Congressional Requests for Information From Inspectors General Concerning Open Criminal Investigations ( 1989 )


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  •              Congressional Requests for Information
    from Inspectors General Concerning
    Open Criminal Investigations
    Long-established executive branch policy and practice, based on consideration of both
    Congress’ oversight authority and principles of executive privilege, require that in the
    absence of extraordinary circumstances an Inspector General must decline to provide
    confidential information about an open criminal investigation in response to a request
    pursuant to Congress’ oversight authonty
    The reporting provisions of the Inspector General Act do not require Inspectors General
    to disseminate to Congress confidential information pertaining to open criminal
    investigations.
    March 24, 1989
    M emorandum O pinion for the C hairman
    I nvestigations /L aw E nforcement C ommittee
    P resident ’s C ouncil on I ntegrity and E fficiency
    Introduction and Summary
    This memorandum is in response to your request for the opinion of this
    Office on the obligations of Inspectors General (“IGs”) with respect to
    congressional requests for confidential information about open criminal
    investigations. Specifically, you have asked this Office to advise you as to
    the obligations of the IGs with respect to (1) requests based on Congress’
    oversight authority and (2) requests based on the reporting requirements
    of the Inspector General Act of 1978 (“the Act”), Pub. L. No. 95-452, 
    92 Stat. 1101
     (1978) (codified at 5 U.S.C. app. 3).1
    As discussed below, when pursuant to its oversight authority Congress
    seeks to obtain from an IG confidential information about an open crim­
    inal investigation, established executive branch policy and practice,
    based on consideration of both Congress’ oversight authority and princi­
    ples of executive privilege, require that the IG decline to provide the
    information, absent extraordinary circumstances. With respect to con­
    gressional requests based on the congressional reporting requirements of
    the Act, we have concluded as a matter of statutory construction that
    Congress did not intend those provisions to require production of confi­
    1 On March 8,1989, Larry Elston of your staff oraJly confirmed to Paul Colbom of this Office that these
    are the questions on which you seek our opinion
    77
    dential information about open criminal investigations. Accordingly, IGs
    are under no obligation under the Act to disseminate confidential law
    enforcement information.
    I. Congressional Requests Based on Oversight Authority
    The decision on how to respond to a congressional request for infor­
    mation from an IG based on Congress’ oversight authority requires the
    weighing of a number of factors arising out of the separation of powers
    between the executive and legislative branches. The principal factors to
    be weighed are the nature of Congress’ oversight interest in the informa­
    tion and the interest of the executive branch in maintaining confidential­
    ity for the information.
    A. Congress’Oversight Authority
    The constitutional role of Congress is to adopt general legislation that
    will be implemented — “executed” — by the executive branch. “It is the
    peculiar province of the legislature to prescribe general rules for the gov­
    ernment of society; the application of those rules to individuals in society
    would seem to be the duty of other departments.” Fletcher v. Peck, 10 U.S.
    (6 Cranch) 87, 136 (1810). The courts have recognized that this general
    legislative interest gives Congress investigatory authority. Each House of
    Congress has power, “through its own process, to compel a private indi­
    vidual to appear before it or one of its committees and give testimony
    needed to enable it efficiently to exercise a legislative function belonging
    to it under the Constitution.” McGrain v. Daugherty, 
    273 U.S. 135
    , 160
    (1927). The issuance of subpoenas in aid of this function “has long been
    held to be a legitimate use by Congress of its power to investigate,”
    Eastland v. United States Servicemen’s Fund, 
    421 U.S. 491
    , 504 (1975),
    provided that the investigation is “related to, and in furtherance of, a
    legitimate task of the Congress.” Watkins v. United States, 
    354 U.S. 178
    ,
    187 (1957). The inquiry must pertain to subjects “on which legislation
    could be had.” McGrain v. Daugherty, 
    273 U.S. at 177
    .
    In short, Congress’ oversight authority
    is as penetrating and far-reaching as the potential power to
    enact and appropriate under the Constitution.
    Broad as it is, the power is not, however, without limita­
    tions. Since Congress may only investigate into those areas
    in which it may potentially legislate or appropriate, it can­
    not inquire into matters which are within the exclusive
    province of one of the other branches of the Government.
    78
    Barenblatt v. United States, 
    360 U.S. 109
    , 111-12 (1959) (emphasis
    added).
