risdiction over the subject matter of the action shall be joined as a party in the action if (1) in the person's absence complete relief cannot be accorded among those already parties, or (2) the person claims an interest relating to the subject of the action and is so situated that the disposition of the action in the person's absence may (i) as a practical matter impair or impede the person's ability to protect that interest or (ii) leave any of the persons already parties subject to a substantial risk of incurring double, multiple, or otherwise inconsistent obligations by reason of the claimed interest. If the person has not been so joined, the court shall order that the person be made a party. If the person should join as a plaintiff but refuses to do so, the person may be made a defendant, or, in a proper case, an involuntary plaintiff. If the joined party objects to venue and joinder of that party would render the venue of the action improper, that party shall be dismissed from the action.

(b) DETERMINATION BY COURT WHENEVER JOINDER NOT FEASIBLE. If a person as described in subdivision (a)(1)–(2) hereof cannot be made a party, the court shall determine whether in equity and good conscience the action should proceed among the parties before it, or should be dismissed, the absent person being thus regarded as indispensable. The factors to be considered by the court include: first, to what extent a judgment rendered in the person's absence might be prejudicial to the person or those already parties; second, the extent to which, by protective provisions in the judgment, by the shaping of relief, or other measures, the prejudice can be lessened or avoided; third, whether a judgment rendered in the person's absence will be adequate; fourth, whether the plaintiff will have an adequate remedy if the action is dismissed for nonjoinder.

[See main edition for text of (c) and (d)] (As amended Mar. 2, 1987, eff. Aug. 1, 1987.) NOTES OF ADVISORY COMMITTEE ON RULES-1987 AMENDMENT

The amendments are technical. No substantive change is intended.

Rule 20. Permissive Joinder of Parties

[See main edition for text of (a)]

(b) SEPARATE TRIALS. The court may make such orders as will prevent a party from being embarrassed, delayed, or put to expense by the inclusion of a party against whom the party asserts no claim and who asserts no claim against the party, and may order separate trials or make other orders to prevent delay or prejudice.

(As amended Mar. 2, 1987, eff. Aug. 1, 1987.) NOTES OF ADVISORY COMMITTEE ON RULES-1987 AMENDMENT

The amendments are technical. No substantive change is intended.

Rule 22. Interpleader

(1) Persons having claims against the plaintiff may be joined as defendants and required

to interplead when their claims are such that the plaintiff is or may be exposed to double or multiple liability. It is not ground for objection to the joinder that the claims of the several claimants or the titles on which their claims depend do not have a common origin or are not identical but are adverse to and independent of one another, or that the plaintiff avers that the plaintiff is not liable in whole or in part to any or all of the claimants. A defendant exposed to similar liability may obtain such interpleader by way of cross-claim or counterclaim. The provisions of this rule supplement and do not in any way limit the joinder of parties permitted in Rule 20.

[See main edition for text of (2)]

(As amended Mar. 2, 1987, eff. Aug. 1, 1987.)

NOTES OF ADVISORY COMMITTEE ON RULES-1987 AMENDMENT

The amendment is technical. No substantive change is intended.

Rule 23. Class Actions

[See main edition for text of (a) and (b)]

(c) DETERMINATION BY ORDER WHETHER CLASS ACTION TO BE MAINTAINED; NOTICE; JUDGMENT; ACTIONS CONDUCTED PARTIALLY AS CLASS AcTIONS.

[See main edition for text of (1)]

(2) In any class action maintained under subdivision (b)(3), the court shall direct to the members of the class the best notice practicable under the circumstances, including individual notice to all members who can be identified through reasonable effort. The notice shall advise each member that (A) the court will exclude the member from the class if the member so requests by a specified date; (B) the judgment, whether favorable or not, will include all members who do not request exclusion; and (C) any member who does not request exclusion may, if the member desires, enter an appearance through counsel.

[See main edition for text of (3) and (4); (d) and (e)]

(As amended Mar. 2, 1987, eff. Aug. 1, 1987.)

NOTES OF ADVISORY COMMITTEE ON RULES-1987 AMENDMENT

The amendments are technical. No substantive change is intended.

