Maryland Rule 2-422: Discovery of Documents and Property
Any party may serve at any time one or more requests to any other party (1) as to items that are in the possession, custody, or control of the party upon whom the request is served, to produce and permit the party making the request, or someone acting on the party's behalf, to inspect and copy any designated documents (including writings, drawings, graphs, charts, photographs, recordings, and other data compilations from which information can be obtained, translated, if necessary, by the respondent through detection devices into reasonably usable form) or to inspect and copy, test, or sample any tangible things which constitute or contain matters within the scope of Rule 2-402 (a); or (2) to permit entry upon designated land or other property in the possession or control of the party upon whom the request is served for the purpose of inspection, measuring, surveying, photographing, testing, or sampling the property or any designated object or operation on the property, within the scope of Rule 2-402 (a).
A request shall set forth the items to be inspected, either by individual item or by category, and shall describe each item and category with reasonable particularity. The request shall specify a reasonable time, place, and manner of making the inspection and performing the related acts.
The party to whom a request is directed shall serve a written response within 30 days after service of the request or within 15 days after the date on which that party's initial pleading or motion is required, whichever is later. The response shall state, with respect to each item or category, that inspection and related activities will be permitted as requested, unless the request is refused, in which event the reasons for refusal shall be stated. If the refusal relates to part of an item or category, the part shall be specified.
A party who produces documents for inspection shall produce them as they are kept in the usual course of business or shall organize and label them to correspond with the categories in the request.