    The execution of the law is one of the functions that the Constitution
    makes the exclusive province of the executive branch. Article II, Section
    1 provides that “the executive Power shall be vested in a President of the
    United States of America.” Article II, Section 3 imposes on the President
    the corresponding duty to “take Care that the Laws be faithfully execut­
    ed.”2 In particular, criminal prosecution is an exclusively executive
    branch responsibility. Heckler v. Chaney, 
    470 U.S. 821
    , 832 (1985);
    Buckley v. Valeo, 
    424 U.S. 1
    , 138 (1976); United States v. Nixon, 
    418 U.S. 683
    , 693 (1974). Accordingly, neither the judicial nor legislative branches
    may directly interfere with the prosecutorial discretion of the executive
    branch by directing it to prosecute particular individuals.3 Indeed, in
    addition to these general constitutional provisions on executive power,
    the Framers specifically demonstrated their intention that Congress not
    be involved in prosecutorial decisions or in questions regarding the crim­
    inal liability of specific individuals by including in the Constitution a pro­
    hibition against the enactment of bills of attainder. U.S. Const, art. I, § 9,
    cl. 3. See United States v. Lovett, 
    328 U.S. 303
    , 317-18 (1946); INS v.
    Chadha, 
    462 U.S. 919
    , 961-62 (1983) (Powell, J., concurring).
    On the other hand, Congress’ oversight authority does extend to the
    evaluation of the general functioning of the Inspector General Act and
    relevant criminal statutes, as well as inquiring into potential fraud, waste
    and abuse in the executive branch. Such evaluations may be seen to be
    necessary to determine whether the statutes should be amended or new
    legislation passed. See Watkins v. United States, 
    354 U.S. at 187
    . Given
    the general judicial reluctance to look behind congressional assertions of
    legislative purpose, an assertion that Congress needed the information
    for such evaluations would likely be deemed sufficient in most cases to
    meet the threshold requirement for congressional inquiry. This general
    legislative interest, however, does not provide a compelling justification
    1 One of the fundamental rationales for the separation of powers is that the power to enact laws and
    the power to execute laws must be separated in order to forestall tyranny As James Madison stated in
    Federalist No 47
    The reasons on which Montesquieu grounds his maxim [that the legislative, executive and
    judicial departments should be separate and distinct] are a further demonstration of his
    meaning “When the legislative and executive powers are united in the same person or body,”
    says he, “there can be no liberty, because apprehensions may anse lest the same monarch or
    senate should ettact tyrannical laws to execute them in a tyrannical m anner"
    The Federalist No 47, at 303 (James Madison) (Clinton Rossiter ed., 1961).
    3 See Heckler v Chaney, 470 U.S at 832 (“[T]he decision of a prosecutor in the Executive Branch not
    to indict... has long been regarded as the special province of the Executive Branch, inasmuch as it is the
    Executive who is charged by the Constitution to ‘take Care that the Laws be faithfully executed ’”),
    United States v Nixon, 418 U S. at 693 (“[T]he Executive Branch has exclusive authority and absolute
    discretion to decide whether to prosecute a case.”)
    79
    for looking into particular ongoing cases.4 Accordingly, we do not believe
    that as a general matter it should weigh heavily against the substantial
    executive branch interest in the confidentiality of law enforcement infor­
    mation. We discuss that interest next.
    B. Executive Privilege
    Assuming that Congress has a legitimate legislative purpose for its
    oversight inquiry, the executive branch’s interest in keeping the informa­
    tion confidential must be assessed. This subject is usually discussed in
    terms of “executive privilege,” and we will use that convention here.5
    Executive privilege is constitutionally based. To be sure, the Constitution
    nowhere expressly states that the President, or the executive branch gen­
    erally, enjoys a privilege against disclosing information requested by the
    courts, the public, or the legislative branch. The existence of such a priv­
    ilege, however, is a necessary corollary of the executive function vested
    in the President by Article II of the Constitution, has been asserted by
    numerous Presidents from the earliest days of our Nation, and has been
    explicitly recognized by the Supreme Court. United States v. Nixon, 
    418 U.S. at 705-06
    . There are three generally-recognized components of exec­
    utive privilege: state secrets, law enforcement, and deliberative process.
    Since congressional requests for information from IGs will generally
    implicate only the law enforcement component of executive privilege, we
    will limit our discussion to that component.