Rule 23.1. Derivative Actions by Shareholders

In a derivative action brought by one or more shareholders or members to enforce a right of a corporation or of an unincorporated association, the corporation or association having failed to enforce a right which may properly be asserted by it, the complaint shall be verified and shall allege (1) that the plaintiff was a shareholder or member at the time of the transaction of which the plaintiff complains or that the plaintiff's share or membership thereafter devolved on the plaintiff by operation of

law, and (2) that the action is not a collusive one to confer jurisdiction on a court of the United States which it would not otherwise have. The complaint shall also allege with particularity the efforts, if any, made by the plaintiff to obtain the action the plaintiff desires from the directors or comparable authority and, if necessary, from the shareholders or members, and the reasons for the plaintiff's failure to obtain the action or for not making the effort. The derivative action may not be maintained if it appears that the plaintiff does not fairly and adequately represent the interests of the shareholders or members similarly situated in enforcing the right of the corporation or association. The action shall not be dismissed or compromised without the approval of the court, and notice of the proposed dismissal or compromise shall be given to shareholders or members in such manner as the court directs. (As amended Mar. 2, 1987, eff. Aug. 1, 1987.) NOTES OF ADVISORY COMMITTEE ON RULES-1987 AMENDMENT

The amendments are technical. No substantive change is intended.

Rule 24. Intervention

(a) INTERVENTION OF RIGHT. Upon timely application anyone shall be permitted to intervene in an action: (1) when a statute of the United States confers an unconditional right to intervene; or (2) when the applicant claims an interest relating to the property or transaction which is the subject of the action and the applicant is so situated that the disposition of the action may as a practical matter impair or impede the applicant's ability to protect that interest, unless the applicant's interest is adequately represented by existing parties.

[See main edition for text of (b) and (c)] (As amended Mar. 2, 1987, eff. Aug. 1, 1987.) NOTES OF ADVISORY COMMITTEE ON RULES-1987 AMENDMENT

The amendments are technical. No substantive change is intended.

Rule 25. Substitution of Parties

[See main edition for text of (a)]

(b) INCOMPETENCY. If a party becomes incompetent, the court upon motion served as provided in subdivision (a) of this rule may allow the action to be continued by or against the party's representative.

[See main edition for text of (c)]

(d) PUBLIC OFFICERS; DEATH OR SEPARATION FROM OFFICE.

(1) When a public officer is a party to an action in his official capacity and during its pendency dies, resigns, or otherwise ceases to hold office, the action does not abate and the officer's successor is automatically substituted as a party. Proceedings following the substitution shall be in the name of the substituted party, but any misnomer not affecting the substantial rights of the parties shall be

disregarded. An order of substitution may be entered at any time, but the omission to enter such an order shall not affect the substitution.

(2) A public officer who sues or is sued in an official capacity may be described as a party by the officer's official title rather than by name; but the court may require the officer's name to be added.

(As amended Mar. 2, 1987, eff. Aug. 1, 1987.) NOTES OF ADVISORY COMMITTEE ON RULES-1987 AMENDMENT

The amendments are technical. No substantive change is intended.

V. DEPOSITIONS AND DISCOVERY Rule 26. General Provisions Governing Discovery

(a) DISCOVERY METHODS. Parties may obtain discovery by one or more of the following methods: depositions upon oral examination or written questions; written interrogatories; production of documents or things or permission to enter upon land or other property, for inspection and other purposes; physical and mental examinations; and requests for admission.

(b) DISCOVERY SCOPE AND LIMITS. Unless otherwise limited by order of the court in accordance with these rules, the scope of discovery is as follows:

(1) In General. Parties may obtain discovery regarding any matter, not privileged, which is relevant to the subject matter involved in the pending action, whether it relates to the claim or defense of the party seeking discovery or to the claim or defense of any other party, including the existence, description, nature, custody, condition and location of any books, documents, or other tangible things and the identity and location of persons having knowledge of any discoverable matter. It is not ground for objection that the information sought will be inadmissible at the trial if the information sought appears reasonably calculated to lead to the discovery of admissible evidence.

The frequency or extent of use of the discovery methods set forth in subdivision (a) shall be limited by the court if it determines that: (i) the discovery sought is unreasonably cumulative or duplicative, or is obtainable from some other source that is more convenient, less burdensome, or less expensive; (ii) the party seeking discovery has had ample opportunity by discovery in the action to obtain the information sought; or (iii) the discovery is unduly burdensome or expensive, taking into account the needs of the case, the amount in controversy, limitations on the parties' resources, and the importance of the issues at stake in the litigation. The court may act upon its own initiative after reasonable notice or pursuant to a motion under subdivision (c).

