Maryland Code, Labor and Employment § 9-311

(a) To carry out this title, a member of the Commission, the Secretary of the Commission, a special examiner, or an inspector may issue a subpoena for the attendance of a witness to testify or the production of a relevant document or record.

(b) On request of a party to a proceeding before the Commission, the Commission shall issue a subpoena for a hearing before the Commission for:

(c) On a request of a party to a claim on which issues are currently pending, the Commission shall issue a subpoena for relevant documentation to be produced at the office of the requesting party and distributed to all parties to the claim in accordance with regulations adopted by the Commission.

(d) If the Commission, after an evidentiary hearing, determines that a subpoena was requested in bad faith, the Commission may assess against the requesting party the whole cost of the proceeding, including reasonable attorney's fees.

(e) An officer who serves a subpoena issued under this section is entitled to the same fee as the sheriff in the county where the witness is subpoenaed would be entitled.