    It is well established and understood that the executive branch has
    generally limited congressional access to confidential law enforcement
    information in order to prevent legislative pressures from impermissibly
    influencing its prosecutorial decisions. As noted above, the executive
    branch’s duty to protect its prosecutorial discretion from congressional
    interference derives ultimately from Article II, which places the power to
    enforce the laws exclusively in the executive branch. If a congressional
    committee is fully apprised of all details of an investigation as the inves­
    tigation proceeds, there is some danger that congressional pressures will
    influence, or will be perceived to influence, the course of the investiga­
    tion. Accordingly, the policy and practice of the executive branch
    throughout our Nation’s history has been to decline, except in extraordi­
    nary circumstances, to provide committees of Congress with access to,
    4 For instance, Congress’ interest in evaluating the functioning of a criminal statute presumably can be
    satisfied by numerical or statistical analysis of closed cases that had been prosecuted under the statute,
    or (at most) by an analysis of the closed cases themselves.
    5 The question, however, is not strictly speaking just one of executive privilege While the considera­
    tions that support the concept and assertion of executive privilege apply to any congressional request for
    information, the privilege itself need not be claimed formally vis-a-vis Congress except in response to a
    lawful subpoena, in responding to a congressional request for information, the executive branch is not
    necessarily bound by the limits of executive privilege.
    80
    or copies of, open law enforcement files. No President, to our knowledge,
    has departed from this position affirming the confidentiality and privi­
    leged nature of open law enforcement files.6
    Attorney General Robert H. Jackson well articulated the basic position:
    It is the position of this Department, restated now with
    the approval of and at the direction of the President, that all
    investigative reports are confidential documents of the
    executive department of the Government, to aid in the duty
    laid upon the President by the Constitution to “take care
    that the Laws be faithfully executed,” and that congres­
    sional or public access to them would not be in the public
    interest.
    Disclosure of the reports could not do otherwise than
    seriously prejudice law enforcement. Counsel for a defen­
    dant or prospective defendant, could have no greater help
    than to know how much or how little information the
    Government has, and what witnesses or sources of infor­
    mation it can rely upon. This is exactly what these reports
    are intended to contain.
    40 Op. Att’y Gen. 45, 46 (1941).
    Other grounds for objecting to the disclosure of law enforcement files
    include the potential damage to proper law enforcement that would be
    caused by the revelation of sensitive techniques, methods, or strategy;
    concern over the safety of confidential informants and the chilling effect
    on other sources of information; sensitivity to the rights of innocent indi­
    viduals who may be identified in law enforcement files but who may not
    be guilty of any violation of law; and well-founded fears that the percep­
    tion of the integrity, impartiality, and fairness of the law enforcement
    process as a whole will be damaged if sensitive material is distributed
    beyond those persons necessarily involved in the investigation and pros­
    ecution process.7See generally Congressional Subpoenas of Department
    of Justice Investigative Files, 
    8 Op. O.L.C. 252
    , 262-66 (1984).
    6See generally Assertion o f Executive Privilege m Response to Congressional Demands fo r Law
    Enforcement Files,    6 Op O L.C. 31 (1982) (regarding request for open law enforcement investigative files
    of the Environmental Protection Agency); Memorandum for the Deputy Attorney General from Robert
    B. Shanks, Deputy Assistant Attorney General, Office of Legal Counsel, Re. Refusals by Executive
    Branch to Provide Documents from Open Crim inal Investigative Files to Congress (Oct. 30, 1984).
    7 In addition, potential targets of enforcement actions are entitled to protection from premature dis­
    closure of investigative information It has been held that there is “no difference between prejudicial pub­
    licity instigated by the United States through its executive arm and prejudicial publicity instigated by the
    United States through its legislative arm.” Delaney v United States, 199 F2d 107, 114 (1st Cir. 1952).
    Pretrial publicity originating in Congress, therefore, can be attributed to the government as a whole and
    can require postponement or other modification of the prosecution on due process grounds Id
    81
    C. Accommodation with Congress
    The executive branch should make every effort to accommodate
    requests that are within Congress’ legitimate oversight authority, while
    remaining faithful to its duty to protect confidential information.8 See
    generally United States v. AT&T, 
    567 F.2d 121
    , 127-30 (D.C. Cir. 1977);
    Assertion of Executive Privilege in Response to a Congressional
    Subpoena, 
    5 Op. O.L.C. 27
    , 31 (1981) (“The accommodation required is
    not simply an exchange of concessions or a test of political strength. It is
    an obligation of each branch to make a principled effort to acknowledge,
    and if possible to meet, the legitimate needs of the other branch.”).
