UNITED STATES of America, and Robert H. Cluberton, Internal Revenue Agent,


                Internal Revenue Service, Petitioners-Appellees,


                                       v.


     CHURCH OF SCIENTOLOGY OF CALIFORNIA and Henning Heldt, Vice President,


                             Respondents-Appellants.


                                  No. 74-1487.


                         United States Court of Appeals,


                                 Ninth Circuit.


                                 June 26, 1975.


  Internal Revenue Service filed petition seeking enforcement of summons


 requiring church officer to testify and to produce for examination certain


 church records bearing on church's federal income tax liability.  The United


 States District Court for the Central District of California, Harry Pregerson,


 J., entered order enforcing summons and denied church's request for


 preenforcement discovery, and church appealed.  The Court of Appeals, Duniway,


 Circuit Judge, held that Service's litigative strategy in prior proceedings


 involving the church did not sufficiently evince bad faith so as to require


 denial of enforcement, that mere conclusory allegations of bad faith harassment


 and bad purpose were not sufficient to warrant preenforcement discovery but


 that church's allegations of bad faith harassment, though thin, raised


 sufficient doubt about Service's purposes to require the district court to hold


 a limited evidentiary hearing to determine whether further inquiry into the


 Service's purposes by way of discovery was warranted.


  Reversed and remanded.





 [1] FEDERAL COURTS


 Court of Appeals had jurisdiction of appeal from district court order enforcing


 summons issued by internal revenue service agent and denying taxpayer's request


 for pre-enforcement discovery.  26 U.S.C.A. (I.R.C.1954) s 7602;  28


 U.S.C.A. s 1291.





 [2] INTERNAL REVENUE


 An internal revenue summons is administratively issued but its enforcement is


 only by federal court authority in an adversary proceeding affording the


 opportunity for challenge and complete protection of the witness.  26


 U.S.C.A. (I.R.C.1954) s 7602.





 [3] INTERNAL REVENUE


 Federal Rules of Civil Procedure apply to a proceeding to enforce an internal


 revenue service summons.  26 U.S.C.A. (I.R.C.1954) s 7602;  Fed.Rules


 Civ.Proc. rule 81(a)(3), 28 U.S.C.A.





 [4] FEDERAL CIVIL PROCEDURE


 Federal Rules of Civil Procedure, as applied in a summons proceeding, are not


 inflexible;  the district court may limit their application in a proceedings to


 enforce a summons, which is intended to be a summary proceeding, so long as the


 rights of the parties summoned are protected and adversary hearing, if


 requested, is made available.  Fed.Rules Civ.Proc. rule 81(a)(3), 28


 U.S.C.A.





 [5] INTERNAL REVENUE


 Internal Revenue Service need not meet any standard of probable cause to obtain


 enforcement of a summons;  it must show only (1) that the investigation will be


 conducted pursuant to a legitimate purpose, (2) that the inquiry may be


 relevant to the purpose, (3) that the information sought is not already within


 the Service's possession and (4) that the administrative steps required by the


 internal revenue code have been followed.  26 U.S.C.A. (I.R.C.1954)


 s 7602.





 [5] INTERNAL REVENUE


 Internal Revenue Service need not meet any standard of probable cause to obtain


 enforcement of a summons;  it must show only (1) that the investigation will be


 conducted pursuant to a legitimate purpose, (2) that the inquiry may be


 relevant to the purpose, (3) that the information sought is not already within


 the Service's possession and (4) that the administrative steps required by the


 internal revenue code have been followed.  26 U.S.C.A. (I.R.C.1954)


 s 7602.





 [6] INTERNAL REVENUE


 Fact that proposed assessments for earlier years were pending at time of


 internal revenue service summons for church records bearing on subsequent tax


 years did not in itself indicate bad faith sufficient to deny enforcement of


 summons;  under code, determination of tax exempt status for a given year


 depends upon the financial operations of the church for that year;  in any


 event, since gross receipts for subsequent tax years were markedly


 higher than those for prior years it was not unreasonable for the service to


 investigate the different periods separately but simultaneously.  26


 U.S.C.A. (I.R.C.1954) ss 501(c)(3), 7602.





