DE · rules
Del. Ct. Com. Pl. Civ. R. 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 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).
(2) Insurance agreements. A party may obtain discovery of the existence and contents of any
insurance agreement under which any person carrying on an insurance business may be liable to
satisfy part or all of a judgment which may be entered in the action or to indemnify or reimburse for
payments made to satisfy the judgment. Information concerning the insurance agreement is not by
reason of disclosure admissible in evidence at trial. For purposes of this subparagraph, an application
for insurance shall not be treated as part of an insurance agreement.
(3) Trial preparation: Materials. Subject to the provisions of paragraph (b)(4) of this rule, a party
may obtain discovery of documents and tangible things otherwise discoverable under paragraph
(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.
(4) Trial preparation: Experts. Discovery of facts known and opinions held by experts, otherwise
discoverable under the provisions of subdivision (b)(1) of this Rule and acquired or developed in
anticipation of litigation or for trial, may be obtained only as follows:
(A) A party may through interrogatories require any other party to identify each person whom the
other party expects to call as an expert witness at trial, to state the subject matter on which the
expert is expected to testify, and to state the substance of the facts and opinions to which the
expert is expected to testify and a summary of the grounds for each opinion. (ii) Upon motion the
Court may order further discovery by other means, subject to such restrictions as to scope and
such provisions, pursuant to subdivision (b)(4)(C) of this Rule, concerning fees and expenses as
the court may deem appropriate.
(B) A party may discover facts known or opinions held by an expert who has been retained or
specially employed by another party in anticipation of litigation or preparation for trial and who is
not expected to be called as a witness at trial, only as provided in Rule 35(b) or upon a showing
of exceptional circumstances under which it is impracticable for the party seeking discovery to
obtain facts or opinions on the same subject by other means.
(C) Unless manifest injustice would result, (i) the Court shall require that the party seeking
discovery pay the expert a reasonable fee for time spent in responding to discovery under
subdivisions (b)(4)(A)(ii) and (b)(4)(B) of this Rule; and (ii) with respect to discovery obtained
under subdivision (b)(4)(A)(ii) of this Rule the Court may require, and with respect to discovery
obtained under subdivision (b)(4)(B) of this Rule the Court shall require, the party seeking
discovery to pay the other party a fair portion of the fees and expenses reasonably incurred by the
latter party in obtaining facts and opinions from the expert.
(5) Claims of privilege or protection of trial preparation materials. When a party withholds
information otherwise discoverable under these rules by claiming that it is privileged or subject to
protection as trial preparation material, the party shall make the claim expressly and shall describe the
nature of the documents, communications, or things not produced or disclosed in a manner that,
without revealing information itself privileged or protected, will enable other parties to assess the
applicability of the privilege or protection.
(c) Protective orders. Upon motion by a party or by the person from whom discovery is sought, and for
good cause shown, the Court or alternatively, on matters relating to a deposition taken outside the State of
Delaware, a court in the state where the deposition is to be taken, may make any order which justice
requires to protect a party or person from annoyance, embarrassment, oppression, or undue burden or
expense, including one or more of the following: (1) That the discovery not be had; (2) that the discovery
may be had only on specified terms and conditions, including a designation of the time or place; (3) that
the discovery may be had only by a method of discovery other than that selected by the party seeking
discovery; (4) that certain matters not be inquired into, or that the scope of the discovery be limited to
certain matters; (5) that discovery be conducted with no one present except persons designated by the
Court; (6) that a deposition after being sealed be opened only by order of the Court; (7) that a trade secret
or other confidential research, development, or commercial information not be disclosed or be disclosed
only in a designated way; (8) that the parties simultaneously file specified documents or information
enclosed in sealed envelopes to be opened as directed by the Court.
If the motion for a protective order is denied in whole or in part, the Court may, on such terms and
conditions as are just, order that any party or person provide or permit discovery. The provisions of
Rule 37(a)(4) apply to the award of expenses incurred in relation to the motion.
(d) Sequence and timing of discovery. Unless the Court upon motion, for the convenience of parties and
witnesses and in the interests of justice, orders otherwise, methods of discovery may be used in any
sequence and the fact that a party is conducting discovery, whether by deposition or otherwise, shall not
operate to delay any other party’s discovery.
(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.
(3) A duty to supplement responses may be imposed by order of the Court, agreement of the parties,
or at any time prior to trial through new requests for supplementation of prior responses.
(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 discovery. The Court shall
do so upon motion by the attorney for any party if the motion includes:
(1) A statement of the issues as they then appear;
(2) A proposed plan and schedule of discovery;
(3) Any limitations proposed to be placed on discovery;
(4) Any other proposed orders with respect to discovery; and
(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.
(h) The use of any form of discovery which requires the opposing party to retype the document as part of
the process of responding to it, requires the author of the discovery to disclose the software used to create
it and offer to provide a copy in magnetic format to the party who must respond. This subsection shall
apply only where all parties are represented by counsel and the technology is available. The Court in its
discretion may relieve the parties of this obligation.
History
Amended, effective Jan. 15, 1998.
Provenance
- Source
- courts.delaware.gov
- Retrieved
- 2026-09-23
- Edition
- 2026-09-23
- Content hash
dc8c94f8e5b62adad8933e646acfd9c256d564436e828cab6af61eb85f59b068
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