    The nature of the accommodation required in responding to a con­
    gressional request for information clearly depends on the balance of
    interests between the Executive and Congress. For its part, Congress
    must be able to articulate its need for the particular materials — to
    “point[] to ... specific legislative decisions that cannot responsibly be
    made without access to materials uniquely contained” in the presump­
    tively privileged documents (or testimony) it has requested, and to show
    that the material “is demonstrably critical to the responsible fulfillment of
    the Committee’s functions.” Senate Select Comm, on Presidential
    Campaign Activities v. Nixon, 
    498 F.2d 725
    , 731, 733 (D.C. Cir. 1974).
    The more generalized the executive branch interest in withholding the
    disputed information, the more likely it is that this interest will yield to a
    specific, articulated need related to the effective performance by
    Congress of its legislative functions. Conversely, the more specific the
    need for confidentiality, and the less specific the articulated need of
    Congress for the information, the more likely it is that the Executive’s
    need for confidentiality will prevail. See Nixon v. Administrator of
    General Services, 
    433 U.S. 425
    , 446-55 (1977) (discussion of balance of
    8 President Reagan’s November 4, 1982 Memorandum for the Heads of Executive Departments and
    Agencies on “Procedures Governing Responses to Congressional Requests for Information” states:
    The policy of this Administration is to comply with Congressional requests for information
    to the fullest extent consistent with the constitutional and statutory obligations of the
    Executive Branch . .. [Ejxecutive privilege will be asserted only in the most compelling cir­
    cumstances, and only after careful review demonstrates that assertion of the privilege is nec­
    essary Historically, good faith negotiations between Congress and the Executive Branch
    have minimized the need for invoking executive privilege, and this tradition of accommoda­
    tion should continue as the primary means of resolving conflicts between the Branches
    Only rarely do congressional requests for information result in a subpoena of an executive branch offi­
    cial or in other congressional action. In m ost cases the informal process of negotiation and accommo­
    dation recognized by the courts, and mandated for the executive branch by President Reagan’s 1982
    memorandum, is sufficient to resolve any dispute. On occasion, however, the process breaks down, and
    a subpoena is issued by a congressional committee or subcommittee. At that point, it would be neces­
    sary to consider asking the President to assert executive privilege. Under President Reagan’s memoran­
    dum, executive privilege cannot be asserted vis-a-vis Congress without specific authorization by the
    President, based on recommendations made to him by the concerned department head, the Attorney
    General, and the Counsel to the President. We have no reason to believe that President Bush envisions a
    different procedure.
    82
    interests); United States v. Nixon, 
    418 U.S. at 707-13
     (same); United
    States v. AT&T, 
    567 F.2d at 130-33
     (same).
    In light of the limited and general congressional interest in ongoing
    criminal investigations and the specific and compelling executive branch
    interest in protecting the confidentiality of such investigations, the exec­
    utive branch has generally declined to make any accommodation for con­
    gressional committees with respect to open cases: that is, it has consis­
    tently refused to provide confidential information. However, on occasion
    after an investigation has been closed, and after weighing the interests
    present in the particular case, the executive branch has briefed Congress
    on prosecutorial decisions and has disclosed some details of the under­
    lying investigation.9
    In conclusion, although in the absence of a concrete factual setting we
    cannot analyze the case for withholding any particular document or infor­
    mation in response to a congressional oversight request, we can advise
    that as a general matter Congress has a limited oversight interest in the
    conduct of an ongoing criminal investigation and the executive branch
    has a strong interest in preserving the confidentiality of such investiga­
    tions. Accordingly, in light of established executive branch policy and
    practice, and absent extraordinary circumstances, an IG should not pro­
    vide Congress with confidential information concerning an open criminal
    investigation.
    II. Congressional Requests Based on the Inspector General Act
    The second question raised by your opinion request is whether the
    reporting provisions of the Inspector General Act require that IGs provide
    Congress with confidential information on open criminal investigations
    that is not normally shared with Congress under established executive
    branch policy and practice with respect to oversight requests. We believe
    that both the text and legislative history of these provisions demonstrate
    that they do not impose such a requirement.