 [7] INTERNAL REVENUE


 Fact that in one instance the Internal Revenue Service tendered return of taxes


 paid by church and in another case the government admitted error did not


 sufficiently establish a bad faith "harass and moot" strategy on part of the


 Service so as to warrant denial of enforcement of summons requiring production


 of certain church records bearing on its federal income tax liability;


 likewise, fact that Service may have capitulated in certain cases because small


 amounts were in issue or because it had insufficient evidence to sustain its


 case was no reason to bar it from gathering evidence it deemed necessary in


 instant case.  26 U.S.C.A. (I.R.C.1954) ss 501(c)(3), 7602.





 [8] INTERNAL REVENUE


 Mere unsupported allegations of harassment and improper purpose are not alone


 sufficient to require the court to deny enforcement of internal revenue service


 summons.  26 U.S.C.A. (I.R.C.1954) s 7602.





 [9] FEDERAL CIVIL PROCEDURE


 In proceedings seeking enforcement of administrative summons, such as an


 internal revenue service summons, the district court has considerable


 discretion to restrict or deny discovery.  26 U.S.C.A. (I.R.C.1954)


 s 7602;  Fed.Rules Civ.Proc. rule 81(a)(3), 28 U.S.C.A.





 [9] INTERNAL REVENUE


 In proceedings seeking enforcement of administrative summons, such as an


 internal revenue service summons, the district court has considerable


 discretion to restrict or deny discovery.  26 U.S.C.A. (I.R.C.1954)


 s 7602;  Fed.Rules Civ.Proc. rule 81(a)(3), 28 U.S.C.A.





 [10] FEDERAL CIVIL PROCEDURE


 In contrast to the procedure in ordinary civil cases, discovery in a summary


 summons enforcement proceeding is the exception rather than the rule.


 Fed.Rules Civ.Proc. rule 81(a)(3), 28 U.S.C.A.





 [11] FEDERAL CIVIL PROCEDURE


 Party resisting enforcement of an administrative summons must do more than


 allege an improper purpose to entitle him to pre-enforcement discovery.


 Fed.Rules Civ.Proc. rule 81(a)(3), 28 U.S.C.A.





 [12] INTERNAL REVENUE


 Allegations that Internal Revenue Service issued administrative summons for


 improper purpose or to harass taxpayers were not alone sufficient to warrant


 preenforcement discovery;  to allow taxpayer to depose examining agent and its


 superiors and to inspect internal revenue service records and memoranda on


 basis of such conclusory allegations would place undue burdens on the service


 and impede what is supposed to be a summary enforcement procedure.  26


 U.S.C.A. (I.R.C.1954) s 7602;  Fed.Rules Civ.Proc. rule 81(a)(3), 28


 U.S.C.A.





 [13] INTERNAL REVENUE


 A taxpayer resisting enforcement of internal revenue service summons bears


 burden of proving bad faith harassment or other abuse.  26 U.S.C.A.


 (I.R.C.1954) s 7602.





 [14] INTERNAL REVENUE


 A taxpayer resisting enforcement of internal revenue service summons on ground


 of bad faith harassment or other abuse is entitled to some opportunity to


 substantiate his allegations;  holding of an evidentiary hearing would


 accommodate the needs of efficient tax administration and at the same time


 provide a reasonable opportunity for the summonee to carry the burden of


 showing an abuse of process.  26 U.S.C.A. (I.R.C.1954) s 7602;


 Fed.Rules Civ.Proc. rule 81(a)(3), 28 U.S.C.A.





 [15] INTERNAL REVENUE


 Purpose of an evidentiary hearing to determine whether to grant discovery in


 proceeding seeking enforcement of internal revenue service summons is to sift


 out those rare cases where bald allegations of harassment or improper purpose


 can be substantiated and thereby avoid dilatory and burdensome discovery


 procedures.  26 U.S.C.A. (I.R.C.1954) s 7602;  Fed.Rules Civ.Proc.


 rule 81(a)(3), 28 U.S.C.A.