[See main edition for text of (2)]

(3) Trial Preparation: Materials. Subject to the provisions of subdivision (b)(4) of this rule, a party may obtain discovery of docu

ments and tangible things otherwise discoverable under subdivision (b)(1) of this rule and prepared in anticipation of litigation or for trial by or for another party or by or for that other party's representative (including the other party's attorney, consultant, surety, indemnitor, insurer, or agent) only upon a showing that the party seeking discovery has substantial need of the materials in the preparation of the party's case and that the party is unable without undue hardship to obtain the substantial equivalent of the materials by other means. In ordering discovery of such materials when the required showing has been made, the court shall protect against disclosure of the mental impressions, conclusions, opinions, or legal theories of an attorney or other representative of a party concerning the litigation.

A party may obtain without the required showing a statement concerning the action or its subject matter previously made by that party. Upon request, a person not a party may obtain without the required showing a statement concerning the action or its subject matter previously made by that person. If the request is refused, the person may move for a court order. The provisions of Rule 37(a)(4) apply to the award of expenses incurred in relation to the motion. For purposes of this paragraph, a statement previously made is (A) a written statement signed or otherwise adopted or approved by the person making it, or (B) a stenographic, mechanical, electrical, or other recording, or a transcription thereof, which is a substantially verbatim recital of an oral statement by the person making it and contemporaneously recorded.

[See main edition for text of (4); (c) and (d)] (e) SUPPLEMENTATION OF RESPONSES. A party who has responded to a request for discovery with a response that was complete when made is under no duty to supplement the response to include information thereafter acquired, except as follows:

(1) A party is under a duty seasonably to supplement the response with respect to any question directly addressed to (A) the identity and location of persons having knowledge of discoverable matters, and (B) the identity of each person expected to be called as an expert witness at trial, the subject matter on which the person is expected to testify, and the substance of the person's testimony.

(2) A party is under a duty seasonably to amend a prior response if the party obtains information upon the basis of which (A) the party knows that the response was incorrect when made, or (B) the party knows that the response though correct when made is no longer true and the circumstances are such that a failure to amend the response is in substance a knowing concealment.

[See main edition for text of (3)]

(f) DISCOVERY CONFERENCE. At any time after commencement of an action the court may direct the attorneys for the parties to appear before it for a conference on the subject of dis

covery. The court shall do so upon motion by the attorney for any party if the motion includes:

[See main edition for text of (1) to (4)]

(5) A statement showing that the attorney making the motion has made a reasonable effort to reach agreement with opposing attorneys on the matters set forth in the motion. Each party and each party's attorney are under a duty to participate in good faith in the framing of a discovery plan if a plan is proposed by the attorney for any party. Notice of the motion shall be served on all parties. Objections or additions to matters set forth in the motion shall be served not later than 10 days after service of the motion.

Following the discovery conference, the court shall enter an order tentatively identifying the issues for discovery purposes, establishing a plan and schedule for discovery, setting limitations on discovery, if any; and determining such other matters, including the allocation of expenses, as are necessary for the proper management of discovery in the action. An order may be altered or amended whenever justice so requires.

Subject to the right of a party who properly moves for a discovery conference to prompt convening of the conference, the court may combine the discovery conference with a pretrial conference authorized by Rule 16.

(g) SIGNING OF DISCOVERY REQUESTS, RESPONSES, AND OBJECTIONS. Every request for discovery or response or objection thereto made by a party represented by an attorney shall be signed by at least one attorney of record in the attorney's individual name, whose address shall be stated. A party who is not represented by an attorney shall sign the request, response, or objection and state the party's address. The signature of the attorney or party constitutes a certification that the signer has read the request, response, or objection, and that to the best of the signer's knowledge, information, and belief formed after a reasonable inquiry it is: (1) consistent with these rules and warranted by existing law or a good faith argument for the extension, modification, or reversal of existing law; (2) not interposed for any improper purpose, such as to harass or to cause unnecessary delay or needless increase in the cost of litigation; and (3) not unreasonable or unduly burdensome or expensive, given the needs of the case, the discovery already had in the case, the amount in controversy, and the importance of the issues at stake in the litigation. If a request, response, or objection is not signed, it shall be stricken unless it is signed promptly after the omission is called to the attention of the party making the request, response, or objection, and a party shall not be obligated to take any action with respect to it until it is signed.