    9 Once ail investigation has been closed without further prosecution, some of the considerations pre-
    viously discussed lose their force Access by Congress to details of closed investigations does not pose
    as substantial a risk that Congress will be a partner in the investigation and prosecution or will otherwise
    seek to influence the outcome of the prosecution, likewise, if no prosecution will result, concerns about
    the effects of undue pretnal publicity on a jury would disappear. Still, such records are not automatical­
    ly disclosed to Congress. Obviously, much of the information in a closed cnminaJ enforcement file —
    such as unpublished details of allegations against particular individuals and details that would reveal
    confidential sources and investigative techniques and methods — would continue to need protection
    In addition, the executive branch has a long-term institutional interest in maintaining the confidential­
    ity of the prosecutorial decisionmaking process The Supreme Court has recognized that “human expe­
    rience teaches that those who expect public dissemination of their remarks may well temper candor with
    a concern for appearances and for their own interests to the detriment of the decisionmaking process ”
    United States v N ixon , 418 U S at 705. It is therefore important to weigh the potential “chilling effect”
    of a disclosure of details of the prosecutorial deliberative process in a closed case against the immediate
    needs of Congress
    83
    The Act establishes a number of congressional reporting requirements
    with respect to the activities of the IGs. Most generally, section 4(a)(5)
    requires each IG
    to keep the head of [the agency within which his office is
    established] and the Congress fully and currently informed,
    by means of the reports required by section 5 and other­
    wise, concerning fraud and other serious problems, abuses,
    and deficiencies relating to the administration of programs
    and operations administered or financed by such [agency],
    to recommend corrective action concerning such prob­
    lems, abuses, and deficiencies, and to report on the
    progress made in implementing such corrective action.
    Section 5(a) requires each IG to prepare semi-annual reports summariz­
    ing the activities of his office, and section 5(b) requires that the head of
    the IG’s agency submit these reports to the appropriate committees or
    subcommittees of Congress within 30 days of receiving them. Section
    5(d) requires each IG to
    report immediately to the head of the [agency] whenever
    the [IG] becomes aware of particularly serious or flagrant
    problems, abuses, or deficiencies relating to the adminis­
    tration of programs and operations of such [agency]. The
    head of the [agency] shall transmit any such report to the
    appropriate committees or subcommittees of Congress
    within seven calendar days, together with a report by the
    head of the agency containing any comments such head
    deems appropriate.
    Finally, section 5(e) provides in subsection (1) that none of the reporting
    requirements “shall be construed to authorize the public disclosure” of
    certain information, while also providing in subsection (3) that neither
    the reporting requirements nor any other provision of the Act “shall be
    construed to authorize or permit the withholding of information from the
    Congress, or from any committee or subcommittee thereof.”
    In our judgment, nothing in the text of these provisions provides that
    confidential law enforcement materials pertaining to ongoing cases must
    be transmitted to Congress. To the contrary, the statutory scheme set out
    in section 5 of the Act merely envisions that the periodic reports from
    each IG to Congress will be a general “description” and “summary” of the
    work of the IG. This view of section 5 is supported by the Act’s legislative
    history. In proposing the congressional reporting requirements that were
    ultimately enacted into law,10 the Senate committee made it clear that it
    did not contemplate that reports from the IGs would be so specific that
    84
    confidential investigative information would fall within the scope of the
    report and, in any event, it was not intended that such information would
    be required. For example, with respect to section 5(a)(4)’s requirement
    that semi-annual reports contain “a summary of matters referred to pros­
    ecutive authorities and the prosecutions and convictions which have
    resulted,” the committee indicated:
    By using the word “summary” in subsection (a)(4), the
    committee intends that Congress would be given an
    overview of those matters which have been referred to
    prosecutive authorities. It would be sufficient, for instance,
    for an [IG] at HUD to include in his report the fact that he
    had referred 230 cases of fraud in FHA programs to the
    Justice Department for further investigation and prosecu­
    tion. It would be highly improper and often a violation of
    due process for an IG’s report to list the names of those
    under investigation or to describe them with sufficient pre­
    cision to enable the identities of the targets to be easily
    ascertained. However, once prosecutions and convictions
    have resulted, the IG could certainly list those cases, if he
    deems such a listing appropriate.