 [16] INTERNAL REVENUE


 Since church's allegations of bad faith harassment by Internal Revenue Service,


 though thin, raised doubt as to Service's purposes, district court should have


 held a limited evidentiary hearing to determine whether further inquiry into


 the Service's purposes by way of discovery was warranted;  although such a


 hearing would entail cross-examination of the summoning agent, permissible


 scope of the hearing was for the district court's discretion.  26 U.S.C.A.


 (I.R.C.1954) s 7602;  Fed.Rules Civ.Proc. rule 81(a)(3), 28 U.S.C.A.





 [17] INTERNAL REVENUE


 Although summonee attempted discovery only by way of taking deposition and


 request for internal revenue service documents, summonee did not waive its


 right to evidentiary hearing to determine whether further inquiry into


 Service's purposes by way of discovery was warranted where summonee twice


 called district court's attention to case law providing for such a hearing in


 an enforcement proceeding.  26 U.S.C.A. (I.R.C.1954) s 7602.


  *820 James Q. Fisher (argued), Encino, Cal., for respondents-appellants.


  Alfred S. Lombardi, Atty. (argued), Tax Div., U. S. Dept. of Justice,


 Washington, D. C., for petitioners-appellees.


                                     OPINION





  Before DUNIWAY and ELY, Circuit Judges, and JAMESON,[FN*] District Judge.





      FN* The Honorable William J. Jameson, Senior United States District Judge


     for the District of Montana, sitting by designation.





  DUNIWAY, Circuit Judge:


  The Church of Scientology of California appeals from the district court's


 order enforcing a summons issued by an Internal Revenue Service agent under


 s 7602 of the Internal Revenue Code of 1954, 26 U.S.C. s 7602, and


 denying the Church's request for pre-enforcement discovery.  We reverse and


 remand for further proceedings.


  I. Facts.


  On February 8, 1973, agent Cluberton of the Service's Audit Division issued a


 summons to Henning Heldt, then vice president of the Church of Scientology of


 California, requiring Heldt to appear on February 20, 1973, to testify and to


 produce for examination certain records of the Church bearing on its federal


 income tax liability for 1968 and 1969.  Heldt appeared at the appointed time,


 apparently willing to testify, but without the required records.  Heldt said


 that he was no longer an officer of the Church and that he had neither control


 nor possession of the records because he had resigned as director and vice


 president of the Church four days earlier, on February 16, 1973.  The agent


 noted Heldt's appearance but did not examine him.  In the course of two years


 of negotiations preceding the issuance of the summons, Heldt had consistently


 held himself out to the agent as the representative of the Church in charge of


 its books and records, and never stated that he was contemplating resigning.


  On September 5, 1973, the Service petitioned the district court to enforce the


 summons against Heldt and the Church under 26 U.S.C. ss 7402(b) and


 7604(a), both of which somewhat redundantly gave the district courts


 jurisdiction "by appropriate process" to compel compliance with such


 summonses.  The district court issued an order requiring Heldt and the Church


 to show cause why they should not be required to comply with the summons.


  Heldt and the Church then filed a notice of taking depositions of agent


 Cluberton and two other Service officials and a demand for the production of


 Service files relating to the Church.  The Service moved to quash this


 discovery.  Then Heldt and the Church responded to the order to show cause by


 alleging, inter alia, that the Service had issued the summons for the bad faith


 purpose of harassing the Church.  More specifically, the Church asserted that


 the instant *821 summons was part of a concerted nationwide Service strategy


 to harass various churches of Scientology, which are in the Church's words


 "doctrinal cousins" but separate entities.  According to the Church, the


 Service has followed a pattern of initiating investigations and administrative


 and judicial proceedings, but nonetheless resisting definitive determination of


 the tax exempt status of those churches all, the Church alleges, for the


 purpose of applying pressure to the churches to settle the issue of their


 claimed tax exemptions and of eliminating Scientology organizations.  The


 Church sought to take the depositions of Service officials to attempt to


 uncover evidence to support these allegations.