If a certification is made in violation of the rule, the court, upon motion or upon its own initiative, shall impose upon the person who made the certification, the party on whose behalf the request, response, or objection is made, or both, an appropriate sanction, which

may include an order to pay the amount of the reasonable expenses incurred because of the violation, including a reasonable attorney's fee. (As amended Apr. 28, 1983, eff. Aug. 1, 1983; Mar. 2, 1987, eff. Aug. 1, 1987.)

NOTES OF ADVISORY COMMITTEE ON RULES-1983
AMENDMENT

Excessive discovery and evasion or resistance to reasonable discovery requests pose significant problems. Recent studies have made some attempt to determine the sources and extent of the difficulties. See Brazil, Civil Discovery: Lawyers' Views of its Effectiveness, Principal Problems and Abuses, American Bar Foundation (1980); Connolly, Holleman & Kuhlman, Judicial Controls and the Civil Litigative Process: Discovery, Federal Judicial Center (1978); Ellington, A Study of Sanctions for Discovery Abuse, Department of Justice (1979); Schroeder & Frank, The Proposed Changes in the Discovery Rules, 1978 Ariz. St. L.J. 475.

The purpose of discovery is to provide a mechanism for making relevant information available to the litigants. "Mutual knowledge of all the relevant facts gathered by both parties is essential to proper litigation." Hickman v. Taylor, 329 U.S. 495, 507 (1947). Thus the spirit of the rules is violated when advocates attempt to use discovery tools as tactical weapons rather than to expose the facts and illuminate the issues by overuse of discovery or unnecessary use of defensive weapons or evasive responses. All of this results in excessively costly and time-consuming activities that are disproportionate to the nature of the case, the amount involved, or the issues or values at stake.

Given our adversary tradition and the current discovery rules, it is not surprising that there are many opportunities, if not incentives, for attorneys to engage in discovery that, although authorized by the broad, permissive terms of the rules, nevertheless results in delay. See Brazil, The Adversary Character of Civil Discovery: A Critque and Proposals for Change, 31 Vand.L.Rev. 1259 (1978). As a result, it has been said that the rules have "not infrequently [been] exploited to the disadvantage of justice." Herbert v. Lando, 441 U.S. 153, 179 (1979) (Powell, J., concurring). These practices impose costs on an already overburdened system and impede the fundamental goal of the "just, speedy, and inexpensive determination of every action." Fed. R. Civ. P. 1.

Subdivision (a); Discovery Methods. The deletion of the last sentence of Rule 26(a)(1), which provided that unless the court ordered otherwise under Rule 26(c) "the frequency of use" of the various discovery methods was not to be limited, is an attempt to address the problem of duplicative, redundant, and excessive discovery and to reduce it. The amendment, in conjunction with the changes in Rule 26(b)(1), is designed to encourage district judges to identify instances of needless discovery and to limit the use of the various discovery devices accordingly. The question may be raised by one of the parties, typically on a motion for a protective order, or by the court on its own initiative. It is entirely appropriate to consider a limitation on the frequency of use of discovery at a discovery conference under Rule 26(f) or at any other pretrial conference authorized by these rules. In considering the discovery needs of a particular case, the court should consider the factors described in Rule 26(b)(1). Subdivison (b); Discovery Scope and Limits. Rule 26(b)(1) has been amended to add a sentence to deal with the problem of over-discovery. The objective is to guard against redundant or disproportionate discovery by giving the court authority to reduce the amount of discovery that may be directed to matters that are otherwise proper subjects of inquiry. The new sentence is intended to encourage judges to be more aggressive in identifying and discouraging discovery overuse. The grounds mentioned in the amended rule

for limiting discovery reflect the existing practice of many courts in issuing protective orders under Rule 26(c). See e.g., Carlson Cos. v. Sperry & Hutchinson Co., 374 F.Supp. 1080 (D. Minn. 1974); Dolgow v. Anderson, 53 F.R.D. 661 (E.D.N.Y. 1971); Mitchell v. American Tobacco Co., 33 F.R.D. 262 (M.D.Pa. 1963); Welty v. Clute, 1 F.R.D. 446 (W.D.N.Y. 1941). On the whole, however, district judges have been reluctant to limit the use of the discovery devices. See, e.g., Apco Oil Co. v. Certified Transp., Inc., 46 F.R.D. 428 (W.D.Mo. 1969). See generally 8 Wright & Miller, Federal Practice and Procedure: Civil §§ 2036, 2037, 2039, 2040 (1970).