    S. Rep. No. 1071 at 30.
    The committee noted that section 5(b)’s requirement that semi-annual
    reports be submitted to Congress “contemplates that the IG’s reports will
    ordinarily be transmitted to Congress by the agency head without alter­
    ation or deletion." Id. at 31 (emphasis added). The committee went on to
    stress, however, that
    nothing in this section authorizes or permits an [IG] to dis­
    regard the obligations of law which fall upon all citizens and
    with special force upon Government officials. The Justice
    Department has expressed concern that since an [IG] is to
    report on matters involving possible violations of criminal
    law, his report might contain information relating to the
    identity of informants, the privacy interest of people under
    investigations, or other matters which would impede law
    10 The Act was originally considered by the House of Representatives as H.R. 8588, which contained
    similar reporting requires to those of the Senate bill Compare House version, sections 3-4, 124 Cong
    Rec. 10,399 (1978), with Senate version, sections 4-5,124 Cong. Rec 32,029-30 (1978). The legislative his­
    tory regarding the House provisions is much less extensive than that for the Senate provisions. See gen­
    erally H.R. Rep. No. 584, 95th Cong., 1st Sess 13-14 (1977) H R 8588 passed the House, but failed in the
    Senate, which considered instead a substitute bill reported from the Senate Committee on Governmental
    Affairs See 124 Cong Rec. 30,949 (1978), S. Rep. No. 1071,95th Cong., 2d Sess (1978) The House accept­
    ed the substitute Senate bill and it was enacted into law
    85
    enforcement investigations. /Is noted above, the committee
    does not envision that a report by the [IG] would contain
    this degree of specificity. In any event, however, the intent
    of the legislation is that the [IG] in preparing his reports,
    must observe the requirements of law which exist today
    under common Law, statutes, and the Constitution, with
    respect to law enforcement investigations....
    The committee recognizes, however, that in rare circum­
    stances the [IG], through inadvertence or design, may
    include in his report materials of this sort which should not
    be disclosed even to the Congress. The inclusion of such
    materials in an [IG’s] report may put a conscientious agency
    head in a serious bind. The obligation of an agency head is
    to help the President “faithfully execute the laws.” Faithful
    execution of this legislation entails the timely transmittal,
    without alteration or deletion, of an [IG’s] report to
    Congress. However, a conflict of responsibilities may
    arise when the agency head concludes that the [IG’s]
    report contains material, disclosure of which is improper
    under the law. In this kind of rare case, section 5(b) is not
    intended to prohibit the agency head from deleting the
    materials in question.n
    Id. at 31-32 (emphasis added).12
    The committee also made it clear that the same principles apply with
    equal force to the requirement of section 5(d) that the IG reports to
    agency heads on “particularly serious or flagrant problems” also be sub­
    mitted to Congress. In stating with respect to this section that “as in sub­
    section (b), the agency head has no general authority or right to delete or
    alter certain provisions of the report” id. at 33, the committee clearly
    11 “In the rare cases in which alterations or deletions have been made, the committee envisions that an
    agency head’s comments on an [IG’s] report would indicate to the Congress that alterations or deletions
    had been made, give a descnption of the materials altered or deleted, and the reasons therefore ” Id at
    32.
    12 In addition to thus stating its intention with respect to the confidentiality of law enforcement infor­
    mation, the committee also expressed its understanding that section 5(b) cannot override executive priv­
    ilege with respect to deliberative process information
    [T]he committee is aware that the Supreme Court has, in certain contexts, recognized the
    President’s constitutional privilege for confidential communications or for information relat­
    ed to the national security, diplomatic affairs, and military secrets Insofar as this privilege
    is constitutionally based, the committee recognizes that subsection 5 (b) cannot override
    it In view o f the uncertain nature o f the law m this area, the committee intends that sub­
    section 5 (b ) iv ill nei the) accept n o r reject any particular view o f Presidential privilege but
    only preserve f o r the President the opportunity to assert privilege where he deems it nec­
    essary.  The committee intends that these questions should be left for resolution on a case-
    by-case basis as they anse in the course of implementing this legislation
    Id. at 32 (emphasis added) (citations omitted)
    86
    implied that the agency head retained the ability — as in the “rare case”
    identified with respect to subsection (b) — to delete “materials ... which
    should not be disclosed even to the Congress.” Id. at 32.
    Conclusion
    Long-established executive branch policy and practice, based on con­
    sideration of both Congress’ oversight authority and principles of execu­
    tive privilege, require that in the absence of extraordinary circumstances
    an IG must decline to provide confidential information about an open
    criminal investigation in response to a request pursuant to Congress’
    oversight authority. With respect to congressional requests„based on the
    reporting requirements of the Inspector General Act, we similarly con­
    clude that the reporting provisions of the Inspector General Act do not
    require IGs to disseminate confidential information pertaining to open
    criminal investigations.
    D ouglas W. Kmiec
    Assistant Attorney General
    Office of Legal Counsel
    87