Rule 2-510.Subpoenas — Court proceedings and depositions
Circuit Court · Last amended January 1, 2025 · Last verified July 13, 2026
Full Text of Rule 2-510
Amendment History
Amended Feb. 10, 1998, effective July 1, 1998; Apr. 9, 2002, effective July 1, 2002; Oct. 31, 2002, effective Jan. 1, 2003; Nov. 12, 2003, effective Jan. 1, 2004; Dec. 4, 2007, effective Jan. 1, 2008; Oct. 4, 2012, effective Jan. 1, 2013; March 3, 2015, effective July 1, 2015; September 17, 2015, effective January 1, 2016; December 13, 2016, effective April 1, 2017; April 9, 2018, effective July 1, 2018; October 15, 2024, effective January 1, 2025.
Committee Note & Source
Committee note. This Rule does not apply to subpoenas issued under Code, Courts Article, Title 9, Subtitle 4 (Maryland Uniform Interstate Depositions and Discovery Act) requiring attendance at a deposition in this State. For subpoenas issued under that Act in conjunction with a deposition, see Rule 2-510.1. For discovery of documents, electronically stored information, and property from a party to an action pending in this State, other than in conjunction with a deposition, see Rule 2-422. For inspection of property of a nonparty in an action pending in this State and for discovery under the Maryland Uniform Interstate Depositions and Discovery Act that is not in conjunction with a deposition, see Rule 2-422.1.
Committee note. A subpoena may be used to compel attendance at a court proceeding or deposition that will be held more than 60 days after the date of issuance, provided that the subpoena is served within the 60-day period. The failure to serve a subpoena within the 60-day period does not preclude the reissuance of a new subpoena.
Cross references. See Code, Courts Article, § 6-410, concerning service upon certain persons other than the custodian of public records named in the subpoena if the custodian is not known and cannot be ascertained after a reasonable effort. As to additional requirements for certain subpoenas, see Code, Health - General Article, §§ 4-302 and 4-306 (b)(6), 45 C.F.R. 164.512 regarding medical records; Code, Health - General Article, § 4-307 regarding mental health records; and Code, Financial Institutions Article, § 1-304.
Cross references. For the availability of sanctions for violations of this section, see Rules 1-201 (a) and 1-341.
Cross references. Code, Health - General Article, § 4-306 (b)(6); Code, Financial Institutions Article, § 1-304.
Cross references. Code, Courts Article, § 10-104 includes an alternative method of authenticating medical records in certain cases transferred from the District Court upon a demand for a jury trial.
Source. This Rule is derived as follows:
Section (a) is new but the first and second sentences are derived in part from the 2006 version of Fed. R. Civ. P. 45
Plain-English Summary
Rule 2-510 governs the workhorse tool for pulling in witnesses, documents, and electronically stored information: the subpoena. A subpoena is required to make a nonparty show up and testify, or hand over records, at a court proceeding or a deposition. It is only permissive, not required, when a party wants to compel a fellow party (over whom the court already has jurisdiction) to appear at a deposition. Using a subpoena for anything else invites sanctions, including attorney's fees, exclusion of evidence, and reimbursement for anyone inconvenienced by the misuse. The clerk issues subpoenas on a uniform, state-approved form, either filling it in on request or handing over a signed, sealed blank form for an attorney to complete. A subpoena has a shelf life: it must be served within 60 days of issuance, and whenever practical, at least five days before the trial or hearing it commands attendance at.
The rule also builds in ways to push back. Someone served with a trial or hearing subpoena can move to quash or modify it, shift the timing or location of compliance, or require the requesting party to front the cost of producing records. Someone served with a deposition subpoena that demands documents can seek a protective order or file a written objection within ten days, which halts production until a judge orders otherwise. Separate provisions cover how document custodians can comply by mailing sealed records to the clerk instead of appearing in person, what happens to a witness who ignores a subpoena outright (body attachment), and how a party must handle privileged material it receives by mistake — notify the sender, stop using it, and let the court sort out the claim.
Frequently Asked Questions
Who can get a subpoena issued in a Maryland circuit court case?
Any person entitled to one under the rule can ask the clerk to issue it, and a member of the Maryland Bar handling the case can request a signed, sealed blank form to fill in directly. Only the clerk, or an attorney using a form the clerk issued, may complete a subpoena for service — anyone else who copies and fills in a blank form violates the rule.
How long does a subpoena stay valid once it's issued?
It must be served within 60 days of the date the clerk issues it. Serving it, or attempting to serve it, after that window closes violates the rule, though the proceeding the subpoena calls for can still take place more than 60 days out — the deadline runs on service, not on the date of the hearing or deposition.
What can I do if I don't want to comply with a subpoena?
It depends on what the subpoena demands. For a court proceeding, file a motion asking the court to quash or modify it, or to change when, where, or on what terms compliance happens. For a deposition subpoena that also demands documents, either seek a protective order or file a written objection within ten days of service — once you object, the requesting party needs a court order to get the material.
Does a records custodian have to show up in person to comply with a trial subpoena?
No. A custodian can deliver the records to the clerk in a sealed, labeled envelope along with a certification that they are complete and kept in the regular course of business, and that certification serves as prima facie proof the records are authentic. The custodian only needs to appear in person if the subpoena specifically states why their presence is required.
What if I'm handed privileged documents by mistake in response to a subpoena?
Notify the sender promptly once you know or should know the material was sent inadvertently, and stop using or disclosing it until any dispute over the privilege claim is resolved. If you already shared the material with someone else, you have to take reasonable steps to get it back. Either side can ask the court, by a motion filed under seal, to rule on whether the privilege claim holds up.