The first element of the standard, Rule 26(b)(1)(i), is designed to minimize redundancy in discovery and encourage attorneys to be sensitive to the comparative costs of different methods of securing information. Subdivision (b)(1)(ii) also seeks to reduce repetitiveness and to oblige lawyers to think through their discovery activities in advance so that full utilization is made of each deposition, document request, or set of interrogatories. The elements of Rule 26(b)(1)(iii) address the problem of discovery that is disproportionate to the individual lawsuit as measured by such matters as its nature and complexity, the importance of the issues at stake in a case seeking damages, the limitations on a financially weak litigant to withstand extensive opposition to a discovery program or to respond to discovery requests, and the significance of the substantive issues, as measured in philosophic, social, or institutional terms. Thus the rule recognizes that many cases in public policy spheres, such as employment practices, free speech, and other matters, may have importance far beyond the monetary amount involved. The court must apply the standards in an even-handed manner that will prevent use of discovery to wage a war of attrition or as a device to coerce a party, whether financially weak or affluent.

The rule contemplates greater judicial involvement in the discovery process and thus acknowledges the reality that it cannot always operate on a self-regulating basis. See Connolly, Holleman & Kuhlman, Judicial Controls and the Civil Litigative Process: Discovery 77, Federal Judicial Center (1978). In an appropriate case the court could restrict the number of depositions, interrogatories, or the scope of a production request. But the court must be careful not to deprive a party of discovery that is reasonably necessary to afford a fair opportunity to develop and prepare the

case.

The court may act on motion, or its own initiative. It is entirely appropriate to resort to the amended rule in conjunction with a discovery conference under Rule 26(f) or one of the other pretrial conferences authorized by the rules.

Subdivision (g); Signing of Discovery Requests, Responses, and Objections. Rule 26(g) imposes an affirmative duty to engage in pretrial discovery in a responsible manner that is consistent with the spirit and purposes of Rules 26 through 37. In addition, Rule 26(g) is designed to curb discovery abuse by explicitly encouraging the imposition of sanctions. The subdivision provides a deterrent to both excessive discovery and evasion by imposing a certification requirement that obliges each attorney to stop and think about the legitimacy of a discovery request, a response thereto, or an objection. The term "response" includes answers to interrogatories and to requests to admit as well as responses to production requests.

If primary responsibility for conducting discovery is to continue to rest with the litigants, they must be obliged to act responsibly and avoid abuse. With this in mind, Rule 26(g), which parallels the amendments to Rule 11, requires an attorney or unrepresented party to sign each discovery request, response, or objection. Motions relating to discovery are governed by Rule 11. However, since a discovery request, response, or objection usually deals with more specific subject matter than motions or papers, the elements that

must be certified in connection with the former are spelled out more completely. The signature is a certification of the elements set forth in Rule 26(g).

Although the certification duty requires the lawyer to pause and consider the reasonableness of his request, response, or objection, it is not meant to discourage or restrict necessary and legitimate discovery. The rule simply requires that the attorney make a reasonable inquiry into the factual basis of his response, request, or objection.

The duty to make a “reasonable inquiry" is satisfied if the investigation undertaken by the attorney and the conclusions drawn therefrom are reasonable under the circumstances. It is an objective standard similar to the one imposed by Rule 11. See the Advisory Committee Note to Rule 11. See also Kinee v. Abraham Lincoln Fed. Sav. & Loan Ass'n, 365 F.Supp. 975 (E.D. Pa. 1973). In making the inquiry, the attorney may rely on assertions by the client and on communications with other counsel in the case as long as that reliance is appropriate under the circumstances. Ultimately, what is reasonable is a matter for the court to decide on the totality of the circumstances.

Rule 26(g) does not require the signing attorney to certify the truthfulness of the client's factual responses to a discovery request. Rather, the signature certifies that the lawyer has made a reasonable effort to assure that the client has provided all the information and documents available to him that are responsive to the discovery demand. Thus, the lawyer's certification under Rule 26(g) should be distinguished from other signature requirements in the rules, such as those in Rules 30(e) and 33.

Nor does the rule require a party or an attorney to disclose privileged communications or work product in order to show that a discovery request, response, or objection is substantially justified. The provisions of Rule 26(c), including appropriate orders after in camera inspection by the court, remain available to protect a party claiming privilege or work product protection.

