused its discretion, and we will not disturb its ruling on review.
III. Conclusion
We affirm the District Court judgment in its entirety. Title III is an exempting statute under FOIA Exemption 3 because it “refers to particular types of matters to be withheld” within the meaning of Exemption 3(B)’s second prong. Therefore, the District Court properly held the transcripts of intercepted communications sought by Mr. Lam protected from disclosure under FOIA Exemption 3. The District Court *736 also acted well within its discretion in sustaining the DEA’s other claims to exemption without conducting in camera review of the withheld documents. Accordingly, the District Court grant of summary judgment for the DEA is affirmed.
So ordered.
Notes
. 18 U.S.C. § 2510 et seq. (1988).
.The relevant statutory provision reads as follows:
(b) This section does not apply to matters that are—
(3) specifically exempted from disclosure by statute (other than section 552b of this title), provided that such statute (A) requires that the matters be withheld from the public in such a manner as to leave no discretion on the issue, or (B) establishes particular criteria for withholding or refers to particular types of matters to be withheld....
5 U.S.C. § 552(b)(3) (1988).
.5 U.S.C. § 552(b)(2), (5), (7)(D)-(F).
. The Supreme Court has consistently observed that “[tjhe Freedom of Information Act sets forth a policy of broad disclosure of Government documents in order ‘to ensure an informed citizenry, vital to the functioning of a democratic society.’ ”
FBI v. Abramson,
. An additional check on agency discretion is provided in this case by the fact that Title III subjects the collection of intercepted communications to judicial control.
See
18 U.S.C. § 2518. Because the creation of nondisclosable records is strictly monitored by the courts, agencies are without power to expand the class of material covered by Title Ill's withholding directive.
Cf. American Jewish Congress,
.Contrary to Mr. Lam’s suggestion, the standards established by section 2517 are in no way undermined by the judicial disclosure provisions of section 2518. That a statute provides for release of information at the discretion of a judge is simply irrelevant to analysis under subsection (B). FOIA’s concern is with the exercise of unbridled
agency
discretion over document disclosure, and not with judicial discretion.
See GTE Sylvania, Inc. v. Consumers Union of the United States,