  The district judge held a hearing on the order to show cause and on the


 Service's motion to quash discovery, listening to oral argument by counsel, but


 without the presentation of testimony or other evidence other than affidavits


 already on file.  Concluding that the "allegation of harassment is not


 supported by the record," the judge entered orders (1) quashing the notice of


 taking of depositions and (2) enforcing the summons against the Church.  At the


 request of the Church, the judge stayed enforcement of the summons pending


 appeal, on the condition that the Church deposit with the court all of the


 books and records sought by the summons.  The Church did so, filling 23 trunks


 with records, and brought this appeal.


  [1] We have jurisdiction under 28 U.S.C. s 1291.  Reisman v. Caplin,


 1964,  375 U.S. 440, 449, 84 S.Ct. 508, 11 L.Ed.2d 459; D. I. Operating Co.


 v. United States, 9 Cir., 1963, 321 F.2d 586.


  II.  Summons Enforcement Proceedings in General.


  We begin with a review of a few basic, settled principles.


  [2][3][4] An internal revenue summons is "administratively issued but its


 enforcement is only by federal court authority in 'an adversary proceeding'


 affording the opportunity for challenge and 'complete protection to the


 witness.' " Donaldson v. United States, 1971, 400 U.S. 517, 525, 91 S.Ct.


 534, 539, 27 L.Ed.2d 580; Reisman v. Caplin, 1964, 375 U.S. 440, 446, 84


 S.Ct. 508, 11 L.Ed.2d 459.  The Federal Rules of Civil Procedure apply to a


 summons proceeding.  Fed.R.Civ.P. 81(a)(3); United States v. Powell,


 1964, 379 U.S. 48, 58, n. 18, 85 S.Ct. 248, 13 L.Ed.2d 112; Martin v.


 Chandis Securities Co., 9 Cir., 1942, 128 F.2d 731, 734.  But the Civil Rules


 are not inflexible; a district court may limit their application in a


 proceeding to enforce a summons which is intended to be a summary proceeding,


 so long as the rights of the party summoned are protected and an adversary


 hearing, if requested, is made available.  Donaldson, supra, 400 U.S. at


 528-29, 91 S.Ct. 534.


  [5] The Internal Revenue Service need not meet any standard of probable


 cause to obtain enforcement of its summons; it must show only (1) that the


 investigation will be conducted pursuant to a legitimate purpose; (2) that the


 inquiry may be relevant to the purpose; (3) that the information sought is not


 already within the Service's possession; and (4) that the administrative steps


 required by the Internal Revenue Code have been followed.  United States v.


 Powell, supra, 379 U.S. at 57-58, 85 S.Ct. 248.


  However, as the Court explained in Powell, 379 U.S. at 58, 85 S.Ct. at 255


 (footnotes omitted):


   This does not make meaningless the adversary hearing to which the taxpayer is


 entitled before enforcement is ordered.  At the hearing he "may challenge the


 summons on any appropriate ground," Reisman v. Caplin, 375 U.S. 440, at 449,


 84 S.Ct. (508), at 513 (11 L.Ed.2d 459).  Nor does our reading of the


 statutes mean that under no circumstances may the court inquire into the


 underlying reasons for the examination.  It is the court's process which is


 invoked to enforce the administrative summons and a court may not permit its


 process to be abused.  Such an abuse would take place if the summons had been


 issued for an improper *822 purpose, such as to harass the taxpayer or to


 put pressure on him to settle a collateral dispute, or for any other purpose


 reflecting on the good faith of the particular investigation.  The burden of


 showing an abuse of the court's process is on the taxpayer, and it is not met


 by a mere showing, as was made in this case, that the statute of limitations


 for ordinary deficiencies has run or that the records in question have already


 been once examined.


  These principles were reaffirmed by the Court in Donaldson v. United


 States, 1971, 400 U.S. 517, 526-27, 91 S.Ct. 534, 27 L.Ed.2d 580, and more


 recently in United States v. Bisceglia, 1975, 420 U.S. 141, 146, 95 S.Ct.


 915, 43 L.Ed.2d 88.