The signing requirement means that every discovery request, response, or objection should be grounded on a theory that is reasonable under the precedents or a good faith belief as to what should be the law. This standard is heavily dependent on the circumstances of each case. The certification speaks as of the time it is made. The duty to supplement discovery responses continues to be governed by Rule 26(e).

Concern about discovery abuse has led to widespread recognition that there is a need for more aggresive judicial control and supervision. ACF Industries, Inc. v. EEOC, 439 U.S. 1081 (1979) (certiorari denied) (Powell, J., dissenting). Sanctions to deter discovery abuse would be more effective if they were diligently applied "not merely to penalize those whose conduct may be deemed to warrant such a sanction, but to deter those who might be tempted to such conduct in the absence of such a deterrent." National Hockey League v. Metropolitan Hockey Club, 427 U.S. 639, 643 (1976). See also Note, The Emerging Deterrence Orientation in the Imposition of Discovery Sanctions, 91 Harv. L. Rev. 1033 (1978). Thus the premise of Rule 26(g) is that imposing sanctions on attorneys who fail to meet the rule's standards will significantly reduce abuse by imposing disadvantages therefor.

Because of the asserted reluctance to impose sanctions on attorneys who abuse the discovery rules, see Brazil, Civil Discovery: Lawyers' Views of its Effectiveness, Principal Problems and Abuses, American Bar Foundation (1980); Ellington, A Study of Sanctions for Discovery Abuse, Department of Justice (1979), Rule 26(g) makes explicit the authority judges now have to impose appropriate sanctions and requires them to use it. This authority derives from Rule 37, 28 U.S.C. § 1927, and the court's inherent power. See Roadway Express, Inc., v. Piper, 447 U.S. 752 (1980); Martin v. Bell Helicopter Co., 85 F.R.D. 654, 661-62 (D. Col. 1980); Note, Sanctions Imposed by Courts on Attorneys Who Abuse the Judicial Process, 44 U.Chi.L.Rev. 619

(1977). The new rule mandates that sanctions be imposed on attorneys who fail to meet the standards established in the first portion of Rule 26(g). The nature of the sanction is a matter of judicial discretion to be exercised in light of the particular circumstances. The court may take into account any failure by the party seeking sanctions to invoke protection under Rule 26(c) at an early stage in the litigation.

The sanctioning process must comport with due process requirements. The kind of notice and hearing required will depend on the facts of the case and the severity of the sanction being considered. To prevent the proliferation of the sanction procedure and to avoid multiple hearings, discovery in any sanction proceeding normally should be permitted only when it is clearly required by the interests of justice. In most cases the court will be aware of the circumstances and only a brief hearing should be necessary.

NOTES OF ADVISORY COMMITTEE ON RULES-1987 AMENDMENT

The amendments are technical. No substantive change is intended.

Rule 27. Depositions Before Action or Pending Appeal

(a) BEFORE ACTION.

(1) Petition. A person who desires to perpetuate testimony regarding any matter that may be cognizable in any court of the United States may file a verified petition in the United States district court in the district of the residence of any expected adverse party. The petition shall be entitled in the name of the petitioner and shall show: 1, that the petitioner expects to be a party to an action cognizable in a court of the United States but is presently unable to bring it or cause it to be brought, 2, the subject matter of the expected action and the petitioner's interest therein, 3, the facts which the petitioner desires to establish by the proposed testimony and the reasons for desiring to perpetuate it, 4, the names or a description of the persons the petitioner expects will be adverse parties and their addresses so far as known, and 5, the names and addresses of the persons to be examined and the substance of the testimony which the petitioner expects to elicit from each, and shall ask for an order authorizing the petitioner to take the depositions of the persons to be examined named in the petition, for the purpose of perpetuating their testimony.

[See main edition for text of (2) to (4)]

(b) PENDING APPEAL. If an appeal has been taken from a judgment of a district court or before the taking of an appeal if the time therefor has not expired, the district court in which the judgment was rendered may allow the taking of the depositions of witnesses to perpetuate their testimony for use in the event of further proceedings in the district court. In such case the party who desires to perpetuate the testimony may make a motion in the district court for leave to take the depositions, upon the same notice and service thereof as if the action was pending in the district court. The motion shall show (1) the names and addresses of persons to be examined and the substance of the testimony which the party ex