  III.  The Alleged Abuse of Process.


  The four criteria for enforcement set out in Powell were satisfied in this


 case.  The principal question on appeal is whether the district court erred in


 enforcing the summons without allowing discovery and without taking evidence on


 the alleged abuse of the court's process.  We conclude that the court should


 have held a limited pre-enforcement evidentiary hearing.


  A.  The Allegation of Bad Faith IRS Harassment.


  We first consider the Church's allegations and the support for them that


 appears in the record.


  Attached to the Church's memorandum in opposition to enforcement of the


 summons is a "Summary of Administrative and Judicial Proceedings involving the


 Church of Scientology and its Parishioners," which the Church says reveals a


 pattern of bad faith IRS harassment.  This summary lists eleven proceedings


 involving various churches of Scientology.  With respect to the California


 Church, the summary states that the Service retroactively revoked the tax


 exempt status of the California Church in 1968 and that questions of the


 Church's tax liability for 1964 through 1967 were pending at the appellate


 conference level when the summons was issued.  Also appended to the memorandum


 are the affidavit of Heldt and certain correspondence between the Church and


 Service officials in which the Church asked the Service, and the Service


 refused, to defer the examination for 1968 and 1969 while examinations for


 earlier years were pending.


  [6][7] The pendency of proposed assessments for the earlier years, however,


 does not in itself indicate bad faith on the part of the Service.  Under s


 501(c)(3) of the Code, determination of tax exempt status for a given year


 depends upon the financial operation of the Church for that year.  See


 Church of Scientology of Hawaii v. United States, 9 Cir., 1973, 485 F.2d


 313, 319 (Koelsch, J., dissenting).  Moreover, the gross receipts of the


 California Church for 1968 and 1969 were markedly higher than those for 1964


 through 1967.  It was not unreasonable for the Service to investigate the


 different periods separately but simultaneously.


  The Church also cites our Church of Scientology of Hawaii case, supra, and


 another case now pending on appeal to this court, Handeland v. Commissioner,


 519 F.2d 327, as evidence of an alleged bad faith "harass and moot" strategy in


 which the Service repeatedly imposes assessments on churches of Scientology but


 stops short of litigating the merits of the churches' tax exempt status by


 refunding the taxes paid or conceding non-liability.  In the Church of


 Hawaii case, we held that the taxpayer's suit for a refund was not mooted by


 the Service's tender of the taxes paid.  Handeland involves an action in the


 Tax Court by ministers of the Church of Scientology of Minnesota in which the


 government admitted error and the Tax Court entered a judgment without opinion


 for the ministers.  The propriety of this mooting tactic is not now before us.


 If this mooting tactic is improper, the Church will have its remedy, as it did


 in the Church of Hawaii case.


  For present purposes, we conclude only that the Service's litigative strategy


 in *823 those cases does not sufficiently evince bad faith to require us or


 the district court to deny enforcement of the summons.  It may be that the


 Service has capitulated in certain cases because small amounts were in issue or


 because it has insufficient evidence to sustain its case.  We see no reason to


 bar it from gathering the evidence it deems necessary in this case.  We note in


 passing that the Service has litigated to finality and won a case involving the


 tax exempt status of a Scientology church in Founding Church of Scientology


 v. United States, 1969, 412 F.2d 1197, 188 Ct.Cl. 490, cert. denied, 397


 U.S. 1009, 90 S.Ct. 1237, 25 L.Ed.2d 422, where the court held that the Church


 failed to prove that no part of the corporation's net earnings inured to the


 benefit of private individuals.  See 26 U.S.C. s 501(c)(3).


  As evidence of purportedly improper Service motives, the Church also relies on


 a Service "Manual Supplement" dated September 2, 1970.  Its stated purpose, as


 we observed in Church of Scientology of Hawaii, supra, 485 F.2d at 317, is


 to identify "Church of Scientology type religious organizations" and to provide


 guidelines for examining returns and processing applications.  However, we see


 no reflection of a nefarious purpose on the face of this document.


  The manual supplement is based on the opinion of the Court of Claims in


 Founding Church of Scientology v. United States, supra.  The court discussed


 both the tenets and the structure of Scientology organizations.  After pointing


 out that the Founding Church tithed 10 percent of its gross income to founder


 L. Ron Hubbard, the court observed, 412 F.2d at 1199:


   Other Scientology congregations, franchises, and organizations also paid


 Hubbard a portion of their gross income, usually 10 percent.


  The Court of Claims explained, 412 F.2d at 1201:


   For purposes of deciding this case, we do not consider the income accruing to


 Hubbard from the affiliated congregations and organizations as coming from


 plaintiff.  However, under the circumstances here, the fact that Hubbard had


 income from such closely related sources indicates that Hubbard's compensation


 from plaintiff was not for full-time service.  During the years in issue these


 other percentages, fees, and commissions, so far as the record shows, were


 apparently received or receivable by Hubbard for his personal use.  Such an


 arrangement suggests a franchise network for private profit and, in turn, casts


 doubt upon the propriety of the payments by plaintiff to Hubbard and the


 members of his family.  The fact that Hubbard was the recipient of income from


 plaintiff in the form of royalties and commissions likewise occasions an


 inference of personal gain.


  Given the evidence in that case and the conclusions of the Court of Claims, it


 was entirely reasonable for the Service, using the characteristics sketched by


 that court, to identify Scientology organizations and to establish a uniform


 policy and procedure for examining them.  In fact, we might suspect an improper


 external influence if, under the circumstances, the Service did not give such


 organizations careful scrutiny.


  [8] In short, we agree with the district court that the allegations of


 harassment and improper purposes were not supported by the record and standing


 alone did not require the court to deny enforcement.  However, our inquiry does


 not end here, for it may be that the Church's allegations have more substance


 than meets the eye.  See, e. g., Center on Corporate Responsibility, Inc. v.


 Schultz, D.D.C., 1973, 368 F.Supp. 863 (evidence of White House use of IRS


 administrative actions against certain "activist" organizations whose views


 were offensive to the White House).


  B.  Denial of Discovery and Evidentiary Hearing.


  The Church contends that it was entitled to discovery under Fed.R.Civ.P. 30


 and 34 or, failing that, an evidentiary hearing to inquire into the motives


 of the Service in issuing the summons.


  *824 [9][10][11][12] Under Fed.R.Civ.P. 81(a)(3) the district court


 has considerable discretion to restrict or deny discovery.  See United


 States v. Bell, 9 Cir., 1971, 448 F.2d 40, 42; United States v. Ruggeiro, 9


 Cir., 1970, 425 F.2d 1069, 1071; United States v. Ahmanson, 9 Cir., 1969,


 415 F.2d 785, 787.  In contrast to the procedure in ordinary civil cases,


 discovery in a summary summons enforcement proceeding is the exception rather


 than the rule.  The party resisting enforcement should be required to do more


 than allege an improper purpose before discovery is granted.  United States


 v. National State Bank, 7 Cir., 1972, 454 F.2d 1249, 1252; United States v.


 Salter, 1 Cir., 1970, 432 F.2d 697, 700.  Conclusory allegations carefully


 tailored to the language of Powell, supra, that the Service has issued a


 summons for an improper purpose such as to harass the taxpayer or to put


 pressure on him to settle a collateral dispute, are easily made.  See


 Garrett v. United States, 9 Cir., 1975, 511 F.2d 1037.


  Allowing the Church to take depositions of the examining IRS agent and his


 superiors and to inspect internal IRS records and memoranda on the basis of


 such conclusory allegations would place undue burdens on the Service and impede


 what is supposed to be a summary enforcement procedure.  Accordingly, we reject


 the Church's argument that it was entitled to pre-enforcement discovery.


  [13][14][15][16] Nonetheless, because, as we have seen, the Church or any


 other summonee bears the burden of proving bad faith harassment or other abuse,


 we think that the summonee must be afforded at least some opportunity to


 substantiate its allegations.


  The Church argues that, failing to grant its request for discovery, the


 district court should at least have held an evidentiary hearing to inquire


 further into the motives of the Service in issuing the summons.  As the Church


 points out, that was the approach adopted by the First Circuit in United


 States v. Salter, 1 Cir., 1970, 432 F.2d 697, where the summonee also alleged


 an improper Service purpose in issuing a summons.  There the court said (at


 700):


   We agree with the government, however, that respondent should be required to


 do more than allege an improper purpose before discovery is ordered in a


 proceeding of this type.  Some evidence supporting respondent's allegations


 should be introduced.  We approve of the following suggestion, offered by the


 government:


   "The general solution would probably be for the district court to proceed


 directly to a hearing at which, if desired, the summonee could examine the


 agent who issued the summons, concerning his purpose.  The court could then, by


 observation and, where necessary, its own questioning of the agent, makes its


 own determination of whether exploration, as by discovery, seemed to be in


 order."


   If, at the end of the hearing, there remains a substantial question in the


 court's mind regarding the validity of the government's purpose, it may then


 grant discovery.


  The Third Circuit has recently adopted a similar procedure in United States


 v. McCarthy, 3 Cir., 1975, 514 F.2d 368.  We agree with the First and Third


 Circuits that this solution would accommodate the needs of efficient tax


 administration and at the same time provide a reasonable opportunity for the


 summonee to carry the burden imposed by Powell, supra, of showing an abuse of


 the court's process.


  In approving the procedure suggested by the First Circuit, we also endorse


 that court's limiting rationale that the purpose of the evidentiary hearing is


 to sift out those rare cases where bald allegations of harassment or improper


 purpose can be substantiated and thereby to avoid dilatory and burdensome


 discovery procedures.  As the First Circuit said in Salter, supra, 432 F.2d


 at 700-01 (footnote omitted):


   We believe that there are strong reasons of public policy for placing a


 *825 burden of proof on respondent before allowing discovery in an


 enforcement proceeding of this type.  A broad discovery order puts the Internal


 Revenue Service under a severe handicap in conducting a civil investigation.


 Broad discovery can be expected to cause extensive delays and to jeopardize the


 integrity and effectiveness of the entire investigation.  Coupled with these


 considerations is the fact that taxpayers have been almost uniformly


 unsuccessful in proving an "improper purpose" defense.  Requiring an


 evidentiary hearing will not preclude a respondent from raising and proving a


 (sic) "improper purpose," and we of course have no intention of precluding him


 from doing so.  But we feel that the hearing requirement will have the salutary


 effect of eliminating discovery in cases in which it is clear that respondent


 will not be able to prove his allegations.


  Applying these principles to the case at hand, we conclude that the Church's


 allegations of bad faith harassment by the Service, though thin, raised


 sufficient doubt about the Service's purposes to require the district court to


 hold a limited evidentiary hearing to determine whether further inquiry into


 the Service's purposes by way of discovery is warranted.  Although we


 anticipate that such a hearing would entail, for example, cross-examination of


 the summoning agent (Cf. Wild v. United States, 9 Cir., 1966, 362 F.2d 206,


 208-09), we do not attempt to define precisely the permissible scope of the


 evidentiary hearing.  We leave that to the discretion of the district court.


  [17] In the proceedings below, the Church attempted discovery only by way of


 taking depositions and requests for IRS documents.  Apparently counsel for the


 Church mistakenly believed that it had a right to discovery before the


 presentation of any evidence in the summons enforcement proceeding.  Thus it is


 arguable that the Church waived any argument that it was entitled to a pre-


 discovery evidentiary hearing.  However, we agree with the Third Circuit,


 McCarthy, supra, 514 F.2d at 368 n. 11, that to hold under these


 circumstances that the Church failed to ask the court for the proper sequence


 of procedures would be unduly harsh.  Moreover, in reviewing the record, we


 note that the Church twice called the district court's attention to the


 Salter case and the procedure there recommended.  Accordingly, we conclude


 that the Church did not waive its right to an evidentiary hearing.


  IV.  Conclusion.


  In view of our conclusion that the district court should have granted the


 Church a limited evidentiary hearing to inquire into the Service's purposes, we


 do not reach the Church's other arguments for reversal.


  Reversed and remanded for further proceedings.